Iowa ZIP codes
1,055 ZIP codes. PO-box-only and unique ZIPs are marked.
| ZIP | City | County |
|---|---|---|
| 50001 | Ackworth | Warren County |
| 50002 | Adair | Guthrie County |
| 50003 | Adel | Dallas County |
| 50005 | Albion | Marshall County |
| 50006 | Alden | Hardin County |
| 50007 | Alleman | Polk County |
| 50008 | Allerton | Wayne County |
| 50009 | Altoona | Polk County |
| 50010 | Ames | Story County |
| 50011 · PO box/unique | Ames | Story County |
| 50012 | Ames | Story County |
| 50013 | Ames | Story County |
| 50014 | Ames | Story County |
| 50020 | Anita | Cass County |
| 50021 | Ankeny | Polk County |
| 50022 | Atlantic | Cass County |
| 50023 | Ankeny | Polk County |
| 50025 | Audubon | Audubon County |
| 50026 | Bagley | Guthrie County |
| 50027 | Barnes City | Mahaska County |
| 50028 | Baxter | Jasper County |
| 50029 | Bayard | Guthrie County |
| 50031 | Beaver | Boone County |
| 50032 | Berwick | Polk County |
| 50033 | Bevington | Madison County |
| 50034 | Blairsburg | Hamilton County |
| 50035 | Bondurant | Polk County |
| 50036 | Boone | Boone County |
| 50037 · PO box/unique | Boone | Boone County |
| 50038 | Booneville | Dallas County |
| 50039 | Bouton | Dallas County |
| 50040 | Boxholm | Boone County |
| 50041 | Bradford | Franklin County |
| 50042 | Brayton | Audubon County |
| 50043 · PO box/unique | Buckeye | Hardin County |
| 50044 | Bussey | Marion County |
| 50046 | Cambridge | Story County |
| 50047 | Carlisle | Warren County |
| 50048 | Casey | Guthrie County |
| 50049 | Chariton | Lucas County |
| 50050 | Churdan | Greene County |
| 50051 | Clemons | Marshall County |
| 50052 | Clio | Wayne County |
| 50054 | Colfax | Jasper County |
| 50055 | Collins | Story County |
| 50056 | Colo | Story County |
| 50057 | Columbia | Marion County |
| 50058 | Coon Rapids | Guthrie County |
| 50059 · PO box/unique | Cooper | Greene County |
| 50060 | Corydon | Wayne County |
| 50061 | Cumming | Madison County |
| 50062 | Melcher Dallas | Marion County |
| 50063 | Dallas Center | Dallas County |
| 50064 | Dana | Greene County |
| 50065 | Davis City | Decatur County |
| 50066 | Dawson | Dallas County |
| 50067 | Decatur | Decatur County |
| 50068 | Derby | Lucas County |
| 50069 | De Soto | Dallas County |
| 50070 | Dexter | Madison County |
| 50071 | Dows | Wright County |
| 50072 | Earlham | Madison County |
| 50073 | Elkhart | Polk County |
| 50074 | Ellston | Ringgold County |
| 50075 | Ellsworth | Hamilton County |
| 50076 | Exira | Audubon County |
| 50078 | Ferguson | Marshall County |
| 50099 · PO box/unique | Boone | Boone County |
| 50101 | Galt | Wright County |
| 50102 | Garden City | Hardin County |
| 50103 | Garden Grove | Decatur County |
| 50104 | Gibson | Keokuk County |
| 50105 | Gilbert | Story County |
| 50106 | Gilman | Marshall County |
| 50107 | Grand Junction | Greene County |
| 50108 | Grand River | Decatur County |
| 50109 | Granger | Polk County |
| 50110 | Gray | Audubon County |
| 50111 | Grimes | Polk County |
| 50112 | Grinnell | Poweshiek County |
| 50115 | Guthrie Center | Guthrie County |
| 50116 | Hamilton | Marion County |
| 50117 | Hamlin | Audubon County |
| 50118 | Hartford | Warren County |
| 50119 | Harvey | Marion County |
| 50120 | Haverhill | Marshall County |
| 50122 | Hubbard | Hardin County |
| 50123 | Humeston | Wayne County |
| 50124 | Huxley | Story County |
| 50125 | Indianola | Warren County |
| 50126 | Iowa Falls | Hardin County |
| 50127 | Ira | Jasper County |
| 50128 | Jamaica | Guthrie County |
| 50129 | Jefferson | Greene County |
| 50130 | Jewell | Hamilton County |
| 50131 | Johnston | Polk County |
| 50132 | Kamrar | Hamilton County |
| 50133 | Kellerton | Ringgold County |
| 50134 | Kelley | Story County |
| 50135 | Kellogg | Jasper County |
| 50136 | Keswick | Keokuk County |
| 50137 | Killduff | Jasper County |
| 50138 | Knoxville | Marion County |
| 50139 | Lacona | Warren County |
| 50140 | Lamoni | Decatur County |
| 50141 | Laurel | Marshall County |
| 50142 | Le Grand | Marshall County |
| 50143 | Leighton | Mahaska County |
| 50144 | Leon | Decatur County |
| 50145 | Liberty Center | Warren County |
| 50146 | Linden | Dallas County |
| 50147 | Lineville | Wayne County |
| 50148 | Liscomb | Marshall County |
| 50149 | Lorimor | Madison County |
| 50150 | Lovilia | Monroe County |
| 50151 | Lucas | Lucas County |
| 50152 | Luther | Boone County |
| 50153 | Lynnville | Jasper County |
| 50154 | Mc Callsburg | Story County |
| 50155 | Macksburg | Madison County |
| 50156 | Madrid | Boone County |
| 50157 | Malcom | Poweshiek County |
| 50158 | Marshalltown | Marshall County |
| 50160 | Martensdale | Warren County |
| 50161 | Maxwell | Polk County |
| 50162 | Melbourne | Marshall County |
| 50163 | Melcher Dallas | Marion County |
| 50164 | Menlo | Guthrie County |
| 50165 | Millerton | Wayne County |
| 50166 | Milo | Warren County |
| 50167 | Minburn | Dallas County |
| 50168 | Mingo | Jasper County |
| 50169 | Mitchellville | Polk County |
| 50170 | Monroe | Jasper County |
| 50171 | Montezuma | Poweshiek County |
| 50173 | Montour | Tama County |
| 50174 | Murray | Clarke County |
| 50201 | Nevada | Story County |
| 50206 | New Providence | Hardin County |
| 50207 | New Sharon | Mahaska County |
| 50208 | Newton | Jasper County |
| 50210 | New Virginia | Warren County |
| 50211 | Norwalk | Warren County |
| 50212 | Ogden | Boone County |
| 50213 | Osceola | Clarke County |
| 50214 | Otley | Marion County |
| 50216 | Panora | Guthrie County |
| 50217 | Paton | Greene County |
| 50218 | Patterson | Madison County |
| 50219 | Pella | Marion County |
| 50220 | Perry | Dallas County |
| 50222 | Peru | Madison County |
| 50223 | Pilot Mound | Boone County |
| 50225 | Pleasantville | Marion County |
| 50226 | Polk City | Polk County |
| 50227 | Popejoy | Franklin County |
| 50228 | Prairie City | Jasper County |
| 50229 | Prole | Warren County |
| 50230 | Radcliffe | Hardin County |
| 50231 | Randall | Hamilton County |
| 50232 | Reasnor | Jasper County |
| 50233 | Redfield | Dallas County |
| 50234 | Rhodes | Marshall County |
| 50235 | Rippey | Greene County |
| 50236 | Roland | Story County |
| 50237 | Runnells | Polk County |
| 50238 | Russell | Lucas County |
| 50239 | Saint Anthony | Marshall County |
| 50240 | Saint Charles | Madison County |
| 50241 | Saint Marys | Warren County |
| 50242 | Searsboro | Poweshiek County |
| 50243 | Sheldahl | Polk County |
| 50244 | Slater | Polk County |
| 50246 | Stanhope | Hamilton County |
| 50247 | State Center | Marshall County |
| 50248 | Story City | Story County |
| 50249 | Stratford | Hamilton County |
| 50250 | Stuart | Adair County |
| 50251 | Sully | Jasper County |
| 50252 | Swan | Marion County |
| 50254 | Thayer | Union County |
| 50255 | Thornburg | Keokuk County |
| 50256 | Tracy | Marion County |
| 50257 | Truro | Madison County |
| 50258 | Union | Hardin County |
| 50259 · PO box/unique | Gifford | Hardin County |
| 50261 | Van Meter | Madison County |
| 50262 | Van Wert | Decatur County |
| 50263 | Waukee | Dallas County |
| 50264 | Weldon | Clarke County |
| 50265 | West Des Moines | Polk County |
| 50266 | West Des Moines | Dallas County |
| 50268 | What Cheer | Keokuk County |
| 50269 | Whitten | Hardin County |
| 50271 | Williams | Hamilton County |
| 50272 | Williamson | Lucas County |
| 50273 | Winterset | Madison County |
| 50274 | Wiota | Cass County |
| 50275 | Woodburn | Clarke County |
| 50276 | Woodward | Boone County |
| 50277 | Yale | Guthrie County |
| 50278 | Zearing | Story County |
| 50301 · PO box/unique | Des Moines | Polk County |
| 50302 · PO box/unique | Des Moines | Polk County |
| 50303 · PO box/unique | Des Moines | Polk County |
| 50304 · PO box/unique | Des Moines | Polk County |
| 50305 · PO box/unique | Des Moines | Polk County |
| 50306 · PO box/unique | Des Moines | Polk County |
| 50307 · PO box/unique | Des Moines | Polk County |
| 50308 · PO box/unique | Des Moines | Polk County |
| 50309 | Des Moines | Polk County |
| 50310 | Des Moines | Polk County |
| 50311 | Des Moines | Polk County |
| 50312 | Des Moines | Polk County |
| 50313 | Des Moines | Polk County |
| 50314 | Des Moines | Polk County |
| 50315 | Des Moines | Polk County |
| 50316 | Des Moines | Polk County |
| 50317 | Des Moines | Polk County |
| 50318 · PO box/unique | Des Moines | Polk County |
| 50319 | Des Moines | Polk County |
| 50320 | Des Moines | Polk County |
| 50321 | Des Moines | Polk County |
| 50322 | Urbandale | Polk County |
| 50323 | Urbandale | Dallas County |
| 50324 | Windsor Heights | Polk County |
| 50325 | Clive | Polk County |
| 50327 | Pleasant Hill | Polk County |
| 50328 · PO box/unique | Des Moines | Polk County |
| 50329 · PO box/unique | Des Moines | Polk County |
| 50330 · PO box/unique | Des Moines | Polk County |
| 50331 · PO box/unique | Des Moines | Polk County |
| 50332 · PO box/unique | Des Moines | Polk County |
| 50333 · PO box/unique | Des Moines | Polk County |
| 50334 · PO box/unique | Des Moines | Polk County |
| 50335 · PO box/unique | Des Moines | Polk County |
| 50336 · PO box/unique | Des Moines | Polk County |
| 50339 · PO box/unique | Des Moines | Polk County |
| 50340 · PO box/unique | Des Moines | Polk County |
| 50359 · PO box/unique | Des Moines | Polk County |
| 50360 · PO box/unique | Des Moines | Polk County |
| 50361 · PO box/unique | Des Moines | Polk County |
| 50362 · PO box/unique | Des Moines | Polk County |
| 50363 · PO box/unique | Des Moines | Polk County |
| 50364 · PO box/unique | Des Moines | Polk County |
| 50367 · PO box/unique | Des Moines | Polk County |
| 50368 · PO box/unique | Des Moines | Polk County |
| 50369 · PO box/unique | Des Moines | Polk County |
| 50380 · PO box/unique | Des Moines | Polk County |
| 50381 · PO box/unique | Des Moines | Polk County |
| 50391 · PO box/unique | Des Moines | Polk County |
| 50392 · PO box/unique | Des Moines | Polk County |
| 50393 · PO box/unique | Des Moines | Polk County |
| 50394 · PO box/unique | Des Moines | Polk County |
| 50395 · PO box/unique | Des Moines | Polk County |
| 50396 · PO box/unique | Des Moines | Polk County |
| 50398 · PO box/unique | Urbandale | Polk County |
| 50401 | Mason City | Cerro Gordo County |
| 50402 · PO box/unique | Mason City | Cerro Gordo County |
| 50420 | Alexander | Franklin County |
| 50421 | Belmond | Wright County |
| 50423 | Britt | Hancock County |
| 50424 | Buffalo Center | Winnebago County |
| 50426 | Carpenter | Mitchell County |
| 50427 | Chapin | Franklin County |
| 50428 | Clear Lake | Cerro Gordo County |
| 50430 | Corwith | Hancock County |
| 50431 | Coulter | Franklin County |
| 50432 | Crystal Lake | Hancock County |
| 50433 | Dougherty | Cerro Gordo County |
| 50434 | Fertile | Worth County |
| 50435 | Floyd | Floyd County |
| 50436 | Forest City | Winnebago County |
| 50438 | Garner | Hancock County |
| 50439 | Goodell | Hancock County |
| 50440 | Grafton | Worth County |
| 50441 | Hampton | Franklin County |
| 50444 | Hanlontown | Worth County |
| 50446 | Joice | Worth County |
| 50447 | Kanawha | Hancock County |
| 50448 | Kensett | Worth County |
| 50449 | Klemme | Hancock County |
| 50450 | Lake Mills | Winnebago County |
| 50451 | Lakota | Kossuth County |
| 50452 | Latimer | Franklin County |
| 50453 | Leland | Winnebago County |
| 50454 | Little Cedar | Mitchell County |
| 50455 | Mc Intire | Mitchell County |
| 50456 | Manly | Worth County |
| 50457 | Meservey | Hancock County |
| 50458 | Nora Springs | Floyd County |
| 50459 | Northwood | Worth County |
| 50460 | Orchard | Mitchell County |
| 50461 | Osage | Mitchell County |
| 50464 | Plymouth | Cerro Gordo County |
| 50465 | Rake | Winnebago County |
| 50466 | Riceville | Howard County |
| 50467 | Rock Falls | Cerro Gordo County |
| 50468 | Rockford | Floyd County |
| 50469 | Rockwell | Cerro Gordo County |
| 50470 | Rowan | Wright County |
| 50471 | Rudd | Floyd County |
| 50472 | Saint Ansgar | Mitchell County |
| 50473 | Scarville | Winnebago County |
| 50475 | Sheffield | Franklin County |
| 50476 | Stacyville | Mitchell County |
| 50477 | Swaledale | Cerro Gordo County |
| 50478 | Thompson | Winnebago County |
| 50479 | Thornton | Cerro Gordo County |
| 50480 | Titonka | Kossuth County |
| 50481 · PO box/unique | Toeterville | Mitchell County |
| 50482 | Ventura | Cerro Gordo County |
| 50483 | Wesley | Kossuth County |
| 50484 | Woden | Hancock County |
| 50501 | Fort Dodge | Webster County |
| 50510 | Albert City | Buena Vista County |
| 50511 | Algona | Kossuth County |
| 50514 | Armstrong | Emmet County |
| 50515 | Ayrshire | Palo Alto County |
| 50516 | Badger | Webster County |
| 50517 | Bancroft | Kossuth County |
| 50518 | Barnum | Webster County |
| 50519 | Bode | Humboldt County |
| 50520 | Bradgate | Humboldt County |
| 50521 | Burnside | Webster County |
| 50522 | Burt | Kossuth County |
| 50523 | Callender | Webster County |
| 50524 | Clare | Webster County |
| 50525 | Clarion | Wright County |
| 50526 · PO box/unique | Clarion | Wright County |
| 50527 | Curlew | Palo Alto County |
| 50528 | Cylinder | Palo Alto County |
| 50529 | Dakota City | Humboldt County |
| 50530 | Dayton | Webster County |
| 50531 | Dolliver | Emmet County |
| 50532 | Duncombe | Webster County |
| 50533 | Eagle Grove | Wright County |
| 50535 | Early | Sac County |
| 50536 | Emmetsburg | Palo Alto County |
| 50538 | Farnhamville | Calhoun County |
| 50539 | Fenton | Kossuth County |
| 50540 | Fonda | Pocahontas County |
| 50541 | Gilmore City | Pocahontas County |
| 50542 | Goldfield | Wright County |
| 50543 | Gowrie | Webster County |
| 50544 | Harcourt | Webster County |
| 50545 | Hardy | Humboldt County |
| 50546 | Havelock | Pocahontas County |
| 50548 | Humboldt | Humboldt County |
| 50551 | Jolley | Calhoun County |
| 50552 | Knierim | Calhoun County |
| 50554 | Laurens | Pocahontas County |
| 50556 | Ledyard | Kossuth County |
| 50557 | Lehigh | Webster County |
| 50558 | Livermore | Humboldt County |
| 50559 | Lone Rock | Kossuth County |
| 50560 | Lu Verne | Kossuth County |
| 50561 | Lytton | Calhoun County |
| 50562 | Mallard | Palo Alto County |
| 50563 | Manson | Calhoun County |
| 50565 | Marathon | Buena Vista County |
| 50566 | Moorland | Webster County |
| 50567 | Nemaha | Sac County |
| 50568 | Newell | Buena Vista County |
| 50569 | Otho | Webster County |
| 50570 | Ottosen | Humboldt County |
| 50571 | Palmer | Pocahontas County |
| 50573 | Plover | Pocahontas County |
| 50574 | Pocahontas | Pocahontas County |
| 50575 | Pomeroy | Calhoun County |
| 50576 | Rembrandt | Buena Vista County |
| 50577 | Renwick | Humboldt County |
| 50578 | Ringsted | Emmet County |
| 50579 | Rockwell City | Calhoun County |
| 50581 | Rolfe | Pocahontas County |
| 50582 | Rutland | Humboldt County |
| 50583 | Sac City | Sac County |
| 50585 | Sioux Rapids | Buena Vista County |
| 50586 | Somers | Calhoun County |
| 50588 | Storm Lake | Buena Vista County |
| 50590 | Swea City | Kossuth County |
| 50591 | Thor | Humboldt County |
| 50592 | Truesdale | Buena Vista County |
| 50593 | Varina | Pocahontas County |
| 50594 | Vincent | Webster County |
| 50595 | Webster City | Hamilton County |
| 50597 | West Bend | Palo Alto County |
| 50598 | Whittemore | Kossuth County |
| 50599 | Woolstock | Wright County |
| 50601 | Ackley | Franklin County |
| 50602 | Allison | Butler County |
| 50603 | Alta Vista | Chickasaw County |
| 50604 | Aplington | Butler County |
| 50605 | Aredale | Franklin County |
| 50606 | Arlington | Fayette County |
| 50607 | Aurora | Buchanan County |
| 50608 | Austinville | Butler County |
| 50609 | Beaman | Grundy County |
| 50611 | Bristow | Butler County |
| 50612 | Buckingham | Tama County |
| 50613 | Cedar Falls | Black Hawk County |
| 50614 · PO box/unique | Cedar Falls | Black Hawk County |
| 50616 | Charles City | Floyd County |
| 50619 | Clarksville | Butler County |
| 50620 | Colwell | Floyd County |
| 50621 | Conrad | Grundy County |
| 50622 | Denver | Bremer County |
| 50623 | Dewar | Black Hawk County |
| 50624 | Dike | Grundy County |
| 50625 | Dumont | Butler County |
| 50626 | Dunkerton | Black Hawk County |
| 50627 | Eldora | Hardin County |
| 50628 | Elma | Howard County |
| 50629 | Fairbank | Buchanan County |
| 50630 | Fredericksburg | Chickasaw County |
| 50631 | Frederika | Bremer County |
| 50632 | Garwin | Tama County |
| 50633 | Geneva | Franklin County |
| 50634 | Gilbertville | Black Hawk County |
| 50635 | Gladbrook | Tama County |
| 50636 | Greene | Butler County |
| 50638 | Grundy Center | Grundy County |
| 50641 | Hazleton | Buchanan County |
| 50642 | Holland | Grundy County |
| 50643 | Hudson | Black Hawk County |
| 50644 | Independence | Buchanan County |
| 50645 | Ionia | Chickasaw County |
| 50647 | Janesville | Bremer County |
| 50648 | Jesup | Black Hawk County |
| 50649 | Kesley | Butler County |
| 50650 | Lamont | Buchanan County |
| 50651 | La Porte City | Black Hawk County |
| 50652 | Lincoln | Tama County |
| 50653 | Marble Rock | Floyd County |
| 50654 | Masonville | Buchanan County |
| 50655 | Maynard | Fayette County |
| 50657 | Morrison | Grundy County |
| 50658 | Nashua | Chickasaw County |
| 50659 | New Hampton | Chickasaw County |
| 50660 | New Hartford | Butler County |
| 50661 · PO box/unique | North Washington | Chickasaw County |
| 50662 | Oelwein | Fayette County |
| 50664 | Oran | Fayette County |
| 50665 | Parkersburg | Butler County |
| 50666 | Plainfield | Bremer County |
| 50667 | Raymond | Black Hawk County |
| 50668 | Readlyn | Bremer County |
| 50669 | Reinbeck | Grundy County |
| 50670 | Shell Rock | Butler County |
| 50671 | Stanley | Fayette County |
| 50672 | Steamboat Rock | Hardin County |
| 50673 | Stout | Grundy County |
| 50674 | Sumner | Bremer County |
| 50675 | Traer | Tama County |
| 50676 | Tripoli | Bremer County |
| 50677 | Waverly | Bremer County |
| 50680 | Wellsburg | Grundy County |
| 50681 | Westgate | Fayette County |
| 50682 | Winthrop | Buchanan County |
| 50701 | Waterloo | Black Hawk County |
| 50702 | Waterloo | Black Hawk County |
| 50703 | Waterloo | Black Hawk County |
| 50704 · PO box/unique | Waterloo | Black Hawk County |
| 50707 | Evansdale | Black Hawk County |
| 50801 | Creston | Union County |
| 50830 | Afton | Union County |
| 50831 | Arispe | Union County |
| 50833 | Bedford | Taylor County |
| 50835 | Benton | Ringgold County |
| 50836 | Blockton | Taylor County |
| 50837 | Bridgewater | Adair County |
| 50839 | Carbon | Adams County |
| 50840 | Clearfield | Taylor County |
| 50841 | Corning | Adams County |
| 50842 | Cromwell | Union County |
| 50843 | Cumberland | Cass County |
| 50845 | Diagonal | Ringgold County |
| 50846 | Fontanelle | Adair County |
| 50847 | Grant | Montgomery County |
| 50848 | Gravity | Taylor County |
| 50849 | Greenfield | Adair County |
| 50851 | Lenox | Taylor County |
| 50853 | Massena | Cass County |
| 50854 | Mount Ayr | Ringgold County |
| 50857 | Nodaway | Adams County |
| 50858 | Orient | Adair County |
| 50859 | Prescott | Adams County |
| 50860 | Redding | Ringgold County |
| 50861 | Shannon City | Union County |
| 50862 | Sharpsburg | Taylor County |
| 50863 | Tingley | Ringgold County |
| 50864 | Villisca | Montgomery County |
| 50936 · PO box/unique | Des Moines | Polk County |
| 50940 · PO box/unique | Des Moines | Polk County |
| 50947 · PO box/unique | Des Moines | Polk County |
| 50950 · PO box/unique | Des Moines | Polk County |
| 50980 · PO box/unique | Des Moines | Polk County |
| 50981 · PO box/unique | Des Moines | Polk County |
| 50982 · PO box/unique | Des Moines | Polk County |
| 50983 · PO box/unique | Des Moines | Polk County |
| 51001 | Akron | Plymouth County |
| 51002 | Alta | Buena Vista County |
| 51003 | Alton | Sioux County |
| 51004 | Anthon | Woodbury County |
| 51005 | Aurelia | Cherokee County |
| 51006 | Battle Creek | Ida County |
| 51007 | Bronson | Woodbury County |
| 51008 | Brunsville | Plymouth County |
| 51009 | Calumet | O'Brien County |
| 51010 | Castana | Monona County |
| 51011 | Chatsworth | Sioux County |
| 51012 | Cherokee | Cherokee County |
| 51014 | Cleghorn | Cherokee County |
| 51015 | Climbing Hill | Woodbury County |
| 51016 | Correctionville | Woodbury County |
| 51018 | Cushing | Ida County |
| 51019 | Danbury | Woodbury County |
| 51020 | Galva | Ida County |
| 51022 | Granville | O'Brien County |
| 51023 | Hawarden | Sioux County |
| 51024 | Hinton | Plymouth County |
| 51025 | Holstein | Ida County |
| 51026 | Hornick | Woodbury County |
| 51027 | Ireton | Sioux County |
| 51028 | Kingsley | Plymouth County |
| 51029 | Larrabee | Cherokee County |
| 51030 | Lawton | Woodbury County |
| 51031 | Le Mars | Plymouth County |
| 51033 | Linn Grove | Clay County |
| 51034 | Mapleton | Monona County |
| 51035 | Marcus | Cherokee County |
| 51036 | Maurice | Sioux County |
| 51037 | Meriden | Cherokee County |
| 51038 | Merrill | Plymouth County |
| 51039 | Moville | Woodbury County |
| 51040 | Onawa | Monona County |
| 51041 | Orange City | Sioux County |
| 51044 | Oto | Woodbury County |
| 51045 | Oyens | Plymouth County |
| 51046 | Paullina | O'Brien County |
| 51047 | Peterson | Clay County |
| 51048 | Pierson | Woodbury County |
| 51049 | Quimby | Cherokee County |
| 51050 | Remsen | Plymouth County |
| 51051 | Rodney | Monona County |
| 51052 | Salix | Woodbury County |
| 51053 | Schaller | Sac County |
| 51054 | Sergeant Bluff | Woodbury County |
| 51055 | Sloan | Woodbury County |
| 51056 | Smithland | Woodbury County |
| 51058 | Sutherland | O'Brien County |
| 51060 | Ute | Monona County |
| 51061 | Washta | Cherokee County |
| 51062 | Westfield | Plymouth County |
| 51063 | Whiting | Monona County |
| 51101 | Sioux City | Woodbury County |
| 51102 · PO box/unique | Sioux City | Woodbury County |
| 51103 | Sioux City | Woodbury County |
| 51104 | Sioux City | Woodbury County |
| 51105 | Sioux City | Woodbury County |
| 51106 | Sioux City | Woodbury County |
| 51108 | Sioux City | Plymouth County |
| 51109 | Sioux City | Plymouth County |
| 51111 | Sioux City | Woodbury County |
| 51201 | Sheldon | Sioux County |
| 51230 | Alvord | Lyon County |
| 51231 | Archer | O'Brien County |
| 51232 | Ashton | Osceola County |
| 51234 | Boyden | Sioux County |
| 51235 | Doon | Lyon County |
| 51237 | George | Lyon County |
| 51238 | Hospers | Sioux County |
| 51239 | Hull | Sioux County |
| 51240 | Inwood | Lyon County |
| 51241 | Larchwood | Lyon County |
| 51242 | Lester | Lyon County |
| 51243 | Little Rock | Lyon County |
| 51244 | Matlock | Sioux County |
| 51245 | Primghar | O'Brien County |
| 51246 | Rock Rapids | Lyon County |
| 51247 | Rock Valley | Sioux County |
| 51248 | Sanborn | O'Brien County |
| 51249 | Sibley | Osceola County |
| 51250 | Sioux Center | Sioux County |
| 51301 | Spencer | Clay County |
| 51331 | Arnolds Park | Dickinson County |
| 51333 | Dickens | Clay County |
| 51334 | Estherville | Emmet County |
| 51338 | Everly | Clay County |
| 51340 | Fostoria | Clay County |
| 51341 | Gillett Grove | Clay County |
| 51342 | Graettinger | Palo Alto County |
| 51343 | Greenville | Clay County |
| 51345 | Harris | Osceola County |
| 51346 | Hartley | O'Brien County |
| 51347 | Lake Park | Dickinson County |
| 51350 | Melvin | Osceola County |
| 51351 | Milford | Dickinson County |
| 51354 | Ocheyedan | Osceola County |
| 51355 | Okoboji | Dickinson County |
| 51357 | Royal | Clay County |
| 51358 | Ruthven | Palo Alto County |
| 51360 | Spirit Lake | Dickinson County |
| 51363 | Superior | Dickinson County |
| 51364 | Terril | Dickinson County |
| 51365 | Wallingford | Emmet County |
| 51366 | Webb | Clay County |
| 51401 | Carroll | Carroll County |
| 51430 | Arcadia | Carroll County |
| 51431 | Arthur | Ida County |
| 51432 | Aspinwall | Crawford County |
| 51433 | Auburn | Sac County |
| 51436 | Breda | Carroll County |
| 51439 | Charter Oak | Crawford County |
| 51440 | Dedham | Carroll County |
| 51441 | Deloit | Crawford County |
| 51442 | Denison | Crawford County |
| 51443 | Glidden | Carroll County |
| 51444 | Halbur | Carroll County |
| 51445 | Ida Grove | Ida County |
| 51446 | Irwin | Shelby County |
| 51447 | Kirkman | Shelby County |
| 51448 | Kiron | Crawford County |
| 51449 | Lake City | Calhoun County |
| 51450 | Lake View | Sac County |
| 51451 | Lanesboro | Carroll County |
| 51452 | Lidderdale | Carroll County |
| 51453 | Lohrville | Calhoun County |
| 51454 | Manilla | Crawford County |
| 51455 | Manning | Carroll County |
| 51458 | Odebolt | Sac County |
| 51459 | Ralston | Carroll County |
| 51460 | Ricketts | Crawford County |
| 51461 | Schleswig | Crawford County |
| 51462 | Scranton | Greene County |
| 51463 | Templeton | Carroll County |
| 51465 | Vail | Crawford County |
| 51466 | Wall Lake | Sac County |
| 51467 | Westside | Crawford County |
| 51501 | Council Bluffs | Pottawattamie County |
| 51502 · PO box/unique | Council Bluffs | Pottawattamie County |
| 51503 | Council Bluffs | Pottawattamie County |
| 51510 | Carter Lake | Pottawattamie County |
| 51520 | Arion | Crawford County |
| 51521 | Avoca | Pottawattamie County |
| 51523 | Blencoe | Monona County |
| 51525 | Carson | Pottawattamie County |
| 51526 | Crescent | Pottawattamie County |
| 51527 | Defiance | Shelby County |
| 51528 | Dow City | Crawford County |
| 51529 | Dunlap | Harrison County |
| 51530 | Earling | Shelby County |
| 51531 | Elk Horn | Shelby County |
| 51532 | Elliott | Montgomery County |
| 51533 | Emerson | Montgomery County |
| 51534 | Glenwood | Mills County |
| 51535 | Griswold | Cass County |
| 51536 | Hancock | Pottawattamie County |
| 51537 | Harlan | Shelby County |
| 51540 | Hastings | Mills County |
| 51541 | Henderson | Mills County |
| 51542 | Honey Creek | Pottawattamie County |
| 51543 | Kimballton | Audubon County |
| 51544 | Lewis | Cass County |
| 51545 | Little Sioux | Harrison County |
| 51546 | Logan | Harrison County |
| 51548 | Mc Clelland | Pottawattamie County |
| 51549 | Macedonia | Pottawattamie County |
| 51550 | Magnolia | Harrison County |
| 51551 | Malvern | Mills County |
| 51552 | Marne | Cass County |
| 51553 | Minden | Pottawattamie County |
| 51554 | Mineola | Mills County |
| 51555 | Missouri Valley | Harrison County |
| 51556 | Modale | Harrison County |
| 51557 | Mondamin | Harrison County |
| 51558 | Moorhead | Monona County |
| 51559 | Neola | Pottawattamie County |
| 51560 | Oakland | Pottawattamie County |
| 51561 | Pacific Junction | Mills County |
| 51562 | Panama | Shelby County |
| 51563 | Persia | Harrison County |
| 51564 | Pisgah | Harrison County |
| 51565 | Portsmouth | Shelby County |
| 51566 | Red Oak | Montgomery County |
| 51570 | Shelby | Shelby County |
| 51571 | Silver City | Mills County |
| 51572 | Soldier | Monona County |
| 51573 | Stanton | Montgomery County |
| 51575 | Treynor | Pottawattamie County |
| 51576 | Underwood | Pottawattamie County |
| 51577 | Walnut | Pottawattamie County |
| 51578 | Westphalia | Shelby County |
| 51579 | Woodbine | Harrison County |
| 51591 · PO box/unique | Red Oak | Montgomery County |
| 51593 · PO box/unique | Harlan | Pottawattamie County |
| 51601 | Shenandoah | Page County |
| 51603 · PO box/unique | Shenandoah | Page County |
| 51630 | Blanchard | Page County |
| 51631 | Braddyville | Page County |
| 51632 | Clarinda | Page County |
| 51636 | Coin | Page County |
| 51637 | College Springs | Page County |
| 51638 | Essex | Page County |
| 51639 | Farragut | Fremont County |
| 51640 | Hamburg | Fremont County |
| 51645 | Imogene | Fremont County |
| 51646 | New Market | Taylor County |
| 51647 | Northboro | Page County |
| 51648 | Percival | Fremont County |
| 51649 | Randolph | Fremont County |
| 51650 | Riverton | Fremont County |
| 51651 | Shambaugh | Page County |
| 51652 | Sidney | Fremont County |
| 51653 | Tabor | Fremont County |
| 51654 | Thurman | Fremont County |
| 51656 | Yorktown | Page County |
| 52001 | Dubuque | Dubuque County |
| 52002 | Dubuque | Dubuque County |
| 52003 | Dubuque | Dubuque County |
| 52004 · PO box/unique | Dubuque | Dubuque County |
| 52030 | Andrew | Jackson County |
| 52031 | Bellevue | Jackson County |
| 52032 | Bernard | Dubuque County |
| 52033 | Cascade | Jones County |
| 52035 | Colesburg | Clayton County |
| 52036 | Delaware | Delaware County |
| 52037 | Delmar | Clinton County |
| 52038 | Dundee | Delaware County |
| 52039 | Durango | Dubuque County |
| 52040 | Dyersville | Delaware County |
| 52041 | Earlville | Delaware County |
| 52042 | Edgewood | Clayton County |
| 52043 | Elkader | Clayton County |
| 52044 | Elkport | Clayton County |
| 52045 | Epworth | Dubuque County |
| 52046 | Farley | Dubuque County |
| 52047 | Farmersburg | Clayton County |
| 52048 | Garber | Clayton County |
| 52049 | Garnavillo | Clayton County |
| 52050 | Greeley | Delaware County |
| 52052 | Guttenberg | Clayton County |
| 52053 | Holy Cross | Dubuque County |
| 52054 | La Motte | Jackson County |
| 52056 | Luxemburg | Dubuque County |
| 52057 | Manchester | Delaware County |
| 52060 | Maquoketa | Jackson County |
| 52064 | Miles | Jackson County |
| 52065 | New Vienna | Dubuque County |
| 52066 | North Buena Vista | Clayton County |
| 52068 | Peosta | Dubuque County |
| 52069 | Preston | Jackson County |
| 52070 | Sabula | Jackson County |
| 52071 | Saint Donatus | Jackson County |
| 52072 | Saint Olaf | Clayton County |
| 52073 | Sherrill | Dubuque County |
| 52074 | Spragueville | Jackson County |
| 52075 | Springbrook | Jackson County |
| 52076 | Strawberry Point | Clayton County |
| 52077 | Volga | Clayton County |
| 52078 | Worthington | Dubuque County |
| 52079 | Zwingle | Jackson County |
| 52099 · PO box/unique | Dubuque | Dubuque County |
| 52101 | Decorah | Winneshiek County |
| 52132 | Calmar | Winneshiek County |
| 52133 | Castalia | Winneshiek County |
| 52134 | Chester | Howard County |
| 52135 | Clermont | Fayette County |
| 52136 | Cresco | Howard County |
| 52140 | Dorchester | Allamakee County |
| 52141 | Elgin | Fayette County |
| 52142 | Fayette | Fayette County |
| 52144 | Fort Atkinson | Winneshiek County |
| 52146 | Harpers Ferry | Allamakee County |
| 52147 | Hawkeye | Fayette County |
| 52149 · PO box/unique | Highlandville | Winneshiek County |
| 52151 | Lansing | Allamakee County |
| 52154 | Lawler | Chickasaw County |
| 52155 | Lime Springs | Howard County |
| 52156 | Luana | Clayton County |
| 52157 | Mc Gregor | Clayton County |
| 52158 | Marquette | Clayton County |
| 52159 | Monona | Allamakee County |
| 52160 | New Albin | Allamakee County |
| 52161 | Ossian | Winneshiek County |
| 52162 | Postville | Allamakee County |
| 52163 | Protivin | Howard County |
| 52164 | Randalia | Fayette County |
| 52165 | Ridgeway | Winneshiek County |
| 52166 | Saint Lucas | Fayette County |
| 52168 | Spillville | Winneshiek County |
| 52169 | Wadena | Fayette County |
| 52170 | Waterville | Allamakee County |
| 52171 | Waucoma | Fayette County |
| 52172 | Waukon | Allamakee County |
| 52175 | West Union | Fayette County |
| 52201 | Ainsworth | Washington County |
| 52202 | Alburnett | Linn County |
| 52203 | Amana | Iowa County |
| 52204 · PO box/unique | Amana | Iowa County |
| 52205 | Anamosa | Jones County |
| 52206 | Atkins | Benton County |
| 52207 | Baldwin | Jackson County |
| 52208 | Belle Plaine | Benton County |
| 52209 | Blairstown | Benton County |
| 52210 | Brandon | Buchanan County |
| 52211 | Brooklyn | Poweshiek County |
| 52212 | Center Junction | Jones County |
| 52213 | Center Point | Linn County |
| 52214 | Central City | Linn County |
| 52215 | Chelsea | Tama County |
| 52216 | Clarence | Cedar County |
| 52217 | Clutier | Tama County |
| 52218 | Coggon | Linn County |
| 52219 | Prairieburg | Linn County |
| 52220 | Conroy | Iowa County |
| 52221 | Guernsey | Poweshiek County |
| 52222 | Deep River | Poweshiek County |
| 52223 | Delhi | Delaware County |
| 52224 | Dysart | Benton County |
| 52225 | Elberon | Tama County |
| 52227 | Ely | Linn County |
| 52228 | Fairfax | Linn County |
| 52229 | Garrison | Benton County |
| 52231 | Harper | Keokuk County |
| 52232 | Hartwick | Poweshiek County |
| 52233 | Hiawatha | Linn County |
| 52235 | Hills | Johnson County |
| 52236 | Homestead | Iowa County |
| 52237 | Hopkinton | Delaware County |
| 52240 | Iowa City | Johnson County |
| 52241 | Coralville | Johnson County |
| 52242 | Iowa City | Johnson County |
| 52243 · PO box/unique | Iowa City | Johnson County |
| 52244 · PO box/unique | Iowa City | Johnson County |
| 52245 | Iowa City | Johnson County |
| 52246 | Iowa City | Johnson County |
| 52247 | Kalona | Johnson County |
| 52248 | Keota | Washington County |
| 52249 | Keystone | Benton County |
| 52251 | Ladora | Iowa County |
| 52252 | Langworthy | Jones County |
| 52253 | Lisbon | Cedar County |
| 52254 | Lost Nation | Clinton County |
| 52255 | Lowden | Cedar County |
| 52257 | Luzerne | Benton County |
| 52301 | Marengo | Iowa County |
| 52302 | Marion | Linn County |
| 52305 | Martelle | Jones County |
| 52306 | Mechanicsville | Cedar County |
| 52307 | Middle Amana | Iowa County |
| 52308 | Millersburg | Iowa County |
| 52309 | Monmouth | Jackson County |
| 52310 | Monticello | Jones County |
| 52312 | Morley | Jones County |
| 52313 | Mount Auburn | Benton County |
| 52314 | Mount Vernon | Linn County |
| 52315 | Newhall | Benton County |
| 52316 | North English | Iowa County |
| 52317 | North Liberty | Johnson County |
| 52318 | Norway | Benton County |
| 52320 | Olin | Jones County |
| 52321 | Onslow | Jones County |
| 52322 | Oxford | Johnson County |
| 52323 | Oxford Junction | Jones County |
| 52324 | Palo | Linn County |
| 52325 | Parnell | Iowa County |
| 52326 | Quasqueton | Buchanan County |
| 52327 | Riverside | Washington County |
| 52328 | Robins | Linn County |
| 52329 | Rowley | Buchanan County |
| 52330 | Ryan | Delaware County |
| 52332 | Shellsburg | Benton County |
| 52333 | Solon | Johnson County |
| 52334 | South Amana | Iowa County |
| 52335 | South English | Keokuk County |
| 52336 | Springville | Linn County |
| 52337 | Stanwood | Cedar County |
| 52338 | Swisher | Johnson County |
| 52339 | Tama | Tama County |
| 52340 | Tiffin | Johnson County |
| 52341 | Toddville | Linn County |
| 52342 | Toledo | Tama County |
| 52344 | Troy Mills | Linn County |
| 52345 | Urbana | Benton County |
| 52346 | Van Horne | Benton County |
| 52347 | Victor | Iowa County |
| 52348 | Vining | Tama County |
| 52349 | Vinton | Benton County |
| 52351 | Walford | Benton County |
| 52352 | Walker | Linn County |
| 52353 | Washington | Washington County |
| 52354 | Watkins | Benton County |
| 52355 | Webster | Keokuk County |
| 52356 | Wellman | Washington County |
| 52358 | West Branch | Cedar County |
| 52359 | West Chester | Washington County |
| 52361 | Williamsburg | Iowa County |
| 52362 | Wyoming | Jones County |
| 52401 | Cedar Rapids | Linn County |
| 52402 | Cedar Rapids | Linn County |
| 52403 | Cedar Rapids | Linn County |
| 52404 | Cedar Rapids | Linn County |
| 52405 | Cedar Rapids | Linn County |
| 52406 · PO box/unique | Cedar Rapids | Linn County |
| 52407 · PO box/unique | Cedar Rapids | Linn County |
| 52408 · PO box/unique | Cedar Rapids | Linn County |
| 52409 · PO box/unique | Cedar Rapids | Linn County |
| 52410 · PO box/unique | Cedar Rapids | Linn County |
| 52411 | Cedar Rapids | Linn County |
| 52497 · PO box/unique | Cedar Rapids | Linn County |
| 52498 · PO box/unique | Cedar Rapids | Linn County |
| 52499 · PO box/unique | Cedar Rapids | Linn County |
| 52501 | Ottumwa | Wapello County |
| 52530 | Agency | Wapello County |
| 52531 | Albia | Monroe County |
| 52533 | Batavia | Jefferson County |
| 52534 | Beacon | Mahaska County |
| 52535 | Birmingham | Van Buren County |
| 52536 | Blakesburg | Wapello County |
| 52537 | Bloomfield | Davis County |
| 52540 | Brighton | Jefferson County |
| 52542 | Cantril | Van Buren County |
| 52543 | Cedar | Mahaska County |
| 52544 | Centerville | Appanoose County |
| 52548 | Chillicothe | Wapello County |
| 52549 | Cincinnati | Appanoose County |
| 52550 | Delta | Keokuk County |
| 52551 | Douds | Van Buren County |
| 52552 | Drakesville | Davis County |
| 52553 | Eddyville | Wapello County |
| 52554 | Eldon | Wapello County |
| 52555 | Exline | Appanoose County |
| 52556 | Fairfield | Jefferson County |
| 52557 | Fairfield | Jefferson County |
| 52560 | Floris | Davis County |
| 52561 | Fremont | Mahaska County |
| 52562 | Hayesville | Keokuk County |
| 52563 | Hedrick | Keokuk County |
| 52565 | Keosauqua | Van Buren County |
| 52566 | Kirkville | Wapello County |
| 52567 | Libertyville | Jefferson County |
| 52568 | Martinsburg | Keokuk County |
| 52569 | Melrose | Monroe County |
| 52570 | Milton | Van Buren County |
| 52571 | Moravia | Appanoose County |
| 52572 | Moulton | Appanoose County |
| 52573 | Mount Sterling | Van Buren County |
| 52574 | Mystic | Appanoose County |
| 52576 | Ollie | Keokuk County |
| 52577 | Oskaloosa | Mahaska County |
| 52580 | Packwood | Jefferson County |
| 52581 | Plano | Appanoose County |
| 52583 | Promise City | Wayne County |
| 52584 | Pulaski | Davis County |
| 52585 | Richland | Keokuk County |
| 52586 | Rose Hill | Mahaska County |
| 52588 | Selma | Van Buren County |
| 52590 | Seymour | Wayne County |
| 52591 | Sigourney | Keokuk County |
| 52593 | Udell | Appanoose County |
| 52594 | Unionville | Appanoose County |
| 52595 | University Park | Mahaska County |
| 52601 | Burlington | Des Moines County |
| 52619 | Argyle | Lee County |
| 52620 | Bonaparte | Van Buren County |
| 52621 | Crawfordsville | Washington County |
| 52623 | Danville | Des Moines County |
| 52624 | Denmark | Lee County |
| 52625 | Donnellson | Lee County |
| 52626 | Farmington | Lee County |
| 52627 | Fort Madison | Lee County |
| 52630 | Hillsboro | Lee County |
| 52631 | Houghton | Lee County |
| 52632 | Keokuk | Lee County |
| 52635 | Lockridge | Jefferson County |
| 52637 | Mediapolis | Des Moines County |
| 52638 | Middletown | Des Moines County |
| 52639 | Montrose | Lee County |
| 52640 | Morning Sun | Louisa County |
| 52641 | Mount Pleasant | Henry County |
| 52642 · PO box/unique | Rome | Henry County |
| 52644 | Mount Union | Henry County |
| 52645 | New London | Henry County |
| 52646 | Oakville | Des Moines County |
| 52647 | Olds | Henry County |
| 52648 · PO box/unique | Pilot Grove | Lee County |
| 52649 | Salem | Henry County |
| 52650 | Sperry | Des Moines County |
| 52651 | Stockport | Van Buren County |
| 52652 | Swedesburg | Henry County |
| 52653 | Wapello | Louisa County |
| 52654 | Wayland | Henry County |
| 52655 | West Burlington | Des Moines County |
| 52656 | West Point | Lee County |
| 52657 | Saint Paul | Lee County |
| 52658 | Wever | Lee County |
| 52659 | Winfield | Henry County |
| 52660 | Yarmouth | Des Moines County |
| 52701 | Andover | Clinton County |
| 52720 | Atalissa | Muscatine County |
| 52721 | Bennett | Cedar County |
| 52722 | Bettendorf | Scott County |
| 52726 | Blue Grass | Scott County |
| 52727 | Bryant | Clinton County |
| 52728 | Buffalo | Scott County |
| 52729 | Calamus | Clinton County |
| 52730 | Camanche | Clinton County |
| 52731 | Charlotte | Clinton County |
| 52732 | Clinton | Clinton County |
| 52733 · PO box/unique | Clinton | Clinton County |
| 52734 · PO box/unique | Clinton | Clinton County |
| 52736 · PO box/unique | Clinton | Clinton County |
| 52737 | Columbus City | Louisa County |
| 52738 | Columbus Junction | Louisa County |
| 52739 | Conesville | Louisa County |
| 52742 | De Witt | Clinton County |
| 52745 | Dixon | Scott County |
| 52746 | Donahue | Scott County |
| 52747 | Durant | Muscatine County |
| 52748 | Eldridge | Scott County |
| 52749 | Fruitland | Muscatine County |
| 52750 | Goose Lake | Clinton County |
| 52751 | Grand Mound | Clinton County |
| 52752 | Grandview | Louisa County |
| 52753 | Le Claire | Scott County |
| 52754 | Letts | Muscatine County |
| 52755 | Lone Tree | Johnson County |
| 52756 | Long Grove | Scott County |
| 52757 | Low Moor | Clinton County |
| 52758 | Mc Causland | Scott County |
| 52759 | Montpelier | Muscatine County |
| 52760 | Moscow | Muscatine County |
| 52761 | Muscatine | Muscatine County |
| 52765 | New Liberty | Scott County |
| 52766 | Nichols | Muscatine County |
| 52767 | Pleasant Valley | Scott County |
| 52768 | Princeton | Scott County |
| 52769 | Stockton | Scott County |
| 52771 | Teeds Grove | Clinton County |
| 52772 | Tipton | Cedar County |
| 52773 | Walcott | Scott County |
| 52774 | Welton | Clinton County |
| 52776 | West Liberty | Muscatine County |
| 52777 | Wheatland | Clinton County |
| 52778 | Wilton | Cedar County |
| 52801 | Davenport | Scott County |
| 52802 | Davenport | Scott County |
| 52803 | Davenport | Scott County |
| 52804 | Davenport | Scott County |
| 52805 · PO box/unique | Davenport | Scott County |
| 52806 | Davenport | Scott County |
| 52807 | Davenport | Scott County |
| 52808 · PO box/unique | Davenport | Scott County |
| 52809 · PO box/unique | Davenport | Scott County |