What are ZIP codes or Postal Codes of Iowa?
Here is you list of all Iowa ZIP Code or Postal Codes a stat US. This list has Iowa (IA) area codes, Type Common Cities and County as well. You can find out more information about the Iowa ZIP code by clicking on the link. United States postal codes from USPS and other reliable sources.
| ZIP Code | Type | Common Cities | County | Area Codes |
|---|---|---|---|---|
| 50001 | Standard | Ackworth | Warren County | - |
| 50002 | Standard | Adair | Adair County | 641 |
| 50003 | Standard | Adel | Dallas County | 515 |
| 50005 | Standard | Albion | Marshall County | 641 |
| 50006 | Standard | Alden, Buckeye | Hardin County | 515 |
| 50007 | Standard | Alleman | Polk County | 515 |
| 50008 | Standard | Allerton | Wayne County | 641 |
| 50009 | Standard | Altoona | Polk County | 515 |
| 50010 | Standard | Ames | Story County | 515 |
| 50011 | Unique | Ames | Story County | 515 |
| 50012 | Unique | Ames | Story County | 515 |
| 50013 | Unique | Ames | Story County | 515 |
| 50014 | Standard | Ames | Story County | 515 |
| 50020 | Standard | Anita | Cass County | 712 |
| 50021 | Standard | Ankeny | Polk County | 515 |
| 50022 | Standard | Atlantic | Cass County | 712 |
| 50023 | Standard | Ankeny | Polk County | 515 |
| 50025 | Standard | Audubon | Audubon County | 712 |
| 50026 | Standard | Bagley | Guthrie County | 641 |
| 50027 | Standard | Barnes City | Mahaska County | 641 |
| 50028 | Standard | Baxter | Jasper County | 641 |
| 50029 | Standard | Bayard | Guthrie County | 712 |
| 50031 | PO Box | Beaver | Boone County | 515 |
| 50032 | PO Box | Berwick | Polk County | 515 |
| 50033 | Standard | Bevington | Madison County | - |
| 50034 | Standard | Blairsburg | Hamilton County | 515 |
| 50035 | Standard | Bondurant | Polk County | 515 |
| 50036 | Standard | Boone | Boone County | 515 |
| 50037 | PO Box | Boone | Boone County | 515 |
| 50038 | Standard | Booneville | Dallas County | - |
| 50039 | Standard | Bouton | Dallas County | 515 |
| 50040 | PO Box | Boxholm | Boone County | 515 |
| 50041 | PO Box | Bradford | Franklin County | - |
| 50042 | Standard | Brayton | Audubon County | 712 |
| 50043 | PO Box | Buckeye | Hardin County | - |
| 50044 | Standard | Bussey | Marion County | 641 |
| 50046 | Standard | Cambridge | Story County | 515 |
| 50047 | Standard | Carlisle | Warren County | 515 |
| 50048 | Standard | Casey | Guthrie County | 641 |
| 50049 | Standard | Chariton | Lucas County | 641 |
| 50050 | Standard | Churdan | Greene County | 712,515 |
| 50051 | Standard | Clemons | Marshall County | 641 |
| 50052 | Standard | Clio | Wayne County | 641 |
| 50054 | Standard | Colfax | Jasper County | 515 |
| 50055 | Standard | Collins | Story County | 641 |
| 50056 | Standard | Colo | Story County | 641 |
| 50057 | Standard | Columbia | Marion County | 641 |
| 50058 | Standard | Coon Rapids | Carroll County | 712 |
| 50059 | Standard | Cooper | Greene County | - |
| 50060 | Standard | Corydon, Sewal | Wayne County | 641 |
| 50061 | Standard | Cumming, W Des Moines, Wdm, West Des Moines | Warren County | - |
| 50062 | Standard | Melcher-dallas, Dallas, Melcher Dal | Marion County | 641 |
| 50063 | Standard | Dallas Center | Dallas County | 515 |
| 50064 | Standard | Dana | Greene County | - |
| 50065 | Standard | Davis City, Pleasanton | Decatur County | 641 |
| 50066 | Standard | Dawson | Dallas County | - |
| 50067 | Standard | Decatur | Decatur County | 641 |
| 50068 | Standard | Derby | Lucas County | 641 |
| 50069 | Standard | De Soto | Dallas County | 515 |
| 50070 | Standard | Dexter | Dallas County | 515 |
| 50071 | Standard | Dows | Wright County | 515 |
| 50072 | Standard | Earlham | Madison County | 515 |
| 50073 | Standard | Elkhart | Polk County | 515 |
| 50074 | Standard | Ellston, Beaconsfield | Ringgold County | 641 |
| 50075 | Standard | Ellsworth | Hamilton County | 515 |
| 50076 | Standard | Exira | Audubon County | 712 |
| 50078 | PO Box | Ferguson | Marshall County | 641 |
| 50099 | Standard | Boone | Boone County | 515 |
| 50101 | Standard | Galt | Wright County | - |
| 50102 | PO Box | Garden City | Hardin County | - |
| 50103 | Standard | Garden Grove | Decatur County | 641 |
| 50104 | Standard | Gibson | Keokuk County | - |
| 50105 | Standard | Gilbert | Story County | - |
| 50106 | Standard | Gilman | Marshall County | 641 |
| 50107 | Standard | Grand Junction, Grand Jct | Greene County | 515 |
| 50108 | Standard | Grand River | Decatur County | 641 |
| 50109 | Standard | Granger | Dallas County | 515 |
| 50110 | PO Box | Gray | Audubon County | 712 |
| 50111 | Standard | Grimes | Polk County | 515 |
| 50112 | Standard | Grinnell, Oakland Acres | Poweshiek County | 641 |
| 50115 | Standard | Guthrie Center, Guthrie Ctr | Guthrie County | 641 |
| 50116 | Standard | Hamilton | Marion County | 641 |
| 50117 | Standard | Hamlin | Audubon County | 712 |
| 50118 | Standard | Hartford | Warren County | - |
| 50119 | Standard | Harvey | Marion County | 641 |
| 50120 | Standard | Haverhill | Marshall County | 641 |
| 50122 | Standard | Hubbard | Hardin County | 641,515 |
| 50123 | Standard | Humeston | Wayne County | 641 |
| 50124 | Standard | Huxley | Story County | 515 |
| 50125 | Standard | Indianola, Spring Hill | Warren County | 515 |
| 50126 | Standard | Iowa Falls | Hardin County | 641 |
| 50127 | Standard | Ira | Jasper County | - |
| 50128 | Standard | Jamaica | Guthrie County | 641 |
| 50129 | Standard | Jefferson | Greene County | 515 |
| 50130 | Standard | Jewell | Hamilton County | 515 |
| 50131 | Standard | Johnston | Polk County | 515 |
| 50132 | Standard | Kamrar | Hamilton County | 515 |
| 50133 | Standard | Kellerton | Ringgold County | 641 |
| 50134 | Standard | Kelley | Story County | 515 |
| 50135 | Standard | Kellogg | Jasper County | 641 |
| 50136 | Standard | Keswick | Keokuk County | 319 |
| 50137 | PO Box | Killduff | Jasper County | - |
| 50138 | Standard | Knoxville, Pershing | Marion County | 641 |
| 50139 | Standard | Lacona | Warren County | 641 |
| 50140 | Standard | Lamoni | Decatur County | 641 |
| 50141 | Standard | Laurel | Marshall County | 641 |
| 50142 | PO Box | Le Grand | Marshall County | 641 |
| 50143 | Standard | Leighton | Mahaska County | 641 |
| 50144 | Standard | Leon | Decatur County | 641 |
| 50145 | PO Box | Liberty Center, Liberty Ctr | Warren County | - |
| 50146 | Standard | Linden | Dallas County | 641 |
| 50147 | Standard | Lineville | Wayne County | 641 |
| 50148 | Standard | Liscomb | Marshall County | 641 |
| 50149 | Standard | Lorimor | Union County | 641 |
| 50150 | Standard | Lovilia | Monroe County | 641 |
| 50151 | Standard | Lucas | Lucas County | 641 |
| 50152 | PO Box | Luther | Boone County | 515 |
| 50153 | Standard | Lynnville | Jasper County | 641 |
| 50154 | Standard | Mc Callsburg | Story County | 515 |
| 50155 | Standard | Macksburg | Madison County | 641 |
| 50156 | Standard | Madrid | Boone County | 515 |
| 50157 | Standard | Malcom | Poweshiek County | 641 |
| 50158 | Standard | Marshalltown | Marshall County | 641 |
| 50160 | PO Box | Martensdale | Warren County | - |
| 50161 | Standard | Maxwell | Story County | 515 |
| 50162 | Standard | Melbourne | Marshall County | 641 |
| 50163 | PO Box | Melcher-dallas, Melcher, Melcher Dal | Marion County | - |
| 50164 | Standard | Menlo | Guthrie County | 641 |
| 50165 | Standard | Millerton | Wayne County | 641 |
| 50166 | Standard | Milo | Warren County | 641 |
| 50167 | Standard | Minburn | Dallas County | 515 |
| 50168 | Standard | Mingo | Jasper County | 641 |
| 50169 | Standard | Mitchellville | Polk County | - |
| 50170 | Standard | Monroe | Jasper County | 641 |
| 50171 | Standard | Montezuma | Poweshiek County | 641 |
| 50173 | Standard | Montour | Tama County | 641 |
| 50174 | Standard | Murray | Clarke County | 641 |
| 50201 | Standard | Nevada | Story County | 515 |
| 50206 | Standard | New Providence, New Providnce | Hardin County | 641 |
| 50207 | Standard | New Sharon, Taintor | Mahaska County | 641 |
| 50208 | Standard | Newton | Jasper County | 641 |
| 50210 | Standard | New Virginia | Warren County | 641 |
| 50211 | Standard | Norwalk | Warren County | 641,515 |
| 50212 | Standard | Ogden | Boone County | 515 |
| 50213 | Standard | Osceola | Clarke County | 641 |
| 50214 | Standard | Otley | Marion County | 641 |
| 50216 | Standard | Panora | Guthrie County | 641 |
| 50217 | Standard | Paton | Greene County | 515 |
| 50218 | PO Box | Patterson | Madison County | - |
| 50219 | Standard | Pella | Marion County | 641 |
| 50220 | Standard | Perry | Dallas County | 515 |
| 50222 | Standard | Peru, East Peru | Madison County | 641 |
| 50223 | Standard | Pilot Mound | Boone County | 515 |
| 50225 | Standard | Pleasantville | Marion County | 515 |
| 50226 | Standard | Polk City | Polk County | 515 |
| 50227 | Standard | Popejoy | Franklin County | - |
| 50228 | Standard | Prairie City | Jasper County | 515 |
| 50229 | Standard | Prole | Warren County | 641 |
| 50230 | Standard | Radcliffe | Hardin County | 515 |
| 50231 | PO Box | Randall | Hamilton County | 515 |
| 50232 | Standard | Reasnor | Jasper County | 641 |
| 50233 | Standard | Redfield | Dallas County | 515 |
| 50234 | Standard | Rhodes, Harvester | Marshall County | 641 |
| 50235 | Standard | Rippey | Greene County | 515 |
| 50236 | Standard | Roland | Story County | 515 |
| 50237 | Standard | Runnells | Polk County | 515 |
| 50238 | Standard | Russell | Lucas County | 641 |
| 50239 | Standard | Saint Anthony | Marshall County | - |
| 50240 | Standard | Saint Charles | Madison County | 641 |
| 50241 | PO Box | Saint Marys | Warren County | - |
| 50242 | Standard | Searsboro | Poweshiek County | 641 |
| 50243 | PO Box | Sheldahl | Story County | 515 |
| 50244 | Standard | Slater | Story County | 515 |
| 50246 | Standard | Stanhope | Hamilton County | 515 |
| 50247 | Standard | State Center | Marshall County | 641 |
| 50248 | Standard | Story City | Story County | 515 |
| 50249 | Standard | Stratford | Hamilton County | 515 |
| 50250 | Standard | Stuart | Guthrie County | 515 |
| 50251 | Standard | Sully | Jasper County | 641 |
| 50252 | Standard | Swan | Marion County | - |
| 50254 | Standard | Thayer | Union County | 641 |
| 50255 | PO Box | Thornburg | Keokuk County | - |
| 50256 | Standard | Tracy | Marion County | - |
| 50257 | Standard | Truro | Madison County | 641 |
| 50258 | Standard | Union | Hardin County | 641 |
| 50259 | Standard | Gifford | Hardin County | - |
| 50261 | Standard | Van Meter | Dallas County | 515 |
| 50262 | Standard | Van Wert | Decatur County | 641 |
| 50263 | Standard | Waukee | Dallas County | 515 |
| 50264 | Standard | Weldon | Decatur County | 641 |
| 50265 | Standard | West Des Moines, W Des Moines, Wdm | Polk County | 515 |
| 50266 | Standard | West Des Moines, Wdm | Polk County | 515 |
| 50268 | Standard | What Cheer | Keokuk County | 641 |
| 50269 | PO Box | Whitten | Hardin County | - |
| 50271 | Standard | Williams | Hamilton County | 515 |
| 50272 | PO Box | Williamson | Lucas County | 641 |
| 50273 | Standard | Winterset | Madison County | 515 |
| 50274 | Standard | Wiota | Cass County | 712 |
| 50275 | Standard | Woodburn | Clarke County | 641 |
| 50276 | Standard | Woodward | Dallas County | 515 |
| 50277 | Standard | Yale | Guthrie County | 641 |
| 50278 | Standard | Zearing | Story County | 641 |
| 50301 | PO Box | Des Moines | Polk County | 515 |
| 50302 | PO Box | Des Moines | Polk County | 515 |
| 50303 | PO Box | Des Moines | Polk County | 515 |
| 50304 | PO Box | Des Moines | Polk County | 515 |
| 50305 | PO Box | Des Moines | Polk County | 515 |
| 50306 | PO Box | Des Moines | Polk County | 515 |
| 50307 | Standard | Des Moines | Polk County | 515 |
| 50308 | Standard | Des Moines | Polk County | 515 |
| 50309 | Standard | Des Moines | Polk County | 515 |
| 50310 | Standard | Des Moines, Beaverdale | Polk County | 515 |
| 50311 | Standard | Des Moines | Polk County | 515 |
| 50312 | Standard | Des Moines | Polk County | 515 |
| 50313 | Standard | Des Moines | Polk County | 515 |
| 50314 | Standard | Des Moines | Polk County | 515 |
| 50315 | Standard | Des Moines | Polk County | 515 |
| 50316 | Standard | Des Moines | Polk County | 515 |
| 50317 | Standard | Des Moines, Pleasant Hill | Polk County | 515 |
| 50318 | PO Box | Des Moines | Polk County | 515 |
| 50319 | Standard | Des Moines | Polk County | 515 |
| 50320 | Standard | Des Moines | Polk County | 515 |
| 50321 | Standard | Des Moines | Polk County | 515 |
| 50322 | Standard | Urbandale, Des Moines | Polk County | 515 |
| 50323 | Standard | Urbandale, Des Moines | Dallas County | 515 |
| 50324 | Standard | Windsor Heights, Clive, Des Moines, Windsor Hts | Polk County | 515 |
| 50325 | Standard | Clive, Des Moines | Polk County | 515 |
| 50327 | Standard | Pleasant Hill, Des Moines | Polk County | 515 |
| 50328 | Unique | Des Moines | Polk County | 515 |
| 50329 | Unique | Des Moines | Polk County | 515 |
| 50330 | Unique | Des Moines | Polk County | 515 |
| 50331 | Unique | Des Moines | Polk County | 515 |
| 50332 | Unique | Des Moines | Polk County | 515 |
| 50333 | PO Box | Des Moines | Polk County | 515 |
| 50334 | Unique | Des Moines | Polk County | 515 |
| 50335 | Unique | Des Moines | Polk County | 515 |
| 50336 | Unique | Des Moines | Polk County | 515 |
| 50339 | Unique | Des Moines | Polk County | 515 |
| 50340 | PO Box | Des Moines | Polk County | 515 |
| 50347 | Unique | Des Moines | Polk County | 515 |
| 50359 | Unique | Des Moines | Polk County | 515 |
| 50360 | Unique | Des Moines | Polk County | 515 |
| 50361 | Unique | Des Moines | Polk County | 515 |
| 50362 | Unique | Des Moines | Polk County | 515 |
| 50363 | Unique | Des Moines | Polk County | 515 |
| 50364 | Unique | Des Moines | Polk County | 515 |
| 50367 | Unique | Des Moines | Polk County | 515 |
| 50368 | PO Box | Des Moines | Polk County | 515 |
| 50369 | Unique | Des Moines | Polk County | 515 |
| 50380 | Unique | Des Moines | Polk County | 515 |
| 50381 | Unique | Des Moines | Polk County | 515 |
| 50391 | Unique | Des Moines, Urbandale | Polk County | 515 |
| 50392 | Unique | Des Moines | Polk County | 515 |
| 50393 | PO Box | Des Moines | Polk County | 515 |
| 50394 | PO Box | Des Moines | Polk County | 515 |
| 50395 | Standard | Des Moines, Urbandale | Polk County | 515 |
| 50396 | Unique | Des Moines | Polk County | 515 |
| 50397 | Unique | Des Moines | Polk County | 515 |
| 50398 | Unique | Urbandale, West Des Moines | Polk County | 515 |
| 50401 | Standard | Mason City | Cerro Gordo County | 641 |
| 50402 | PO Box | Mason City | Cerro Gordo County | 641 |
| 50420 | Standard | Alexander | Franklin County | 641 |
| 50421 | Standard | Belmond | Wright County | 641 |
| 50423 | Standard | Britt | Hancock County | 641 |
| 50424 | Standard | Buffalo Center, Buffalo Ctr | Winnebago County | 641 |
| 50426 | Standard | Carpenter | Mitchell County | 641 |
| 50427 | Standard | Chapin | Franklin County | - |
| 50428 | Standard | Clear Lake | Cerro Gordo County | 641 |
| 50430 | Standard | Corwith | Hancock County | 515 |
| 50431 | PO Box | Coulter | Franklin County | - |
| 50432 | PO Box | Crystal Lake | Hancock County | - |
| 50433 | Standard | Dougherty | Cerro Gordo County | 641 |
| 50434 | Standard | Fertile | Worth County | 641 |
| 50435 | Standard | Floyd | Floyd County | 641 |
| 50436 | Standard | Forest City | Winnebago County | 641 |
| 50438 | Standard | Garner | Hancock County | 641 |
| 50439 | Standard | Goodell | Hancock County | 641 |
| 50440 | Standard | Grafton | Worth County | 641 |
| 50441 | Standard | Hampton, Hansell | Franklin County | 641 |
| 50444 | Standard | Hanlontown | Worth County | 641 |
| 50446 | Standard | Joice | Worth County | 641 |
| 50447 | Standard | Kanawha | Hancock County | 641 |
| 50448 | Standard | Kensett | Worth County | 641 |
| 50449 | Standard | Klemme | Hancock County | 641 |
| 50450 | Standard | Lake Mills | Winnebago County | 641 |
| 50451 | Standard | Lakota | Kossuth County | 641,515 |
| 50452 | Standard | Latimer | Franklin County | 641 |
| 50453 | Standard | Leland | Winnebago County | 641 |
| 50454 | Standard | Little Cedar | Mitchell County | 641 |
| 50455 | Standard | Mc Intire | Mitchell County | 641 |
| 50456 | Standard | Manly | Worth County | 641 |
| 50457 | Standard | Meservey | Cerro Gordo County | 641 |
| 50458 | Standard | Nora Springs | Floyd County | 641 |
| 50459 | Standard | Northwood | Worth County | 641 |
| 50460 | Standard | Orchard | Mitchell County | 641 |
| 50461 | Standard | Osage, Mitchell | Mitchell County | 641 |
| 50464 | Standard | Plymouth | Cerro Gordo County | 641 |
| 50465 | PO Box | Rake | Winnebago County | 641 |
| 50466 | Standard | Riceville | Mitchell County | 641 |
| 50467 | Standard | Rock Falls | Cerro Gordo County | 641 |
| 50468 | Standard | Rockford | Floyd County | 641 |
| 50469 | Standard | Rockwell | Cerro Gordo County | 641 |
| 50470 | Standard | Rowan | Wright County | 641 |
| 50471 | Standard | Rudd | Floyd County | 641 |
| 50472 | Standard | Saint Ansgar | Mitchell County | 641 |
| 50473 | Standard | Scarville | Winnebago County | 641 |
| 50475 | Standard | Sheffield | Franklin County | 641 |
| 50476 | Standard | Stacyville | Mitchell County | 641 |
| 50477 | Standard | Swaledale | Cerro Gordo County | 641 |
| 50478 | Standard | Thompson | Winnebago County | 641 |
| 50479 | Standard | Thornton | Cerro Gordo County | 641 |
| 50480 | Standard | Titonka | Kossuth County | 515 |
| 50481 | Standard | Toeterville | Mitchell County | 641 |
| 50482 | Standard | Ventura | Cerro Gordo County | 641 |
| 50483 | Standard | Wesley | Kossuth County | 515 |
| 50484 | Standard | Woden | Hancock County | 641 |
| 50501 | Standard | Fort Dodge | Webster County | 515 |
| 50510 | Standard | Albert City | Buena Vista County | 712 |
| 50511 | Standard | Algona | Kossuth County | 515 |
| 50514 | Standard | Armstrong | Emmet County | 712 |
| 50515 | Standard | Ayrshire | Palo Alto County | 712 |
| 50516 | Standard | Badger | Webster County | 515 |
| 50517 | Standard | Bancroft | Kossuth County | 515 |
| 50518 | Standard | Barnum | Webster County | 515 |
| 50519 | Standard | Bode | Humboldt County | - |
| 50520 | Standard | Bradgate | Humboldt County | 515 |
| 50521 | PO Box | Burnside | Webster County | 515 |
| 50522 | Standard | Burt | Kossuth County | 515 |
| 50523 | Standard | Callender | Webster County | 515 |
| 50524 | Standard | Clare | Webster County | 515 |
| 50525 | Standard | Clarion | Wright County | 515 |
| 50526 | Unique | Clarion | Wright County | 515 |
| 50527 | Standard | Curlew | Palo Alto County | 712 |
| 50528 | Standard | Cylinder | Palo Alto County | 712 |
| 50529 | Standard | Dakota City | Humboldt County | 515 |
| 50530 | Standard | Dayton | Webster County | 515 |
| 50531 | Standard | Dolliver | Emmet County | 712 |
| 50532 | Standard | Duncombe | Webster County | 515 |
| 50533 | Standard | Eagle Grove | Wright County | 515 |
| 50535 | Standard | Early | Sac County | 712 |
| 50536 | Standard | Emmetsburg | Palo Alto County | 712 |
| 50538 | Standard | Farnhamville, Rinard | Calhoun County | 515 |
| 50539 | Standard | Fenton | Kossuth County | 515 |
| 50540 | Standard | Fonda | Pocahontas County | 712 |
| 50541 | Standard | Gilmore City | Humboldt County | 515 |
| 50542 | Standard | Goldfield | Wright County | 515 |
| 50543 | Standard | Gowrie | Webster County | 515 |
| 50544 | Standard | Harcourt | Webster County | 515 |
| 50545 | Standard | Hardy | Humboldt County | 515 |
| 50546 | Standard | Havelock | Pocahontas County | 712 |
| 50548 | Standard | Humboldt | Humboldt County | 515 |
| 50551 | Standard | Jolley | Calhoun County | - |
| 50552 | PO Box | Knierim | Calhoun County | - |
| 50554 | Standard | Laurens | Pocahontas County | 712 |
| 50556 | Standard | Ledyard | Kossuth County | 515,641 |
| 50557 | Standard | Lehigh | Webster County | 515 |
| 50558 | Standard | Livermore | Humboldt County | 515 |
| 50559 | Standard | Lone Rock | Kossuth County | 515 |
| 50560 | Standard | Lu Verne | Kossuth County | 515 |
| 50561 | Standard | Lytton | Sac County | 712 |
| 50562 | Standard | Mallard | Palo Alto County | 712 |
| 50563 | Standard | Manson | Calhoun County | 515,712 |
| 50565 | Standard | Marathon | Buena Vista County | 712 |
| 50566 | Standard | Moorland | Webster County | 515 |
| 50567 | Standard | Nemaha | Sac County | 712 |
| 50568 | Standard | Newell | Buena Vista County | 712 |
| 50569 | Standard | Otho | Webster County | 515 |
| 50570 | Standard | Ottosen | Humboldt County | 515 |
| 50571 | Standard | Palmer | Pocahontas County | 712 |
| 50573 | PO Box | Plover | Pocahontas County | 712 |
| 50574 | Standard | Pocahontas | Pocahontas County | 712 |
| 50575 | Standard | Pomeroy, Knoke | Calhoun County | 712 |
| 50576 | Standard | Rembrandt | Buena Vista County | 712 |
| 50577 | Standard | Renwick | Humboldt County | 515 |
| 50578 | Standard | Ringsted | Emmet County | 712 |
| 50579 | Standard | Rockwell City | Calhoun County | 712 |
| 50581 | Standard | Rolfe | Pocahontas County | 712 |
| 50582 | Standard | Rutland | Humboldt County | 515 |
| 50583 | Standard | Sac City | Sac County | 712 |
| 50585 | Standard | Sioux Rapids | Buena Vista County | 712 |
| 50586 | Standard | Somers | Calhoun County | 515 |
| 50588 | Standard | Storm Lake, Lakeside | Buena Vista County | 712 |
| 50590 | Standard | Swea City | Kossuth County | 515 |
| 50591 | Standard | Thor | Humboldt County | 515 |
| 50592 | PO Box | Truesdale | Buena Vista County | 712 |
| 50593 | PO Box | Varina | Pocahontas County | 712 |
| 50594 | Standard | Vincent | Webster County | 515 |
| 50595 | Standard | Webster City | Hamilton County | 515 |
| 50597 | Standard | West Bend | Palo Alto County | 515 |
| 50598 | Standard | Whittemore | Kossuth County | 515 |
| 50599 | Standard | Woolstock | Wright County | 515 |
| 50601 | Standard | Ackley | Hardin County | 641 |
| 50602 | Standard | Allison | Butler County | 319 |
| 50603 | Standard | Alta Vista | Chickasaw County | 641 |
| 50604 | Standard | Aplington | Butler County | 319 |
| 50605 | Standard | Aredale | Butler County | 641 |
| 50606 | Standard | Arlington | Fayette County | 563 |
| 50607 | Standard | Aurora | Buchanan County | 319 |
| 50608 | Standard | Austinville | Butler County | - |
| 50609 | Standard | Beaman | Grundy County | 641 |
| 50611 | Standard | Bristow | Butler County | 641 |
| 50612 | Standard | Buckingham | Tama County | - |
| 50613 | Standard | Cedar Falls | Black Hawk County | 319 |
| 50614 | Unique | Cedar Falls | Black Hawk County | 319 |
| 50616 | Standard | Charles City | Floyd County | 641 |
| 50619 | Standard | Clarksville | Butler County | 319 |
| 50620 | Standard | Colwell | Floyd County | 641 |
| 50621 | Standard | Conrad | Grundy County | 641 |
| 50622 | Standard | Denver | Bremer County | 319 |
| 50623 | PO Box | Dewar | Black Hawk County | 319 |
| 50624 | Standard | Dike | Grundy County | 319 |
| 50625 | Standard | Dumont | Butler County | 641 |
| 50626 | Standard | Dunkerton | Black Hawk County | 319 |
| 50627 | Standard | Eldora | Hardin County | 641 |
| 50628 | Standard | Elma | Howard County | 641 |
| 50629 | Standard | Fairbank | Buchanan County | 319 |
| 50630 | Standard | Fredericksburg, Fredericksbrg | Chickasaw County | 319,563 |
| 50631 | PO Box | Frederika | Bremer County | - |
| 50632 | Standard | Garwin, Green Mountain, Green Mtn | Tama County | 641 |
| 50633 | Standard | Geneva | Franklin County | - |
| 50634 | PO Box | Gilbertville | Black Hawk County | 319 |
| 50635 | Standard | Gladbrook | Tama County | 641 |
| 50636 | Standard | Greene | Butler County | 641 |
| 50638 | Standard | Grundy Center | Grundy County | 319 |
| 50641 | Standard | Hazleton | Buchanan County | 319 |
| 50642 | Standard | Holland | Grundy County | - |
| 50643 | Standard | Hudson, Voorhies | Black Hawk County | 319 |
| 50644 | Standard | Independence | Buchanan County | 319 |
| 50645 | Standard | Ionia | Chickasaw County | - |
| 50647 | Standard | Janesville | Bremer County | 319 |
| 50648 | Standard | Jesup | Buchanan County | 319 |
| 50649 | Standard | Kesley | Butler County | - |
| 50650 | Standard | Lamont | Buchanan County | 563 |
| 50651 | Standard | La Porte City | Black Hawk County | 319 |
| 50652 | PO Box | Lincoln | Tama County | - |
| 50653 | Standard | Marble Rock | Floyd County | 641 |
| 50654 | Standard | Masonville | Delaware County | - |
| 50655 | Standard | Maynard | Fayette County | 563 |
| 50657 | Standard | Morrison | Grundy County | - |
| 50658 | Standard | Nashua | Chickasaw County | 641 |
| 50659 | Standard | New Hampton, N Washington, North Washington | Chickasaw County | 641 |
| 50660 | Standard | New Hartford | Butler County | 319 |
| 50661 | PO Box | North Washington, N Washington | Chickasaw County | - |
| 50662 | Standard | Oelwein | Fayette County | 319 |
| 50664 | Standard | Oran | Fayette County | - |
| 50665 | Standard | Parkersburg | Butler County | 319 |
| 50666 | Standard | Plainfield | Bremer County | 319 |
| 50667 | Standard | Raymond | Black Hawk County | 319 |
| 50668 | Standard | Readlyn | Bremer County | 319 |
| 50669 | Standard | Reinbeck | Grundy County | 319 |
| 50670 | Standard | Shell Rock | Butler County | 319 |
| 50671 | Standard | Stanley | Buchanan County | - |
| 50672 | Standard | Steamboat Rock, Steamboat Rk | Hardin County | 641 |
| 50673 | PO Box | Stout | Grundy County | - |
| 50674 | Standard | Sumner | Bremer County | 563 |
| 50675 | Standard | Traer | Tama County | 319 |
| 50676 | Standard | Tripoli | Bremer County | 319 |
| 50677 | Standard | Waverly, Bremer | Bremer County | 319 |
| 50680 | Standard | Wellsburg | Grundy County | 641 |
| 50681 | Standard | Westgate | Fayette County | 319 |
| 50682 | Standard | Winthrop | Buchanan County | 319 |
| 50701 | Standard | Waterloo | Black Hawk County | 319 |
| 50702 | Standard | Waterloo, Washburn | Black Hawk County | 319 |
| 50703 | Standard | Waterloo | Black Hawk County | 319 |
| 50704 | PO Box | Waterloo | Black Hawk County | 319 |
| 50706 | Standard | Waterloo, Washburn | Black Hawk County | 319 |
| 50707 | Standard | Evansdale, Elk Run Heights, Elk Run Hgts, Waterloo | Black Hawk County | 319 |
| 50801 | Standard | Creston | Union County | 641 |
| 50830 | Standard | Afton | Union County | 641 |
| 50831 | PO Box | Arispe | Union County | 641 |
| 50833 | Standard | Bedford | Taylor County | 712 |
| 50835 | Standard | Benton | Ringgold County | 641 |
| 50836 | Standard | Blockton, Maloy | Taylor County | 641 |
| 50837 | Standard | Bridgewater | Adair County | 641 |
| 50839 | Standard | Carbon | Adams County | - |
| 50840 | Standard | Clearfield | Taylor County | 641 |
| 50841 | Standard | Corning | Adams County | 641 |
| 50842 | Standard | Cromwell | Union County | 641 |
| 50843 | Standard | Cumberland | Cass County | 712 |
| 50845 | Standard | Diagonal | Ringgold County | 641 |
| 50846 | Standard | Fontanelle | Adair County | 641 |
| 50847 | PO Box | Grant | Montgomery County | 712 |
| 50848 | Standard | Gravity | Taylor County | 712 |
| 50849 | Standard | Greenfield | Adair County | 641 |
| 50851 | Standard | Lenox, Kent | Taylor County | 641 |
| 50853 | Standard | Massena | Cass County | 712 |
| 50854 | Standard | Mount Ayr | Ringgold County | 641 |
| 50857 | Standard | Nodaway | Adams County | 712 |
| 50858 | Standard | Orient | Adair County | 641 |
| 50859 | Standard | Prescott | Adams County | 641 |
| 50860 | Standard | Redding, Delphos | Ringgold County | 641 |
| 50861 | Standard | Shannon City | Union County | 641 |
| 50862 | Standard | Sharpsburg | Taylor County | 641 |
| 50863 | Standard | Tingley | Ringgold County | 641 |
| 50864 | Standard | Villisca | Montgomery County | 712 |
| 50936 | Unique | Des Moines | Polk County | 515 |
| 50940 | Unique | Des Moines | Polk County | 515 |
| 50947 | Unique | Des Moines | Polk County | 515 |
| 50950 | Unique | Des Moines | Polk County | 515 |
| 50980 | Unique | Des Moines | Polk County | 515 |
| 50981 | Unique | Des Moines | Polk County | 515 |
| 50982 | Unique | Des Moines | 515 | |
| 50983 | Unique | Des Moines | 515 | |
| 51001 | Standard | Akron | Plymouth County | 712 |
| 51002 | Standard | Alta | Buena Vista County | 712 |
| 51003 | Standard | Alton | Sioux County | 712 |
| 51004 | Standard | Anthon | Woodbury County | 712 |
| 51005 | Standard | Aurelia | Cherokee County | 712 |
| 51006 | Standard | Battle Creek | Ida County | 712 |
| 51007 | Standard | Bronson | Woodbury County | 712 |
| 51008 | PO Box | Brunsville | Plymouth County | 712 |
| 51010 | Standard | Castana | Monona County | 712 |
| 51011 | Standard | Chatsworth | Sioux County | 712 |
| 51012 | Standard | Cherokee | Cherokee County | 712 |
| 51014 | Standard | Cleghorn | Cherokee County | 712 |
| 51015 | PO Box | Climbing Hill | Woodbury County | 712 |
| 51016 | Standard | Correctionville, Correctionvle | Woodbury County | 712 |
| 51018 | Standard | Cushing | Woodbury County | 712 |
| 51019 | Standard | Danbury | Woodbury County | 712 |
| 51020 | Standard | Galva | Ida County | 712 |
| 51022 | Standard | Granville | Sioux County | 712 |
| 51023 | Standard | Hawarden | Sioux County | 712 |
| 51024 | Standard | Hinton | Plymouth County | 712 |
| 51025 | Standard | Holstein | Ida County | 712 |
| 51026 | Standard | Hornick | Woodbury County | 712 |
| 51027 | Standard | Ireton | Sioux County | 712 |
| 51028 | Standard | Kingsley | Plymouth County | 712 |
| 51029 | Standard | Larrabee | Cherokee County | 712 |
| 51030 | Standard | Lawton | Woodbury County | 712 |
| 51031 | Standard | Le Mars | Plymouth County | 712 |
| 51033 | Standard | Linn Grove | Buena Vista County | 712 |
| 51034 | Standard | Mapleton | Monona County | 712 |
| 51035 | Standard | Marcus | Cherokee County | 712 |
| 51036 | Standard | Maurice | Sioux County | 712 |
| 51037 | Standard | Meriden | Cherokee County | 712 |
| 51038 | Standard | Merrill | Plymouth County | 712 |
| 51039 | Standard | Moville | Woodbury County | 712 |
| 51040 | Standard | Onawa, Turin | Monona County | 712 |
| 51041 | Standard | Orange City | Sioux County | 712 |
| 51044 | Standard | Oto | Woodbury County | 712 |
| 51045 | PO Box | Oyens | Plymouth County | 712 |
| 51047 | Standard | Peterson | Clay County | 712 |
| 51048 | Standard | Pierson | Woodbury County | 712 |
| 51049 | Standard | Quimby | Cherokee County | 712 |
| 51050 | Standard | Remsen | Plymouth County | 712 |
| 51051 | Standard | Rodney | Monona County | 712 |
| 51052 | Standard | Salix | Woodbury County | 712 |
| 51053 | Standard | Schaller | Sac County | 712 |
| 51054 | Standard | Sergeant Bluff, Sergeant Blf | Woodbury County | 712 |
| 51055 | Standard | Sloan | Woodbury County | 712 |
| 51056 | Standard | Smithland | Woodbury County | 712 |
| 51060 | Standard | Ute | Monona County | 712 |
| 51061 | Standard | Washta | Cherokee County | 712 |
| 51062 | Standard | Westfield | Plymouth County | 712 |
| 51063 | Standard | Whiting | Monona County | 712 |
| 51101 | Standard | Sioux City | Woodbury County | 712 |
| 51102 | PO Box | Sioux City | Woodbury County | 712 |
| 51103 | Standard | Sioux City | Woodbury County | 712 |
| 51104 | Standard | Sioux City | Woodbury County | 712 |
| 51105 | Standard | Sioux City | Woodbury County | 712 |
| 51106 | Standard | Sioux City | Woodbury County | 712 |
| 51108 | Standard | Sioux City | Woodbury County | 712 |
| 51109 | Standard | Sioux City | Woodbury County | 712 |
| 51111 | Standard | Sioux City | Woodbury County | 712 |
| 51230 | Standard | Alvord | Lyon County | 712 |
| 51232 | Standard | Ashton | Osceola County | 712 |
| 51234 | Standard | Boyden | Sioux County | 712 |
| 51235 | Standard | Doon | Lyon County | 712 |
| 51237 | Standard | George | Lyon County | 712 |
| 51238 | Standard | Hospers | Sioux County | 712 |
| 51239 | Standard | Hull | Sioux County | 712 |
| 51240 | Standard | Inwood | Lyon County | 712 |
| 51241 | Standard | Larchwood | Lyon County | 712 |
| 51242 | PO Box | Lester | Lyon County | 712 |
| 51243 | Standard | Little Rock | Lyon County | 712 |
| 51244 | PO Box | Matlock | Sioux County | 712 |
| 51246 | Standard | Rock Rapids | Lyon County | 712 |
| 51247 | Standard | Rock Valley | Sioux County | 712 |
| 51249 | Standard | Sibley | Osceola County | 712 |
| 51250 | Standard | Sioux Center | Sioux County | 712 |
| 51301 | Standard | Spencer | Clay County | 712 |
| 51331 | Standard | Arnolds Park | Dickinson County | 712 |
| 51333 | Standard | Dickens | Clay County | 712 |
| 51334 | Standard | Estherville, Gruver | Emmet County | 712 |
| 51338 | Standard | Everly | Clay County | 712 |
| 51340 | PO Box | Fostoria | Clay County | 712 |
| 51341 | PO Box | Gillett Grove | Clay County | 712 |
| 51342 | Standard | Graettinger | Palo Alto County | 712 |
| 51343 | Standard | Greenville | Clay County | 712 |
| 51344 | PO Box | Gruver | Emmet County | 712 |
| 51345 | Standard | Harris | Osceola County | 712 |
| 51347 | Standard | Lake Park | Dickinson County | 712 |
| 51350 | Standard | Melvin | Osceola County | 712 |
| 51351 | Standard | Milford | Dickinson County | 712 |
| 51354 | Standard | Ocheyedan, Allendorf, May City | Osceola County | 712 |
| 51355 | Standard | Okoboji | Dickinson County | 712 |
| 51357 | Standard | Royal, Rossie | Clay County | 712 |
| 51358 | Standard | Ruthven | Palo Alto County | 712 |
| 51360 | Standard | Spirit Lake, Orleans | Dickinson County | 712 |
| 51363 | PO Box | Superior | Dickinson County | 712 |
| 51364 | Standard | Terril | Dickinson County | 712 |
| 51365 | Standard | Wallingford | Emmet County | 712 |
| 51366 | Standard | Webb | Clay County | 712 |
| 51401 | Standard | Carroll | Carroll County | 712 |
| 51430 | Standard | Arcadia | Carroll County | 712 |
| 51431 | Standard | Arthur | Ida County | 712 |
| 51432 | PO Box | Aspinwall | Crawford County | 712 |
| 51433 | Standard | Auburn, Yetter | Sac County | 712 |
| 51436 | Standard | Breda | Carroll County | 712 |
| 51439 | Standard | Charter Oak | Crawford County | 712 |
| 51440 | Standard | Dedham | Carroll County | 712 |
| 51441 | Standard | Deloit | Crawford County | 712 |
| 51442 | Standard | Denison | Crawford County | 712 |
| 51443 | Standard | Glidden | Carroll County | 712 |
| 51444 | PO Box | Halbur | Carroll County | 712 |
| 51445 | Standard | Ida Grove | Ida County | 712 |
| 51446 | Standard | Irwin | Shelby County | 712 |
| 51447 | Standard | Kirkman | Shelby County | 712 |
| 51448 | Standard | Kiron | Crawford County | 712 |
| 51449 | Standard | Lake City | Calhoun County | 712 |
| 51450 | Standard | Lake View, Carnarvon | Sac County | 712 |
| 51451 | PO Box | Lanesboro | Carroll County | 712 |
| 51452 | PO Box | Lidderdale | Carroll County | 712 |
| 51453 | Standard | Lohrville | Calhoun County | 712 |
| 51454 | Standard | Manilla | Crawford County | 712 |
| 51455 | Standard | Manning | Carroll County | 712 |
| 51458 | Standard | Odebolt | Sac County | 712 |
| 51459 | PO Box | Ralston | Carroll County | - |
| 51460 | PO Box | Ricketts | Crawford County | 712 |
| 51461 | Standard | Schleswig | Crawford County | 712 |
| 51462 | Standard | Scranton | Greene County | 712 |
| 51463 | Standard | Templeton | Carroll County | 712 |
| 51465 | Standard | Vail | Crawford County | 712 |
| 51466 | Standard | Wall Lake | Sac County | 712 |
| 51467 | Standard | Westside | Crawford County | 712 |
| 51501 | Standard | Council Bluffs, Council Blfs, Manawa | Pottawattamie County | 712 |
| 51502 | PO Box | Council Bluffs, Council Blfs | Pottawattamie County | 712 |
| 51503 | Standard | Council Bluffs, Council Blfs | Pottawattamie County | 712 |
| 51510 | Standard | Carter Lake | Pottawattamie County | 712 |
| 51520 | Standard | Arion | Crawford County | 712 |
| 51521 | Standard | Avoca | Pottawattamie County | 712 |
| 51523 | Standard | Blencoe | Monona County | 712 |
| 51525 | Standard | Carson | Pottawattamie County | 712 |
| 51526 | Standard | Crescent | Pottawattamie County | 712 |
| 51527 | Standard | Defiance | Shelby County | 712 |
| 51528 | Standard | Dow City | Crawford County | 712 |
| 51529 | Standard | Dunlap | Harrison County | 712 |
| 51530 | Standard | Earling | Shelby County | 712 |
| 51531 | Standard | Elk Horn | Shelby County | 712 |
| 51532 | Standard | Elliott | Montgomery County | 712 |
| 51533 | Standard | Emerson | Mills County | 712 |
| 51534 | Standard | Glenwood | Mills County | 712 |
| 51535 | Standard | Griswold | Cass County | 712 |
| 51536 | Standard | Hancock | Pottawattamie County | 712 |
| 51537 | Standard | Harlan, Tennant | Shelby County | 712 |
| 51540 | Standard | Hastings | Mills County | 712 |
| 51541 | Standard | Henderson | Mills County | 712 |
| 51542 | Standard | Honey Creek | Pottawattamie County | 712 |
| 51543 | Standard | Kimballton | Audubon County | 712 |
| 51544 | Standard | Lewis | Cass County | 712 |
| 51545 | Standard | Little Sioux | Harrison County | 712 |
| 51546 | Standard | Logan | Harrison County | 712 |
| 51548 | Standard | Mc Clelland | Pottawattamie County | 712 |
| 51549 | Standard | Macedonia | Pottawattamie County | 712 |
| 51550 | Standard | Magnolia | Harrison County | 712 |
| 51551 | Standard | Malvern | Mills County | 712 |
| 51552 | Standard | Marne | Cass County | 712 |
| 51553 | Standard | Minden | Pottawattamie County | 712 |
| 51554 | PO Box | Mineola | Mills County | 712 |
| 51555 | Standard | Missouri Valley, Missouri Vly, Mo Valley | Harrison County | 712 |
| 51556 | Standard | Modale | Harrison County | 712 |
| 51557 | Standard | Mondamin | Harrison County | 712 |
| 51558 | Standard | Moorhead | Monona County | 712 |
| 51559 | Standard | Neola | Pottawattamie County | 712 |
| 51560 | Standard | Oakland | Pottawattamie County | 712 |
| 51561 | Standard | Pacific Junction, Pacific Jct | Mills County | 712 |
| 51562 | Standard | Panama | Shelby County | 712 |
| 51563 | Standard | Persia | Harrison County | 712 |
| 51564 | Standard | Pisgah | Harrison County | 712 |
| 51565 | Standard | Portsmouth | Shelby County | 712 |
| 51566 | Standard | Red Oak | Montgomery County | 712 |
| 51570 | Standard | Shelby | Shelby County | 712 |
| 51571 | Standard | Silver City | Mills County | 712 |
| 51572 | Standard | Soldier | Monona County | 712 |
| 51573 | Standard | Stanton | Montgomery County | 712 |
| 51575 | Standard | Treynor | Pottawattamie County | 712 |
| 51576 | Standard | Underwood | Pottawattamie County | 712 |
| 51577 | Standard | Walnut | Pottawattamie County | 712 |
| 51578 | PO Box | Westphalia | Shelby County | 712 |
| 51579 | Standard | Woodbine | Harrison County | 712 |
| 51591 | PO Box | Red Oak | Montgomery County | 712 |
| 51593 | PO Box | Harlan | Shelby County | 712 |
| 51601 | Standard | Shenandoah | Page County | 712 |
| 51602 | Unique | Shenandoah | Page County | 712 |
| 51603 | Unique | Shenandoah | Page County | 712 |
| 51630 | Standard | Blanchard | Page County | 712 |
| 51631 | Standard | Braddyville | Page County | 712 |
| 51632 | Standard | Clarinda | Page County | 712 |
| 51636 | Standard | Coin | Page County | 712 |
| 51637 | PO Box | College Springs, College Sprgs | Page County | 712 |
| 51638 | Standard | Essex | Page County | 712 |
| 51639 | Standard | Farragut | Fremont County | 712 |
| 51640 | Standard | Hamburg | Fremont County | 712 |
| 51645 | Standard | Imogene | Fremont County | 712 |
| 51646 | Standard | New Market | Taylor County | 712 |
| 51647 | Standard | Northboro | Page County | 712 |
| 51648 | Standard | Percival | Fremont County | 712 |
| 51649 | Standard | Randolph | Fremont County | 712 |
| 51650 | Standard | Riverton | Fremont County | 712 |
| 51651 | PO Box | Shambaugh | Page County | 712 |
| 51652 | Standard | Sidney | Fremont County | 712 |
| 51653 | Standard | Tabor | Fremont County | 712 |
| 51654 | Standard | Thurman, Bartlett | Fremont County | 712 |
| 51656 | PO Box | Yorktown | Page County | 712 |
| 52001 | Standard | Dubuque | Dubuque County | 563 |
| 52002 | Standard | Dubuque, Asbury | Dubuque County | 563 |
| 52003 | Standard | Dubuque | Dubuque County | 563 |
| 52004 | PO Box | Dubuque | Dubuque County | 563 |
| 52030 | PO Box | Andrew | Jackson County | 563 |
| 52031 | Standard | Bellevue | Jackson County | 563 |
| 52032 | Standard | Bernard | Dubuque County | 563 |
| 52033 | Standard | Cascade | Dubuque County | 563 |
| 52035 | Standard | Colesburg | Delaware County | 563 |
| 52036 | Standard | Delaware | Delaware County | 563 |
| 52037 | Standard | Delmar | Clinton County | 563 |
| 52038 | Standard | Dundee | Delaware County | 563 |
| 52039 | Standard | Durango | Dubuque County | 563 |
| 52040 | Standard | Dyersville | Dubuque County | 563 |
| 52041 | Standard | Earlville | Delaware County | 563 |
| 52042 | Standard | Edgewood, Littleport | Clayton County | 563 |
| 52043 | Standard | Elkader | Clayton County | 563 |
| 52044 | Standard | Elkport | Clayton County | 563 |
| 52045 | Standard | Epworth | Dubuque County | 563 |
| 52046 | Standard | Farley | Dubuque County | 563 |
| 52047 | Standard | Farmersburg | Clayton County | 563 |
| 52048 | Standard | Garber | Clayton County | 563 |
| 52049 | Standard | Garnavillo, Clayton | Clayton County | 563 |
| 52050 | Standard | Greeley | Delaware County | 563 |
| 52052 | Standard | Guttenberg | Clayton County | 563 |
| 52053 | Standard | Holy Cross | Dubuque County | 563 |
| 52054 | Standard | La Motte | Jackson County | 563 |
| 52056 | PO Box | Luxemburg | Dubuque County | 563 |
| 52057 | Standard | Manchester | Delaware County | 563 |
| 52060 | Standard | Maquoketa | Jackson County | 563 |
| 52064 | Standard | Miles, Green Island | Jackson County | 563 |
| 52065 | Standard | New Vienna | Dubuque County | 563 |
| 52066 | Standard | North Buena Vista, N Buena Vista | Clayton County | 563 |
| 52068 | Standard | Peosta | Dubuque County | 563 |
| 52069 | Standard | Preston | Jackson County | 563 |
| 52070 | Standard | Sabula | Jackson County | 563 |
| 52071 | PO Box | Saint Donatus | Jackson County | 563 |
| 52072 | Standard | Saint Olaf | Clayton County | 563 |
| 52073 | Standard | Sherrill | Dubuque County | 563 |
| 52074 | Standard | Spragueville | Jackson County | 563 |
| 52075 | PO Box | Springbrook | Jackson County | 563 |
| 52076 | Standard | Strawberry Point, Strawberry Pt | Clayton County | 563 |
| 52077 | Standard | Volga | Clayton County | 563 |
| 52078 | Standard | Worthington | Dubuque County | 563 |
| 52079 | Standard | Zwingle | Jackson County | 563 |
| 52099 | Unique | Dubuque | Dubuque County | 563 |
| 52101 | Standard | Decorah | Winneshiek County | 563 |
| 52132 | Standard | Calmar | Winneshiek County | 563 |
| 52133 | Standard | Castalia | Winneshiek County | 563 |
| 52134 | Standard | Chester | Howard County | 563,641 |
| 52135 | Standard | Clermont | Fayette County | 563 |
| 52136 | Standard | Cresco | Howard County | 563 |
| 52140 | Standard | Dorchester | Allamakee County | 563 |
| 52141 | Standard | Elgin | Fayette County | 563 |
| 52142 | Standard | Fayette | Fayette County | 563 |
| 52144 | Standard | Fort Atkinson, Festina | Winneshiek County | 563 |
| 52146 | Standard | Harpers Ferry | Allamakee County | 563 |
| 52147 | Standard | Hawkeye | Fayette County | 563 |
| 52149 | PO Box | Highlandville | Winneshiek County | 563 |
| 52151 | Standard | Lansing | Allamakee County | 563 |
| 52154 | Standard | Lawler | Chickasaw County | 563 |
| 52155 | Standard | Lime Springs, Saratoga | Howard County | 563 |
| 52156 | Standard | Luana | Clayton County | 563 |
| 52157 | Standard | Mc Gregor | Clayton County | 563 |
| 52158 | PO Box | Marquette | Clayton County | 563 |
| 52159 | Standard | Monona | Clayton County | 563 |
| 52160 | Standard | New Albin | Allamakee County | 563 |
| 52161 | Standard | Ossian | Winneshiek County | 563 |
| 52162 | Standard | Postville | Allamakee County | 563 |
| 52163 | PO Box | Protivin | Howard County | - |
| 52164 | Standard | Randalia | Fayette County | 563 |
| 52165 | Standard | Ridgeway | Winneshiek County | 563 |
| 52166 | PO Box | Saint Lucas | Fayette County | - |
| 52168 | PO Box | Spillville | Winneshiek County | 563 |
| 52169 | Standard | Wadena | Fayette County | 563 |
| 52170 | Standard | Waterville | Allamakee County | 563 |
| 52171 | Standard | Waucoma, Alpha, Jackson Jct, Jackson Junction | Fayette County | 563 |
| 52172 | Standard | Waukon | Allamakee County | 563 |
| 52175 | Standard | West Union, Eldorado | Fayette County | 563 |
| 52201 | Standard | Ainsworth | Washington County | 319 |
| 52202 | Standard | Alburnett | Linn County | 319 |
| 52203 | Standard | Amana, West Amana | Iowa County | 319 |
| 52204 | Unique | Amana | Iowa County | 319 |
| 52205 | Standard | Anamosa | Jones County | 319 |
| 52206 | Standard | Atkins | Benton County | 319 |
| 52207 | Standard | Baldwin | Jackson County | 563 |
| 52208 | Standard | Belle Plaine | Benton County | 319 |
| 52209 | Standard | Blairstown | Benton County | 319 |
| 52210 | Standard | Brandon | Buchanan County | 319 |
| 52211 | Standard | Brooklyn | Poweshiek County | 641 |
| 52212 | Standard | Center Junction, Center Jct | Jones County | 563 |
| 52213 | Standard | Center Point | Linn County | 319 |
| 52214 | Standard | Central City | Linn County | 319 |
| 52215 | Standard | Chelsea | Tama County | 641 |
| 52216 | Standard | Clarence | Cedar County | 563 |
| 52217 | Standard | Clutier | Tama County | 319 |
| 52218 | Standard | Coggon | Linn County | 319 |
| 52219 | Standard | Prairieburg | Linn County | 319 |
| 52220 | PO Box | Conroy | Iowa County | 319 |
| 52221 | Standard | Guernsey | Poweshiek County | 319 |
| 52222 | Standard | Deep River | Poweshiek County | 641 |
| 52223 | Standard | Delhi | Delaware County | 563 |
| 52224 | Standard | Dysart | Tama County | 319 |
| 52225 | Standard | Elberon | Tama County | 319 |
| 52227 | Standard | Ely | Linn County | 319 |
| 52228 | Standard | Fairfax | Linn County | 319 |
| 52229 | Standard | Garrison | Benton County | 319 |
| 52231 | Standard | Harper | Keokuk County | 641 |
| 52232 | Standard | Hartwick | Poweshiek County | 319 |
| 52233 | Standard | Hiawatha | Linn County | 319 |
| 52235 | PO Box | Hills | Johnson County | 319 |
| 52236 | Standard | Homestead | Iowa County | 319 |
| 52237 | Standard | Hopkinton | Delaware County | 563 |
| 52240 | Standard | Iowa City | Johnson County | 319 |
| 52241 | Standard | Coralville, Iowa City, Oakdale | Johnson County | 319 |
| 52242 | Standard | Iowa City | Johnson County | 319 |
| 52243 | Unique | Iowa City | Johnson County | 319 |
| 52244 | PO Box | Iowa City | Johnson County | 319 |
| 52245 | Standard | Iowa City | Johnson County | 319 |
| 52246 | Standard | Iowa City | Johnson County | 319 |
| 52247 | Standard | Kalona | Washington County | 319 |
| 52248 | Standard | Keota | Keokuk County | 641 |
| 52249 | Standard | Keystone | Benton County | 319 |
| 52251 | Standard | Ladora | Iowa County | 319 |
| 52252 | Standard | Langworthy | Jones County | - |
| 52253 | Standard | Lisbon | Linn County | 319 |
| 52254 | Standard | Lost Nation, Elwood | Clinton County | 563 |
| 52255 | Standard | Lowden | Cedar County | 563 |
| 52257 | Standard | Luzerne | Benton County | 319 |
| 52301 | Standard | Marengo | Iowa County | 319 |
| 52302 | Standard | Marion | Linn County | 319 |
| 52305 | Standard | Martelle | Jones County | 319 |
| 52306 | Standard | Mechanicsville, Mechanicsvlle | Cedar County | 563 |
| 52307 | PO Box | Middle Amana, Middle | Iowa County | 319 |
| 52308 | PO Box | Millersburg | Iowa County | 319 |
| 52309 | Standard | Monmouth | Jackson County | 563 |
| 52310 | Standard | Monticello, Scotch Grove | Jones County | 319 |
| 52312 | Standard | Morley | Jones County | - |
| 52313 | Standard | Mount Auburn | Benton County | 319 |
| 52314 | Standard | Mount Vernon | Linn County | 319 |
| 52315 | Standard | Newhall | Benton County | 319 |
| 52316 | Standard | North English | Iowa County | 319 |
| 52317 | Standard | North Liberty | Johnson County | 319 |
| 52318 | Standard | Norway | Benton County | 319 |
| 52319 | PO Box | Oakdale | Johnson County | 319 |
| 52320 | Standard | Olin | Jones County | 319 |
| 52321 | Standard | Onslow | Jones County | 563 |
| 52322 | Standard | Oxford | Johnson County | 319 |
| 52323 | Standard | Oxford Junction, Oxford Jct | Jones County | 563 |
| 52324 | Standard | Palo | Linn County | 319 |
| 52325 | Standard | Parnell | Iowa County | 319 |
| 52326 | Standard | Quasqueton | Buchanan County | 319 |
| 52327 | Standard | Riverside | Washington County | 319 |
| 52328 | Standard | Robins | Linn County | 319 |
| 52329 | Standard | Rowley | Buchanan County | 319 |
| 52330 | Standard | Ryan | Delaware County | 319,563 |
| 52332 | Standard | Shellsburg | Benton County | 319 |
| 52333 | Standard | Solon | Johnson County | 319 |
| 52334 | Standard | South Amana | Iowa County | 319 |
| 52335 | Standard | South English, Kinross | Keokuk County | 319 |
| 52336 | Standard | Springville, Viola, Whittier | Linn County | 319 |
| 52337 | Standard | Stanwood | Cedar County | 563 |
| 52338 | Standard | Swisher, Shueyville | Johnson County | 319 |
| 52339 | Standard | Tama | Tama County | - |
| 52340 | Standard | Tiffin | Johnson County | 319 |
| 52341 | Standard | Toddville | Linn County | 319 |
| 52342 | Standard | Toledo | Tama County | 641 |
| 52344 | PO Box | Troy Mills | Linn County | 319 |
| 52345 | Standard | Urbana | Benton County | 319 |
| 52346 | Standard | Van Horne | Benton County | 319 |
| 52347 | Standard | Victor | Iowa County | 319 |
| 52348 | PO Box | Vining | Tama County | - |
| 52349 | Standard | Vinton | Benton County | 319 |
| 52350 | PO Box | Viola | Linn County | 319 |
| 52351 | Standard | Walford | Benton County | 319 |
| 52352 | Standard | Walker | Linn County | 319 |
| 52353 | Standard | Washington | Washington County | 319 |
| 52354 | Standard | Watkins | Benton County | 319 |
| 52355 | Standard | Webster | Keokuk County | 319 |
| 52356 | Standard | Wellman | Washington County | 319 |
| 52358 | Standard | West Branch | Cedar County | 563,319 |
| 52359 | Standard | West Chester | Washington County | 319 |
| 52361 | Standard | Williamsburg | Iowa County | 319 |
| 52362 | Standard | Wyoming, Hale | Jones County | 563 |
| 52401 | Standard | Cedar Rapids | Linn County | 319 |
| 52402 | Standard | Cedar Rapids | Linn County | 319 |
| 52403 | Standard | Cedar Rapids, Bertram | Linn County | 319 |
| 52404 | Standard | Cedar Rapids | Linn County | 319 |
| 52405 | Standard | Cedar Rapids | Linn County | 319 |
| 52406 | PO Box | Cedar Rapids | Linn County | 319 |
| 52407 | PO Box | Cedar Rapids | Linn County | 319 |
| 52408 | PO Box | Cedar Rapids | Linn County | 319 |
| 52409 | PO Box | Cedar Rapids | Linn County | 319 |
| 52410 | PO Box | Cedar Rapids | Linn County | 319 |
| 52411 | Standard | Cedar Rapids | Linn County | 319 |
| 52497 | Unique | Cedar Rapids | Linn County | 319 |
| 52498 | Unique | Cedar Rapids | Linn County | 319 |
| 52499 | Unique | Cedar Rapids | Linn County | 319 |
| 52501 | Standard | Ottumwa | Wapello County | 641 |
| 52530 | Standard | Agency | Wapello County | 641 |
| 52531 | Standard | Albia, Hiteman | Monroe County | 641 |
| 52533 | Standard | Batavia | Jefferson County | 641 |
| 52534 | Standard | Beacon | Mahaska County | 641 |
| 52535 | Standard | Birmingham | Van Buren County | 319 |
| 52536 | Standard | Blakesburg | Wapello County | 641 |
| 52537 | Standard | Bloomfield, West Grove | Davis County | 641 |
| 52538 | Standard | West Grove, Bloomfield | Davis County | 641 |
| 52540 | Standard | Brighton | Washington County | 319 |
| 52542 | Standard | Cantril | Van Buren County | 319 |
| 52543 | Standard | Cedar | Mahaska County | 641 |
| 52544 | Standard | Centerville, Numa, Rathbun | Appanoose County | 641 |
| 52548 | Standard | Chillicothe | Wapello County | 641 |
| 52549 | Standard | Cincinnati | Appanoose County | 641 |
| 52550 | Standard | Delta | Keokuk County | 641 |
| 52551 | Standard | Douds | Van Buren County | 641 |
| 52552 | Standard | Drakesville | Davis County | 641 |
| 52553 | Standard | Eddyville | Wapello County | 641 |
| 52554 | Standard | Eldon | Wapello County | 641 |
| 52555 | Standard | Exline | Appanoose County | 641 |
| 52556 | Standard | Fairfield, Maharishi Vedic City, Vedic City | Jefferson County | 641 |
| 52557 | Unique | Fairfield | Jefferson County | 641 |
| 52560 | Standard | Floris | Davis County | 641 |
| 52561 | Standard | Fremont | Mahaska County | 641 |
| 52562 | PO Box | Hayesville | Keokuk County | - |
| 52563 | Standard | Hedrick | Keokuk County | 641 |
| 52565 | Standard | Keosauqua | Van Buren County | 319 |
| 52566 | Standard | Kirkville | Wapello County | 641 |
| 52567 | Standard | Libertyville | Jefferson County | 641 |
| 52568 | PO Box | Martinsburg | Keokuk County | - |
| 52569 | Standard | Melrose | Monroe County | 641 |
| 52570 | Standard | Milton | Van Buren County | 319,641 |
| 52571 | Standard | Moravia | Appanoose County | 641 |
| 52572 | Standard | Moulton | Appanoose County | 641 |
| 52573 | Standard | Mount Sterling, Mt Sterling | Van Buren County | 319 |
| 52574 | Standard | Mystic | Appanoose County | 641 |
| 52576 | Standard | Ollie | Keokuk County | 641 |
| 52577 | Standard | Oskaloosa, Keomah Village, Keomah Vlg | Mahaska County | 641 |
| 52580 | Standard | Packwood | Jefferson County | 641,319 |
| 52581 | Standard | Plano | Appanoose County | 641 |
| 52583 | Standard | Promise City | Wayne County | 641 |
| 52584 | Standard | Pulaski | Davis County | 641 |
| 52585 | Standard | Richland, Rubio | Keokuk County | 319 |
| 52586 | Standard | Rose Hill | Mahaska County | 641 |
| 52588 | Standard | Selma | Van Buren County | - |
| 52590 | Standard | Seymour | Wayne County | 641 |
| 52591 | Standard | Sigourney | Keokuk County | 641 |
| 52593 | Standard | Udell | Appanoose County | 641 |
| 52594 | Standard | Unionville | Appanoose County | 641 |
| 52595 | PO Box | University Park, University Pk | Mahaska County | 641 |
| 52601 | Standard | Burlington | Des Moines County | 319 |
| 52619 | Standard | Argyle | Lee County | 319 |
| 52620 | Standard | Bonaparte | Van Buren County | 319 |
| 52621 | Standard | Crawfordsville, Crawfordsvlle | Washington County | 319 |
| 52623 | Standard | Danville | Des Moines County | 319 |
| 52624 | PO Box | Denmark | Lee County | 319 |
| 52625 | Standard | Donnellson | Lee County | 319 |
| 52626 | Standard | Farmington | Van Buren County | 319 |
| 52627 | Standard | Fort Madison | Lee County | 319 |
| 52630 | Standard | Hillsboro | Henry County | 319 |
| 52631 | PO Box | Houghton | Lee County | 319 |
| 52632 | Standard | Keokuk | Lee County | 319 |
| 52635 | Standard | Lockridge | Jefferson County | 319 |
| 52637 | Standard | Mediapolis | Des Moines County | 319 |
| 52638 | Standard | Middletown | Des Moines County | 319 |
| 52639 | Standard | Montrose | Lee County | 319 |
| 52640 | Standard | Morning Sun | Louisa County | 319 |
| 52641 | Standard | Mount Pleasant, Mt Pleasant | Henry County | 319 |
| 52642 | PO Box | Rome | Henry County | 319 |
| 52644 | Standard | Mount Union, Mt Union | Henry County | 319 |
| 52645 | Standard | New London, Lowell | Henry County | 319 |
| 52646 | Standard | Oakville | Louisa County | 319 |
| 52647 | PO Box | Olds | Henry County | 319 |
| 52648 | PO Box | Pilot Grove | Lee County | 319 |
| 52649 | Standard | Salem | Henry County | 319 |
| 52650 | Standard | Sperry | Des Moines County | 319 |
| 52651 | Standard | Stockport | Van Buren County | 319 |
| 52652 | PO Box | Swedesburg | Henry County | 319 |
| 52653 | Standard | Wapello | Louisa County | 319 |
| 52654 | Standard | Wayland | Henry County | 319 |
| 52655 | Standard | West Burlington, W Burlington | Des Moines County | 319 |
| 52656 | Standard | West Point | Lee County | 319 |
| 52657 | Standard | Saint Paul, West Point | Lee County | 319 |
| 52658 | Standard | Wever | Lee County | 319 |
| 52659 | Standard | Winfield | Henry County | 319 |
| 52660 | Standard | Yarmouth | Des Moines County | 319 |
| 52701 | PO Box | Andover | Clinton County | 563 |
| 52720 | Standard | Atalissa | Muscatine County | 563 |
| 52721 | Standard | Bennett | Cedar County | 563 |
| 52722 | Standard | Bettendorf, Riverdale | Scott County | 563 |
| 52726 | Standard | Blue Grass | Scott County | 563 |
| 52727 | Standard | Bryant | Clinton County | 563 |
| 52728 | PO Box | Buffalo | Scott County | 563 |
| 52729 | Standard | Calamus | Clinton County | 563 |
| 52730 | Standard | Camanche | Clinton County | 563 |
| 52731 | Standard | Charlotte | Clinton County | 563 |
| 52732 | Standard | Clinton | Clinton County | 563 |
| 52733 | PO Box | Clinton | Clinton County | 563 |
| 52734 | Unique | Clinton | Clinton County | 563 |
| 52736 | Unique | Clinton | Clinton County | 563 |
| 52737 | Standard | Columbus City | Louisa County | 319 |
| 52738 | Standard | Columbus Junction, Columbus Jct | Louisa County | 319 |
| 52739 | Standard | Conesville | Muscatine County | 319 |
| 52742 | Standard | De Witt | Clinton County | 563 |
| 52745 | Standard | Dixon, Big Rock | Scott County | 563 |
| 52746 | Standard | Donahue | Scott County | 563 |
| 52747 | Standard | Durant | Cedar County | 563 |
| 52748 | Standard | Eldridge | Scott County | 563 |
| 52749 | Standard | Fruitland | Muscatine County | 319 |
| 52750 | Standard | Goose Lake | Clinton County | 563 |
| 52751 | Standard | Grand Mound | Clinton County | 563 |
| 52752 | PO Box | Grandview | Louisa County | 319 |
| 52753 | Standard | Le Claire, Leclaire | Scott County | 563 |
| 52754 | Standard | Letts | Louisa County | 319 |
| 52755 | Standard | Lone Tree | Johnson County | 319 |
| 52756 | Standard | Long Grove | Scott County | 563 |
| 52757 | PO Box | Low Moor | Clinton County | 563 |
| 52758 | PO Box | Mc Causland | Scott County | 563 |
| 52759 | Standard | Montpelier | Muscatine County | - |
| 52760 | Standard | Moscow | Muscatine County | 563 |
| 52761 | Standard | Muscatine | Muscatine County | 563 |
| 52765 | Standard | New Liberty | Scott County | 563 |
| 52766 | Standard | Nichols | Muscatine County | 319 |
| 52767 | PO Box | Pleasant Valley, Pleasant Vly | Scott County | 563 |
| 52768 | Standard | Princeton | Scott County | 563 |
| 52769 | Standard | Stockton | Muscatine County | - |
| 52771 | Standard | Teeds Grove, Clinton | Clinton County | 563 |
| 52772 | Standard | Tipton | Cedar County | 563 |
| 52773 | Standard | Walcott, Maysville | Scott County | 563 |
| 52774 | PO Box | Welton | Clinton County | 563 |
| 52776 | Standard | West Liberty | Muscatine County | 319 |
| 52777 | Standard | Wheatland, Toronto | Clinton County | 563 |
| 52778 | Standard | Wilton | Muscatine County | 563 |
| 52801 | Standard | Davenport | Scott County | 563 |
| 52802 | Standard | Davenport | Scott County | 563 |
| 52803 | Standard | Davenport | Scott County | 563 |
| 52804 | Standard | Davenport | Scott County | 563 |
| 52805 | PO Box | Davenport | Scott County | 563 |
| 52806 | Standard | Davenport | Scott County | 563 |
| 52807 | Standard | Davenport | Scott County | 563 |
| 52808 | PO Box | Davenport | Scott County | 563 |
| 52809 | PO Box | Davenport | Scott County | 563 |