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| County | City | Zip codes |
|---|
| Warren | Ackworth | 50001 |
| Adair | Adair | 50002 |
| Dallas | Adel | 50003 |
| Marshall | Albion | 50005 |
| Hardin | Alden | 50006 |
| Polk | Alleman | 50007 |
| Wayne | Allerton | 50008 |
| Polk | Altoona | 50009 |
| Story | Ames | 50010 |
| Story | Ames | 50011 |
| Story | Ames | 50012 |
| Story | Ames | 50013 |
| Story | Ames | 50014 |
| Polk | Ankeny | 50015 |
| Cass | Anita | 50020 |
| Polk | Ankeny | 50021 |
| Cass | Atlantic | 50022 |
| Audubon | Audubon | 50025 |
| Guthrie | Bagley | 50026 |
| Mahaska | Barnes City | 50027 |
| Jasper | Baxter | 50028 |
| Guthrie | Bayard | 50029 |
| Boone | Beaver | 50031 |
| Polk | Berwick | 50032 |
| Madison | Bevington | 50033 |
| Hamilton | Blairsburg | 50034 |
| Polk | Bondurant | 50035 |
| Boone | Boone | 50036 |
| Boone | Boone | 50037 |
| Dallas | Booneville | 50038 |
| Dallas | Bouton | 50039 |
| Boone | Boxholm | 50040 |
| Franklin | Bradford | 50041 |
| Audubon | Brayton | 50042 |
| Hardin | Buckeye | 50043 |
| Marion | Bussey | 50044 |
| Story | Cambridge | 50046 |
| Warren | Carlisle | 50047 |
| Guthrie | Casey | 50048 |
| Lucas | Chariton | 50049 |
| Greene | Churdan | 50050 |
| Marshall | Clemons | 50051 |
| Wayne | Clio | 50052 |
| Jasper | Colfax | 50054 |
| Story | Collins | 50055 |
| Story | Colo | 50056 |
| Marion | Columbia | 50057 |
| Carroll | Coon Rapids | 50058 |
| Greene | Cooper | 50059 |
| Wayne | Corydon | 50060 |
| Warren | Cumming | 50061 |
| Marion | Dallas | 50062 |
| Dallas | Dallas Center | 50063 |
| Greene | Dana | 50064 |
| Decatur | Davis City | 50065 |
| Dallas | Dawson | 50066 |
| Decatur | Decatur | 50067 |
| Lucas | Derby | 50068 |
| Dallas | De Soto | 50069 |
| Dallas | Dexter | 50070 |
| Wright | Dows | 50071 |
| Madison | Earlham | 50072 |
| Polk | Elkhart | 50073 |
| Ringgold | Ellston | 50074 |
| Hamilton | Ellsworth | 50075 |
| Audubon | Exira | 50076 |
| Marshall | Ferguson | 50078 |
| Wright | Galt | 50101 |
| Hardin | Garden City | 50102 |
| Decatur | Garden Grove | 50103 |
| Keokuk | Gibson | 50104 |
| Story | Gilbert | 50105 |
| Marshall | Gilman | 50106 |
| Greene | Grand Junction | 50107 |
| Decatur | Grand River | 50108 |
| Dallas | Granger | 50109 |
| Audubon | Gray | 50110 |
| Polk | Grimes | 50111 |
| Poweshiek | Grinnell | 50112 |
| Guthrie | Guthrie Center | 50115 |
| Marion | Hamilton | 50116 |
| Audubon | Hamlin | 50117 |
| Warren | Hartford | 50118 |
| Marion | Harvey | 50119 |
| Marshall | Haverhill | 50120 |
| Hardin | Hubbard | 50122 |
| Wayne | Humeston | 50123 |
| Story | Huxley | 50124 |
| Warren | Indianola | 50125 |
| Hardin | Iowa Falls | 50126 |
| Jasper | Ira | 50127 |
| Guthrie | Jamaica | 50128 |
| Greene | Jefferson | 50129 |
| Hamilton | Jewell | 50130 |
| Polk | Johnston | 50131 |
| Hamilton | Kamrar | 50132 |
| Ringgold | Kellerton | 50133 |
| Story | Kelley | 50134 |
| Jasper | Kellogg | 50135 |
| Keokuk | Keswick | 50136 |
| Jasper | Killduff | 50137 |
| Marion | Knoxville | 50138 |
| Warren | Lacona | 50139 |
| Decatur | Lamoni | 50140 |
| Marshall | Laurel | 50141 |
| Marshall | Le Grand | 50142 |
| Mahaska | Leighton | 50143 |
| Decatur | Leon | 50144 |
| Warren | Liberty Center | 50145 |
| Dallas | Linden | 50146 |
| Wayne | Lineville | 50147 |
| Marshall | Liscomb | 50148 |
| Union | Lorimor | 50149 |
| Monroe | Lovilia | 50150 |
| Lucas | Lucas | 50151 |
| Boone | Luther | 50152 |
| Jasper | Lynnville | 50153 |
| Story | Mc Callsburg | 50154 |
| Madison | Macksburg | 50155 |
| Boone | Madrid | 50156 |
| Poweshiek | Malcom | 50157 |
| Marshall | Marshalltown | 50158 |
| Warren | Martensdale | 50160 |
| Story | Maxwell | 50161 |
| Marshall | Melbourne | 50162 |
| Marion | Melcher | 50163 |
| Guthrie | Menlo | 50164 |
| Wayne | Millerton | 50165 |
| Warren | Milo | 50166 |
| Dallas | Minburn | 50167 |
| Jasper | Mingo | 50168 |
| Polk | Mitchellville | 50169 |
| Jasper | Monroe | 50170 |
| Poweshiek | Montezuma | 50171 |
| Tama | Montour | 50173 |
| Clarke | Murray | 50174 |
| Poweshiek | Grinnell | 50177 |
| Marion | Knoxville | 50197 |
| Marion | Knoxville | 50198 |
| Story | Nevada | 50201 |
| Hardin | New Providence | 50206 |
| Mahaska | New Sharon | 50207 |
| Jasper | Newton | 50208 |
| Warren | New Virginia | 50210 |
| Warren | Norwalk | 50211 |
| Boone | Ogden | 50212 |
| Clarke | Osceola | 50213 |
| Marion | Otley | 50214 |
| Guthrie | Panora | 50216 |
| Greene | Paton | 50217 |
| Madison | Patterson | 50218 |
| Marion | Pella | 50219 |
| Dallas | Perry | 50220 |
| Madison | Peru | 50222 |
| Boone | Pilot Mound | 50223 |
| Marion | Pleasantville | 50225 |
| Polk | Polk City | 50226 |
| Franklin | Popejoy | 50227 |
| Jasper | Prairie City | 50228 |
| Warren | Prole | 50229 |
| Hardin | Radcliffe | 50230 |
| Hamilton | Randall | 50231 |
| Jasper | Reasnor | 50232 |
| Dallas | Redfield | 50233 |
| Marshall | Rhodes | 50234 |
| Greene | Rippey | 50235 |
| Story | Roland | 50236 |
| Polk | Runnells | 50237 |
| Lucas | Russell | 50238 |
| Marshall | Saint Anthony | 50239 |
| Madison | Saint Charles | 50240 |
| Warren | Saint Marys | 50241 |
| Poweshiek | Searsboro | 50242 |
| Polk | Sheldahl | 50243 |
| Story | Slater | 50244 |
| Hamilton | Stanhope | 50246 |
| Marshall | State Center | 50247 |
| Story | Story City | 50248 |
| Hamilton | Stratford | 50249 |
| Guthrie | Stuart | 50250 |
| Jasper | Sully | 50251 |
| Marion | Swan | 50252 |
| Union | Thayer | 50254 |
| Keokuk | Thornburg | 50255 |
| Marion | Tracy | 50256 |
| Madison | Truro | 50257 |
| Hardin | Union | 50258 |
| Hardin | Gifford | 50259 |
| Dallas | Van Meter | 50261 |
| Decatur | Van Wert | 50262 |
| Dallas | Waukee | 50263 |
| Decatur | Weldon | 50264 |
| Polk | West Des Moines | 50265 |
| Polk | West Des Moines | 50266 |
| Keokuk | What Cheer | 50268 |
| Hardin | Whitten | 50269 |
| Hamilton | Williams | 50271 |
| Lucas | Williamson | 50272 |
| Madison | Winterset | 50273 |
| Cass | Wiota | 50274 |
| Clarke | Woodburn | 50275 |
| Dallas | Woodward | 50276 |
| Guthrie | Yale | 50277 |
| Story | Zearing | 50278 |
| Polk | Des Moines | 50301 |
| Polk | Des Moines | 50302 |
| Polk | Des Moines | 50303 |
| Polk | Des Moines | 50304 |
| Polk | Des Moines | 50305 |
| Polk | Des Moines | 50306 |
| Polk | Des Moines | 50307 |
| Polk | Des Moines | 50308 |
| Polk | Des Moines | 50309 |
| Polk | Des Moines | 50310 |
| Polk | Des Moines | 50311 |
| Polk | Des Moines | 50312 |
| Polk | Des Moines | 50313 |
| Polk | Des Moines | 50314 |
| Polk | Des Moines | 50315 |
| Polk | Des Moines | 50316 |
| Polk | Des Moines | 50317 |
| Polk | Des Moines | 50318 |
| Polk | Des Moines | 50319 |
| Polk | Des Moines | 50320 |
| Polk | Des Moines | 50321 |
| Polk | Urbandale | 50322 |
| Polk | Urbandale | 50323 |
| Polk | Clive | 50325 |
| Polk | Des Moines | 50328 |
| Polk | Des Moines | 50329 |
| Polk | Des Moines | 50330 |
| Polk | Des Moines | 50331 |
| Polk | Des Moines | 50332 |
| Polk | Des Moines | 50333 |
| Polk | Des Moines | 50334 |
| Polk | Des Moines | 50335 |
| Polk | Des Moines | 50336 |
| Polk | Des Moines | 50338 |
| Polk | Des Moines | 50339 |
| Polk | Des Moines | 50340 |
| Polk | Des Moines | 50347 |
| Polk | Des Moines | 50350 |
| Polk | Des Moines | 50359 |
| Polk | Des Moines | 50360 |
| Polk | Des Moines | 50361 |
| Polk | Des Moines | 50362 |
| Polk | Des Moines | 50363 |
| Polk | Des Moines | 50364 |
| Polk | Des Moines | 50367 |
| Polk | Des Moines | 50368 |
| Polk | Des Moines | 50369 |
| Polk | Des Moines | 50380 |
| Polk | Des Moines | 50381 |
| Polk | Des Moines | 50391 |
| Polk | Des Moines | 50392 |
| Polk | Des Moines | 50393 |
| Polk | Des Moines | 50394 |
| Polk | Des Moines | 50395 |
| Polk | Des Moines | 50396 |
| Polk | Des Moines | 50397 |
| Polk | West Des Moines | 50398 |
| Cerro Gordo | Mason City | 50401 |
| Cerro Gordo | Mason City | 50402 |
| Franklin | Alexander | 50420 |
| Wright | Belmond | 50421 |
| Hancock | Britt | 50423 |
| Winnebago | Buffalo Center | 50424 |
| Mitchell | Carpenter | 50426 |
| Franklin | Chapin | 50427 |
| Cerro Gordo | Clear Lake | 50428 |
| Hancock | Corwith | 50430 |
| Franklin | Coulter | 50431 |
| Hancock | Crystal Lake | 50432 |
| Cerro Gordo | Dougherty | 50433 |
| Worth | Fertile | 50434 |
| Floyd | Floyd | 50435 |
| Winnebago | Forest City | 50436 |
| Hancock | Garner | 50438 |
| Hancock | Goodell | 50439 |
| Worth | Grafton | 50440 |
| Franklin | Hampton | 50441 |
| Worth | Hanlontown | 50444 |
| Worth | Joice | 50446 |
| Hancock | Kanawha | 50447 |
| Worth | Kensett | 50448 |
| Hancock | Klemme | 50449 |
| Winnebago | Lake Mills | 50450 |
| Kossuth | Lakota | 50451 |
| Franklin | Latimer | 50452 |
| Winnebago | Leland | 50453 |
| Mitchell | Little Cedar | 50454 |
| Mitchell | Mc Intire | 50455 |
| Worth | Manly | 50456 |
| Cerro Gordo | Meservey | 50457 |
| Floyd | Nora Springs | 50458 |
| Worth | Northwood | 50459 |
| Mitchell | Orchard | 50460 |
| Mitchell | Osage | 50461 |
| Cerro Gordo | Plymouth | 50464 |
| Winnebago | Rake | 50465 |
| Howard | Riceville | 50466 |
| Cerro Gordo | Rock Falls | 50467 |
| Floyd | Rockford | 50468 |
| Cerro Gordo | Rockwell | 50469 |
| Wright | Rowan | 50470 |
| Floyd | Rudd | 50471 |
| Mitchell | Saint Ansgar | 50472 |
| Winnebago | Scarville | 50473 |
| Franklin | Sheffield | 50475 |
| Mitchell | Stacyville | 50476 |
| Cerro Gordo | Swaledale | 50477 |
| Winnebago | Thompson | 50478 |
| Cerro Gordo | Thornton | 50479 |
| Kossuth | Titonka | 50480 |
| Mitchell | Toeterville | 50481 |
| Cerro Gordo | Ventura | 50482 |
| Kossuth | Wesley | 50483 |
| Hancock | Woden | 50484 |
| Webster | Fort Dodge | 50501 |
| Buena Vista | Albert City | 50510 |
| Kossuth | Algona | 50511 |
| Emmet | Armstrong | 50514 |
| Palo Alto | Ayrshire | 50515 |
| Webster | Badger | 50516 |
| Kossuth | Bancroft | 50517 |
| Webster | Barnum | 50518 |
| Humboldt | Bode | 50519 |
| Humboldt | Bradgate | 50520 |
| Webster | Burnside | 50521 |
| Kossuth | Burt | 50522 |
| Webster | Callender | 50523 |
| Webster | Clare | 50524 |
| Wright | Clarion | 50525 |
| Wright | Clarion | 50526 |
| Palo Alto | Curlew | 50527 |
| Palo Alto | Cylinder | 50528 |
| Humboldt | Dakota City | 50529 |
| Webster | Dayton | 50530 |
| Emmet | Dolliver | 50531 |
| Webster | Duncombe | 50532 |
| Wright | Eagle Grove | 50533 |
| Sac | Early | 50535 |
| Palo Alto | Emmetsburg | 50536 |
| Calhoun | Farnhamville | 50538 |
| Kossuth | Fenton | 50539 |
| Pocahontas | Fonda | 50540 |
| Humboldt | Gilmore City | 50541 |
| Wright | Goldfield | 50542 |
| Webster | Gowrie | 50543 |
| Webster | Harcourt | 50544 |
| Humboldt | Hardy | 50545 |
| Pocahontas | Havelock | 50546 |
| Humboldt | Humboldt | 50548 |
| Calhoun | Jolley | 50551 |
| Calhoun | Knierim | 50552 |
| Pocahontas | Laurens | 50554 |
| Kossuth | Ledyard | 50556 |
| Webster | Lehigh | 50557 |
| Humboldt | Livermore | 50558 |
| Kossuth | Lone Rock | 50559 |
| Kossuth | Lu Verne | 50560 |
| Calhoun | Lytton | 50561 |
| Palo Alto | Mallard | 50562 |
| Calhoun | Manson | 50563 |
| Buena Vista | Marathon | 50565 |
| Webster | Moorland | 50566 |
| Sac | Nemaha | 50567 |
| Buena Vista | Newell | 50568 |
| Webster | Otho | 50569 |
| Humboldt | Ottosen | 50570 |
| Pocahontas | Palmer | 50571 |
| Pocahontas | Plover | 50573 |
| Pocahontas | Pocahontas | 50574 |
| Calhoun | Pomeroy | 50575 |
| Buena Vista | Rembrandt | 50576 |
| Humboldt | Renwick | 50577 |
| Emmet | Ringsted | 50578 |
| Calhoun | Rockwell City | 50579 |
| Pocahontas | Rolfe | 50581 |
| Humboldt | Rutland | 50582 |
| Sac | Sac City | 50583 |
| Buena Vista | Sioux Rapids | 50585 |
| Calhoun | Somers | 50586 |
| Calhoun | Rinard | 50587 |
| Buena Vista | Storm Lake | 50588 |
| Kossuth | Swea City | 50590 |
| Humboldt | Thor | 50591 |
| Buena Vista | Truesdale | 50592 |
| Pocahontas | Varina | 50593 |
| Webster | Vincent | 50594 |
| Hamilton | Webster City | 50595 |
| Palo Alto | West Bend | 50597 |
| Kossuth | Whittemore | 50598 |
| Wright | Woolstock | 50599 |
| Hardin | Ackley | 50601 |
| Butler | Allison | 50602 |
| Chickasaw | Alta Vista | 50603 |
| Butler | Aplington | 50604 |
| Butler | Aredale | 50605 |
| Fayette | Arlington | 50606 |
| Buchanan | Aurora | 50607 |
| Butler | Austinville | 50608 |
| Grundy | Beaman | 50609 |
| Butler | Bristow | 50611 |
| Tama | Buckingham | 50612 |
| Black Hawk | Cedar Falls | 50613 |
| Black Hawk | Cedar Falls | 50614 |
| Floyd | Charles City | 50616 |
| Butler | Clarksville | 50619 |
| Floyd | Colwell | 50620 |
| Grundy | Conrad | 50621 |
| Bremer | Denver | 50622 |
| Black Hawk | Dewar | 50623 |
| Grundy | Dike | 50624 |
| Butler | Dumont | 50625 |
| Black Hawk | Dunkerton | 50626 |
| Hardin | Eldora | 50627 |
| Howard | Elma | 50628 |
| Buchanan | Fairbank | 50629 |
| Chickasaw | Fredericksburg | 50630 |
| Bremer | Frederika | 50631 |
| Tama | Garwin | 50632 |
| Franklin | Geneva | 50633 |
| Black Hawk | Gilbertville | 50634 |
| Tama | Gladbrook | 50635 |
| Butler | Greene | 50636 |
| Grundy | Grundy Center | 50638 |
| Buchanan | Hazleton | 50641 |
| Grundy | Holland | 50642 |
| Black Hawk | Hudson | 50643 |
| Buchanan | Independence | 50644 |
| Chickasaw | Ionia | 50645 |
| Bremer | Janesville | 50647 |
| Buchanan | Jesup | 50648 |
| Butler | Kesley | 50649 |
| Buchanan | Lamont | 50650 |
| Black Hawk | La Porte City | 50651 |
| Tama | Lincoln | 50652 |
| Floyd | Marble Rock | 50653 |
| Delaware | Masonville | 50654 |
| Fayette | Maynard | 50655 |
| Grundy | Morrison | 50657 |
| Chickasaw | Nashua | 50658 |
| Chickasaw | New Hampton | 50659 |
| Butler | New Hartford | 50660 |
| Chickasaw | North Washington | 50661 |
| Fayette | Oelwein | 50662 |
| Fayette | Oran | 50664 |
| Butler | Parkersburg | 50665 |
| Bremer | Plainfield | 50666 |
| Black Hawk | Raymond | 50667 |
| Bremer | Readlyn | 50668 |
| Grundy | Reinbeck | 50669 |
| Butler | Shell Rock | 50670 |
| Buchanan | Stanley | 50671 |
| Hardin | Steamboat Rock | 50672 |
| Grundy | Stout | 50673 |
| Bremer | Sumner | 50674 |
| Tama | Traer | 50675 |
| Bremer | Tripoli | 50676 |
| Bremer | Waverly | 50677 |
| Grundy | Wellsburg | 50680 |
| Fayette | Westgate | 50681 |
| Buchanan | Winthrop | 50682 |
| Black Hawk | Waterloo | 50701 |
| Black Hawk | Waterloo | 50702 |
| Black Hawk | Waterloo | 50703 |
| Black Hawk | Waterloo | 50704 |
| Black Hawk | Waterloo | 50706 |
| Black Hawk | Evansdale | 50707 |
| Black Hawk | Waterloo | 50799 |
| Union | Creston | 50801 |
| Union | Afton | 50830 |
| Union | Arispe | 50831 |
| Taylor | Bedford | 50833 |
| Ringgold | Benton | 50835 |
| Taylor | Blockton | 50836 |
| Adair | Bridgewater | 50837 |
| Adams | Carbon | 50839 |
| Taylor | Clearfield | 50840 |
| Adams | Corning | 50841 |
| Union | Cromwell | 50842 |
| Cass | Cumberland | 50843 |
| Ringgold | Diagonal | 50845 |
| Adair | Fontanelle | 50846 |
| Montgomery | Grant | 50847 |
| Taylor | Gravity | 50848 |
| Adair | Greenfield | 50849 |
| Taylor | Lenox | 50851 |
| Cass | Massena | 50853 |
| Ringgold | Mount Ayr | 50854 |
| Adams | Nodaway | 50857 |
| Adair | Orient | 50858 |
| Adams | Prescott | 50859 |
| Ringgold | Redding | 50860 |
| Union | Shannon City | 50861 |
| Taylor | Sharpsburg | 50862 |
| Ringgold | Tingley | 50863 |
| Montgomery | Villisca | 50864 |
| Polk | Des Moines | 50936 |
| Polk | Des Moines | 50940 |
| Polk | Des Moines | 50947 |
| Polk | Des Moines | 50950 |
| Polk | Des Moines | 50980 |
| Polk | Des Moines | 50981 |
| Plymouth | Akron | 51001 |
| Buena Vista | Alta | 51002 |
| Sioux | Alton | 51003 |
| Woodbury | Anthon | 51004 |
| Cherokee | Aurelia | 51005 |
| Ida | Battle Creek | 51006 |
| Woodbury | Bronson | 51007 |
| Plymouth | Brunsville | 51008 |
| Obrien | Calumet | 51009 |
| Monona | Castana | 51010 |
| Sioux | Chatsworth | 51011 |
| Cherokee | Cherokee | 51012 |
| Cherokee | Cleghorn | 51014 |
| Woodbury | Climbing Hill | 51015 |
| Woodbury | Correctionville | 51016 |
| Plymouth | Craig | 51017 |
| Woodbury | Cushing | 51018 |
| Woodbury | Danbury | 51019 |
| Ida | Galva | 51020 |
| Sioux | Granville | 51022 |
| Sioux | Hawarden | 51023 |
| Plymouth | Hinton | 51024 |
| Ida | Holstein | 51025 |
| Woodbury | Hornick | 51026 |
| Sioux | Ireton | 51027 |
| Plymouth | Kingsley | 51028 |
| Cherokee | Larrabee | 51029 |
| Woodbury | Lawton | 51030 |
| Plymouth | Le Mars | 51031 |
| Buena Vista | Linn Grove | 51033 |
| Monona | Mapleton | 51034 |
| Cherokee | Marcus | 51035 |
| Sioux | Maurice | 51036 |
| Cherokee | Meriden | 51037 |
| Plymouth | Merrill | 51038 |
| Woodbury | Moville | 51039 |
| Monona | Onawa | 51040 |
| Sioux | Orange City | 51041 |
| Woodbury | Oto | 51044 |
| Plymouth | Oyens | 51045 |
| Obrien | Paullina | 51046 |
| Clay | Peterson | 51047 |
| Woodbury | Pierson | 51048 |
| Cherokee | Quimby | 51049 |
| Plymouth | Remsen | 51050 |
| Monona | Rodney | 51051 |
| Woodbury | Salix | 51052 |
| Sac | Schaller | 51053 |
| Woodbury | Sergeant Bluff | 51054 |
| Woodbury | Sloan | 51055 |
| Woodbury | Smithland | 51056 |
| Plymouth | Struble | 51057 |
| Obrien | Sutherland | 51058 |
| Monona | Turin | 51059 |
| Monona | Ute | 51060 |
| Cherokee | Washta | 51061 |
| Plymouth | Westfield | 51062 |
| Monona | Whiting | 51063 |
| Woodbury | Sioux City | 51101 |
| Woodbury | Sioux City | 51102 |
| Woodbury | Sioux City | 51103 |
| Woodbury | Sioux City | 51104 |
| Woodbury | Sioux City | 51105 |
| Woodbury | Sioux City | 51106 |
| Woodbury | Sioux City | 51108 |
| Woodbury | Sioux City | 51109 |
| Woodbury | Sioux City | 51111 |
| Obrien | Sheldon | 51201 |
| Lyon | Alvord | 51230 |
| Obrien | Archer | 51231 |
| Osceola | Ashton | 51232 |
| Sioux | Boyden | 51234 |
| Lyon | Doon | 51235 |
| Lyon | George | 51237 |
| Sioux | Hospers | 51238 |
| Sioux | Hull | 51239 |
| Lyon | Inwood | 51240 |
| Lyon | Larchwood | 51241 |
| Lyon | Lester | 51242 |
| Lyon | Little Rock | 51243 |
| Sioux | Matlock | 51244 |
| Obrien | Primghar | 51245 |
| Lyon | Rock Rapids | 51246 |
| Sioux | Rock Valley | 51247 |
| Obrien | Sanborn | 51248 |
| Osceola | Sibley | 51249 |
| Sioux | Sioux Center | 51250 |
| Clay | Spencer | 51301 |
| Osceola | Allendorf | 51330 |
| Dickinson | Arnolds Park | 51331 |
| Clay | Dickens | 51333 |
| Emmet | Estherville | 51334 |
| Clay | Everly | 51338 |
| Clay | Fostoria | 51340 |
| Clay | Gillett Grove | 51341 |
| Palo Alto | Graettinger | 51342 |
| Clay | Greenville | 51343 |
| Emmet | Gruver | 51344 |
| Osceola | Harris | 51345 |
| Obrien | Hartley | 51346 |
| Dickinson | Lake Park | 51347 |
| Osceola | May City | 51349 |
| Osceola | Melvin | 51350 |
| Dickinson | Milford | 51351 |
| Osceola | Ocheyedan | 51354 |
| Dickinson | Okoboji | 51355 |
| Clay | Royal | 51357 |
| Palo Alto | Ruthven | 51358 |
| Dickinson | Spirit Lake | 51360 |
| Dickinson | Superior | 51363 |
| Dickinson | Terril | 51364 |
| Emmet | Wallingford | 51365 |
| Clay | Webb | 51366 |
| Carroll | Carroll | 51401 |
| Carroll | Arcadia | 51430 |
| Ida | Arthur | 51431 |
| Crawford | Aspinwall | 51432 |
| Sac | Auburn | 51433 |
| Carroll | Breda | 51436 |
| Crawford | Charter Oak | 51439 |
| Carroll | Dedham | 51440 |
| Crawford | Deloit | 51441 |
| Crawford | Denison | 51442 |
| Carroll | Glidden | 51443 |
| Carroll | Halbur | 51444 |
| Ida | Ida Grove | 51445 |
| Shelby | Irwin | 51446 |
| Shelby | Kirkman | 51447 |
| Crawford | Kiron | 51448 |
| Calhoun | Lake City | 51449 |
| Sac | Lake View | 51450 |
| Carroll | Lanesboro | 51451 |
| Carroll | Lidderdale | 51452 |
| Calhoun | Lohrville | 51453 |
| Crawford | Manilla | 51454 |
| Carroll | Manning | 51455 |
| Sac | Odebolt | 51458 |
| Carroll | Ralston | 51459 |
| Crawford | Ricketts | 51460 |
| Crawford | Schleswig | 51461 |
| Greene | Scranton | 51462 |
| Carroll | Templeton | 51463 |
| Crawford | Vail | 51465 |
| Sac | Wall Lake | 51466 |
| Crawford | Westside | 51467 |
| Pottawattamie | Council Bluffs | 51501 |
| Pottawattamie | Council Bluffs | 51502 |
| Pottawattamie | Council Bluffs | 51503 |
| Pottawattamie | Carter Lake | 51510 |
| Crawford | Arion | 51520 |
| Pottawattamie | Avoca | 51521 |
| Monona | Blencoe | 51523 |
| Pottawattamie | Carson | 51525 |
| Pottawattamie | Crescent | 51526 |
| Shelby | Defiance | 51527 |
| Crawford | Dow City | 51528 |
| Harrison | Dunlap | 51529 |
| Shelby | Earling | 51530 |
| Shelby | Elk Horn | 51531 |
| Montgomery | Elliott | 51532 |
| Mills | Emerson | 51533 |
| Mills | Glenwood | 51534 |
| Cass | Griswold | 51535 |
| Pottawattamie | Hancock | 51536 |
| Shelby | Harlan | 51537 |
| Mills | Hastings | 51540 |
| Mills | Henderson | 51541 |
| Pottawattamie | Honey Creek | 51542 |
| Audubon | Kimballton | 51543 |
| Cass | Lewis | 51544 |
| Harrison | Little Sioux | 51545 |
| Harrison | Logan | 51546 |
| Pottawattamie | Mc Clelland | 51548 |
| Pottawattamie | Macedonia | 51549 |
| Harrison | Magnolia | 51550 |
| Mills | Malvern | 51551 |
| Cass | Marne | 51552 |
| Pottawattamie | Minden | 51553 |
| Mills | Mineola | 51554 |
| Harrison | Missouri Valley | 51555 |
| Harrison | Modale | 51556 |
| Harrison | Mondamin | 51557 |
| Monona | Moorhead | 51558 |
| Pottawattamie | Neola | 51559 |
| Pottawattamie | Oakland | 51560 |
| Mills | Pacific Junction | 51561 |
| Shelby | Panama | 51562 |
| Harrison | Persia | 51563 |
| Harrison | Pisgah | 51564 |
| Shelby | Portsmouth | 51565 |
| Montgomery | Red Oak | 51566 |
| Pottawattamie | Shelby | 51570 |
| Mills | Silver City | 51571 |
| Monona | Soldier | 51572 |
| Montgomery | Stanton | 51573 |
| Shelby | Tennant | 51574 |
| Pottawattamie | Treynor | 51575 |
| Pottawattamie | Underwood | 51576 |
| Pottawattamie | Walnut | 51577 |
| Shelby | Westphalia | 51578 |
| Harrison | Woodbine | 51579 |
| Montgomery | Red Oak | 51591 |
| Shelby | Harlan | 51593 |
| Page | Shenandoah | 51601 |
| Page | Shenandoah | 51602 |
| Page | Shenandoah | 51603 |
| Page | Blanchard | 51630 |
| Page | Braddyville | 51631 |
| Page | Clarinda | 51632 |
| Page | Coin | 51636 |
| Page | College Springs | 51637 |
| Page | Essex | 51638 |
| Fremont | Farragut | 51639 |
| Fremont | Hamburg | 51640 |
| Fremont | Imogene | 51645 |
| Taylor | New Market | 51646 |
| Page | Northboro | 51647 |
| Fremont | Percival | 51648 |
| Fremont | Randolph | 51649 |
| Fremont | Riverton | 51650 |
| Page | Shambaugh | 51651 |
| Fremont | Sidney | 51652 |
| Fremont | Tabor | 51653 |
| Fremont | Thurman | 51654 |
| Page | Yorktown | 51656 |
| Dubuque | Dubuque | 52001 |
| Dubuque | Dubuque | 52002 |
| Dubuque | Dubuque | 52003 |
| Dubuque | Dubuque | 52004 |
| Jackson | Andrew | 52030 |
| Jackson | Bellevue | 52031 |
| Dubuque | Bernard | 52032 |
| Dubuque | Cascade | 52033 |
| Delaware | Colesburg | 52035 |
| Delaware | Delaware | 52036 |
| Clinton | Delmar | 52037 |
| Delaware | Dundee | 52038 |
| Dubuque | Durango | 52039 |
| Dubuque | Dyersville | 52040 |
| Delaware | Earlville | 52041 |
| Clayton | Edgewood | 52042 |
| Clayton | Elkader | 52043 |
| Clayton | Elkport | 52044 |
| Dubuque | Epworth | 52045 |
| Dubuque | Farley | 52046 |
| Clayton | Farmersburg | 52047 |
| Clayton | Garber | 52048 |
| Clayton | Garnavillo | 52049 |
| Delaware | Greeley | 52050 |
| Clayton | Guttenberg | 52052 |
| Dubuque | Holy Cross | 52053 |
| Jackson | La Motte | 52054 |
| Clayton | Littleport | 52055 |
| Dubuque | Luxemburg | 52056 |
| Delaware | Manchester | 52057 |
| Jackson | Maquoketa | 52060 |
| Jackson | Miles | 52064 |
| Dubuque | New Vienna | 52065 |
| Clayton | North Buena Vista | 52066 |
| Dubuque | Peosta | 52068 |
| Jackson | Preston | 52069 |
| Jackson | Sabula | 52070 |
| Jackson | Saint Donatus | 52071 |
| Clayton | Saint Olaf | 52072 |
| Dubuque | Sherrill | 52073 |
| Jackson | Spragueville | 52074 |
| Jackson | Springbrook | 52075 |
| Clayton | Strawberry Point | 52076 |
| Clayton | Volga | 52077 |
| Dubuque | Worthington | 52078 |
| Dubuque | Zwingle | 52079 |
| Dubuque | Dubuque | 52099 |
| Winneshiek | Decorah | 52101 |
| Winneshiek | Burr Oak | 52131 |
| Winneshiek | Calmar | 52132 |
| Winneshiek | Castalia | 52133 |
| Howard | Chester | 52134 |
| Fayette | Clermont | 52135 |
| Howard | Cresco | 52136 |
| Allamakee | Dorchester | 52140 |
| Fayette | Elgin | 52141 |
| Fayette | Fayette | 52142 |
| Winneshiek | Fort Atkinson | 52144 |
| Allamakee | Harpers Ferry | 52146 |
| Fayette | Hawkeye | 52147 |
| Winneshiek | Highlandville | 52149 |
| Allamakee | Lansing | 52151 |
| Chickasaw | Lawler | 52154 |
| Howard | Lime Springs | 52155 |
| Clayton | Luana | 52156 |
| Clayton | Mc Gregor | 52157 |
| Clayton | Marquette | 52158 |
| Clayton | Monona | 52159 |
| Allamakee | New Albin | 52160 |
| Winneshiek | Ossian | 52161 |
| Allamakee | Postville | 52162 |
| Howard | Protivin | 52163 |
| Fayette | Randalia | 52164 |
| Winneshiek | Ridgeway | 52165 |
| Fayette | Saint Lucas | 52166 |
| Winneshiek | Spillville | 52168 |
| Fayette | Wadena | 52169 |
| Allamakee | Waterville | 52170 |
| Fayette | Waucoma | 52171 |
| Allamakee | Waukon | 52172 |
| Fayette | West Union | 52175 |
| Washington | Ainsworth | 52201 |
| Linn | Alburnett | 52202 |
| Iowa | Amana | 52203 |
| Iowa | Amana | 52204 |
| Jones | Anamosa | 52205 |
| Benton | Atkins | 52206 |
| Jackson | Baldwin | 52207 |
| Benton | Belle Plaine | 52208 |
| Benton | Blairstown | 52209 |
| Buchanan | Brandon | 52210 |
| Poweshiek | Brooklyn | 52211 |
| Jones | Center Junction | 52212 |
| Linn | Center Point | 52213 |
| Linn | Central City | 52214 |
| Tama | Chelsea | 52215 |
| Cedar | Clarence | 52216 |
| Tama | Clutier | 52217 |
| Linn | Coggon | 52218 |
| Linn | Prairieburg | 52219 |
| Iowa | Conroy | 52220 |
| Poweshiek | Guernsey | 52221 |
| Poweshiek | Deep River | 52222 |
| Delaware | Delhi | 52223 |
| Tama | Dysart | 52224 |
| Tama | Elberon | 52225 |
| Clinton | Elwood | 52226 |
| Linn | Ely | 52227 |
| Linn | Fairfax | 52228 |
| Benton | Garrison | 52229 |
| Keokuk | Harper | 52231 |
| Poweshiek | Hartwick | 52232 |
| Linn | Hiawatha | 52233 |
| Johnson | Hills | 52235 |
| Iowa | Homestead | 52236 |
| Delaware | Hopkinton | 52237 |
| Johnson | Iowa City | 52240 |
| Johnson | Coralville | 52241 |
| Johnson | Iowa City | 52242 |
| Johnson | Iowa City | 52243 |
| Johnson | Iowa City | 52244 |
| Johnson | Iowa City | 52245 |
| Johnson | Iowa City | 52246 |
| Washington | Kalona | 52247 |
| Keokuk | Keota | 52248 |
| Benton | Keystone | 52249 |
| Iowa | Ladora | 52251 |
| Jones | Langworthy | 52252 |
| Linn | Lisbon | 52253 |
| Clinton | Lost Nation | 52254 |
| Cedar | Lowden | 52255 |
| Benton | Luzerne | 52257 |
| Iowa | Marengo | 52301 |
| Linn | Marion | 52302 |
| Jones | Martelle | 52305 |
| Cedar | Mechanicsville | 52306 |
| Iowa | Middle Amana | 52307 |
| Iowa | Millersburg | 52308 |
| Jackson | Monmouth | 52309 |
| Jones | Monticello | 52310 |
| Jones | Morley | 52312 |
| Benton | Mount Auburn | 52313 |
| Linn | Mount Vernon | 52314 |
| Benton | Newhall | 52315 |
| Iowa | North English | 52316 |
| Johnson | North Liberty | 52317 |
| Benton | Norway | 52318 |
| Johnson | Oakdale | 52319 |
| Jones | Olin | 52320 |
| Jones | Onslow | 52321 |
| Johnson | Oxford | 52322 |
| Jones | Oxford Junction | 52323 |
| Linn | Palo | 52324 |
| Iowa | Parnell | 52325 |
| Buchanan | Quasqueton | 52326 |
| Washington | Riverside | 52327 |
| Linn | Robins | 52328 |
| Buchanan | Rowley | 52329 |
| Delaware | Ryan | 52330 |
| Benton | Shellsburg | 52332 |
| Johnson | Solon | 52333 |
| Iowa | South Amana | 52334 |
| Keokuk | South English | 52335 |
| Linn | Springville | 52336 |
| Cedar | Stanwood | 52337 |
| Johnson | Swisher | 52338 |
| Tama | Tama | 52339 |
| Johnson | Tiffin | 52340 |
| Linn | Toddville | 52341 |
| Tama | Toledo | 52342 |
| Linn | Troy Mills | 52344 |
| Benton | Urbana | 52345 |
| Benton | Van Horne | 52346 |
| Iowa | Victor | 52347 |
| Tama | Vining | 52348 |
| Benton | Vinton | 52349 |
| Linn | Viola | 52350 |
| Benton | Walford | 52351 |
| Linn | Walker | 52352 |
| Washington | Washington | 52353 |
| Benton | Watkins | 52354 |
| Keokuk | Webster | 52355 |
| Washington | Wellman | 52356 |
| Cedar | West Branch | 52358 |
| Washington | West Chester | 52359 |
| Iowa | Williamsburg | 52361 |
| Jones | Wyoming | 52362 |
| Linn | Cedar Rapids | 52401 |
| Linn | Cedar Rapids | 52402 |
| Linn | Cedar Rapids | 52403 |
| Linn | Cedar Rapids | 52404 |
| Linn | Cedar Rapids | 52405 |
| Linn | Cedar Rapids | 52406 |
| Linn | Cedar Rapids | 52407 |
| Linn | Cedar Rapids | 52408 |
| Linn | Cedar Rapids | 52409 |
| Linn | Cedar Rapids | 52410 |
| Linn | Cedar Rapids | 52411 |
| Linn | Cedar Rapids | 52497 |
| Linn | Cedar Rapids | 52498 |
| Linn | Cedar Rapids | 52499 |
| Wapello | Ottumwa | 52501 |
| Wapello | Agency | 52530 |
| Monroe | Albia | 52531 |
| Jefferson | Batavia | 52533 |
| Mahaska | Beacon | 52534 |
| Van Buren | Birmingham | 52535 |
| Wapello | Blakesburg | 52536 |
| Davis | Bloomfield | 52537 |
| Davis | West Grove | 52538 |
| Washington | Brighton | 52540 |
| Van Buren | Cantril | 52542 |
| Mahaska | Cedar | 52543 |
| Appanoose | Centerville | 52544 |
| Wapello | Chillicothe | 52548 |
| Appanoose | Cincinnati | 52549 |
| Keokuk | Delta | 52550 |
| Van Buren | Douds | 52551 |
| Davis | Drakesville | 52552 |
| Wapello | Eddyville | 52553 |
| Wapello | Eldon | 52554 |
| Appanoose | Exline | 52555 |
| Jefferson | Fairfield | 52556 |
| Jefferson | Fairfield | 52557 |
| Davis | Floris | 52560 |
| Mahaska | Fremont | 52561 |
| Keokuk | Hayesville | 52562 |
| Keokuk | Hedrick | 52563 |
| Van Buren | Keosauqua | 52565 |
| Wapello | Kirkville | 52566 |
| Jefferson | Libertyville | 52567 |
| Keokuk | Martinsburg | 52568 |
| Monroe | Melrose | 52569 |
| Van Buren | Milton | 52570 |
| Appanoose | Moravia | 52571 |
| Appanoose | Moulton | 52572 |
| Van Buren | Mount Sterling | 52573 |
| Appanoose | Mystic | 52574 |
| Keokuk | Ollie | 52576 |
| Mahaska | Oskaloosa | 52577 |
| Jefferson | Packwood | 52580 |
| Appanoose | Plano | 52581 |
| Wayne | Promise City | 52583 |
| Davis | Pulaski | 52584 |
| Keokuk | Richland | 52585 |
| Mahaska | Rose Hill | 52586 |
| Van Buren | Selma | 52588 |
| Wayne | Seymour | 52590 |
| Keokuk | Sigourney | 52591 |
| Appanoose | Udell | 52593 |
| Appanoose | Unionville | 52594 |
| Mahaska | University Park | 52595 |
| Des Moines | Burlington | 52601 |
| Lee | Argyle | 52619 |
| Van Buren | Bonaparte | 52620 |
| Washington | Crawfordsville | 52621 |
| Des Moines | Danville | 52623 |
| Lee | Denmark | 52624 |
| Lee | Donnellson | 52625 |
| Van Buren | Farmington | 52626 |
| Lee | Fort Madison | 52627 |
| Henry | Hillsboro | 52630 |
| Lee | Houghton | 52631 |
| Lee | Keokuk | 52632 |
| Jefferson | Lockridge | 52635 |
| Des Moines | Mediapolis | 52637 |
| Des Moines | Middletown | 52638 |
| Lee | Montrose | 52639 |
| Louisa | Morning Sun | 52640 |
| Henry | Mount Pleasant | 52641 |
| Henry | Rome | 52642 |
| Henry | Mount Union | 52644 |
| Henry | New London | 52645 |
| Louisa | Oakville | 52646 |
| Henry | Olds | 52647 |
| Lee | Pilot Grove | 52648 |
| Henry | Salem | 52649 |
| Des Moines | Sperry | 52650 |
| Van Buren | Stockport | 52651 |
| Henry | Swedesburg | 52652 |
| Louisa | Wapello | 52653 |
| Henry | Wayland | 52654 |
| Des Moines | West Burlington | 52655 |
| Lee | West Point | 52656 |
| Lee | Saint Paul | 52657 |
| Lee | Wever | 52658 |
| Henry | Winfield | 52659 |
| Des Moines | Yarmouth | 52660 |
| Clinton | Andover | 52701 |
| Muscatine | Atalissa | 52720 |
| Cedar | Bennett | 52721 |
| Scott | Bettendorf | 52722 |
| Scott | Blue Grass | 52726 |
| Clinton | Bryant | 52727 |
| Scott | Buffalo | 52728 |
| Clinton | Calamus | 52729 |
| Clinton | Camanche | 52730 |
| Clinton | Charlotte | 52731 |
| Clinton | Clinton | 52732 |
| Clinton | Clinton | 52733 |
| Clinton | Clinton | 52736 |
| Louisa | Columbus City | 52737 |
| Louisa | Columbus Junction | 52738 |
| Muscatine | Conesville | 52739 |
| Clinton | De Witt | 52742 |
| Scott | Dixon | 52745 |
| Scott | Donahue | 52746 |
| Cedar | Durant | 52747 |
| Scott | Eldridge | 52748 |
| Muscatine | Fruitland | 52749 |
| Clinton | Goose Lake | 52750 |
| Clinton | Grand Mound | 52751 |
| Louisa | Grandview | 52752 |
| Scott | Le Claire | 52753 |
| Louisa | Letts | 52754 |
| Johnson | Lone Tree | 52755 |
| Scott | Long Grove | 52756 |
| Clinton | Low Moor | 52757 |
| Scott | Mc Causland | 52758 |
| Muscatine | Montpelier | 52759 |
| Muscatine | Moscow | 52760 |
| Muscatine | Muscatine | 52761 |
| Scott | New Liberty | 52765 |
| Muscatine | Nichols | 52766 |
| Scott | Pleasant Valley | 52767 |
| Scott | Princeton | 52768 |
| Muscatine | Stockton | 52769 |
| Clinton | Teeds Grove | 52771 |
| Cedar | Tipton | 52772 |
| Scott | Walcott | 52773 |
| Clinton | Welton | 52774 |
| Muscatine | West Liberty | 52776 |
| Clinton | Wheatland | 52777 |
| Muscatine | Wilton | 52778 |
| Scott | Davenport | 52801 |
| Scott | Davenport | 52802 |
| Scott | Davenport | 52803 |
| Scott | Davenport | 52804 |
| Scott | Davenport | 52805 |
| Scott | Davenport | 52806 |
| Scott | Davenport | 52807 |
| Scott | Davenport | 52808 |
| Scott | Davenport | 52809 |
