970 ZIP codes
| Zip Code | City | County | Population ↓ |
|---|---|---|---|
| 50023 | Ankeny | Polk County | 45,195 |
| 50613 | Cedar Falls | Black Hawk County | 43,732 |
| 52001 | Dubuque | Dubuque County | 42,895 |
| 52302 | Marion | Linn County | 42,803 |
| 52402 | Cedar Rapids | Linn County | 42,648 |
| 52404 | Cedar Rapids | Linn County | 41,433 |
| 52722 | Bettendorf | Scott County | 40,639 |
| 51503 | Council Bluffs | Pottawattamie County | 37,081 |
| 52240 | Iowa City | Johnson County | 36,475 |
| 50315 | Des Moines | Polk County | 36,355 |
| 50266 | West Des Moines | Dallas County | 35,508 |
| 50317 | Des Moines | Polk County | 35,466 |
| 51501 | Council Bluffs | Pottawattamie County | 35,400 |
| 50010 | Ames | Story County | 33,397 |
| 50265 | West Des Moines | Polk County | 33,222 |
| 50310 | Des Moines | Polk County | 31,976 |
| 50322 | Urbandale | Polk County | 31,917 |
| 50014 | Ames | Story County | 31,376 |
| 50158 | Marshalltown | Marshall County | 31,047 |
| 52501 | Ottumwa | Wapello County | 30,535 |
| 52761 | Muscatine | Muscatine County | 30,357 |
| 50701 | Waterloo | Black Hawk County | 30,128 |
| 50401 | Mason City | Cerro Gordo County | 28,909 |
| 50501 | Fort Dodge | Webster County | 28,530 |
| 52806 | Davenport | Scott County | 27,733 |
| 51106 | Sioux City | Woodbury County | 27,652 |
| 52601 | Burlington | Des Moines County | 27,592 |
| 50021 | Ankeny | Polk County | 27,375 |
| 52804 | Davenport | Scott County | 26,812 |
| 52405 | Cedar Rapids | Linn County | 26,259 |
| 52732 | Clinton | Clinton County | 25,984 |
| 50263 | Waukee | Dallas County | 25,635 |
| 52403 | Cedar Rapids | Linn County | 24,191 |
| 50131 | Johnston | Polk County | 23,967 |
| 50320 | Des Moines | Polk County | 23,709 |
| 51104 | Sioux City | Woodbury County | 22,759 |
| 52241 | Coralville | Johnson County | 22,494 |
| 52246 | Iowa City | Johnson County | 22,340 |
| 52317 | North Liberty | Johnson County | 22,119 |
| 52245 | Iowa City | Johnson County | 22,088 |
| 52803 | Davenport | Scott County | 21,558 |
| 50009 | Altoona | Polk County | 21,402 |
| 50702 | Waterloo | Black Hawk County | 20,818 |
| 50125 | Indianola | Warren County | 20,364 |
| 50208 | Newton | Jasper County | 20,339 |
| 50703 | Waterloo | Black Hawk County | 18,587 |
| 50325 | Clive | Polk County | 18,576 |
| 50313 | Des Moines | Polk County | 18,291 |
| 52002 | Dubuque | Dubuque County | 17,871 |
| 51103 | Sioux City | Woodbury County | 17,005 |
| 52807 | Davenport | Scott County | 16,806 |
| 50316 | Des Moines | Polk County | 16,647 |
| 50323 | Urbandale | Dallas County | 16,511 |
| 50036 | Boone | Boone County | 16,418 |
| 50311 | Des Moines | Polk County | 15,869 |
| 50111 | Grimes | Polk County | 15,745 |
| 50312 | Des Moines | Polk County | 15,498 |
| 50211 | Norwalk | Warren County | 15,120 |
| 52577 | Oskaloosa | Mahaska County | 14,437 |
| 50219 | Pella | Marion County | 13,940 |
| 52003 | Dubuque | Dubuque County | 13,820 |
| 50588 | Storm Lake | Buena Vista County | 13,263 |
| 52101 | Decorah | Winneshiek County | 12,962 |
| 52641 | Mount Pleasant | Henry County | 12,812 |
| 50677 | Waverly | Bremer County | 12,746 |
| 52627 | Fort Madison | Lee County | 12,719 |
| 50327 | Pleasant Hill | Polk County | 12,672 |
| 51031 | Le Mars | Plymouth County | 12,595 |
| 51301 | Spencer | Clay County | 12,326 |
| 51401 | Carroll | Carroll County | 12,174 |
| 52632 | Keokuk | Lee County | 12,087 |
| 50138 | Knoxville | Marion County | 12,086 |
| 50112 | Grinnell | Poweshiek County | 11,827 |
| 52556 | Fairfield | Jefferson County | 11,647 |
| 51105 | Sioux City | Woodbury County | 11,214 |
| 50314 | Des Moines | Polk County | 10,086 |
| 52748 | Eldridge | Scott County | 9,737 |
| 51250 | Sioux Center | Sioux County | 9,667 |
| 51442 | Denison | Crawford County | 9,648 |
| 52802 | Davenport | Scott County | 9,557 |
| 50616 | Charles City | Floyd County | 9,544 |
| 50035 | Bondurant | Polk County | 9,507 |
| 51534 | Glenwood | Mills County | 9,435 |
| 50309 | Des Moines | Polk County | 9,307 |
| 50003 | Adel | Dallas County | 9,263 |
| 50428 | Clear Lake | Cerro Gordo County | 9,119 |
| 50220 | Perry | Dallas County | 9,037 |
| 50801 | Creston | Union County | 8,957 |
| 52353 | Washington | Washington County | 8,930 |
| 50273 | Winterset | Madison County | 8,866 |
| 50595 | Webster City | Hamilton County | 8,823 |
| 50644 | Independence | Buchanan County | 8,705 |
| 50022 | Atlantic | Cass County | 8,664 |
| 52205 | Anamosa | Jones County | 8,537 |
| 51360 | Spirit Lake | Dickinson County | 8,533 |
| 50201 | Nevada | Story County | 8,291 |
| 52411 | Cedar Rapids | Linn County | 8,242 |
| 52057 | Manchester | Delaware County | 8,082 |
| 52060 | Maquoketa | Jackson County | 7,974 |
| 50321 | Des Moines | Polk County | 7,941 |
| 52544 | Centerville | Appanoose County | 7,873 |
| 52349 | Vinton | Benton County | 7,665 |
| 52742 | De Witt | Clinton County | 7,581 |
| 50213 | Osceola | Clarke County | 7,448 |
| 50707 | Evansdale | Black Hawk County | 7,307 |
| 52333 | Solon | Johnson County | 7,237 |
| 50226 | Polk City | Polk County | 7,144 |
| 50511 | Algona | Kossuth County | 7,041 |
| 52233 | Hiawatha | Linn County | 7,025 |
| 51041 | Orange City | Sioux County | 7,016 |
| 51334 | Estherville | Emmet County | 6,992 |
| 51537 | Harlan | Shelby County | 6,852 |
| 52537 | Bloomfield | Davis County | 6,766 |
| 51566 | Red Oak | Montgomery County | 6,764 |
| 51632 | Clarinda | Page County | 6,753 |
| 50047 | Carlisle | Warren County | 6,635 |
| 51012 | Cherokee | Cherokee County | 6,518 |
| 50662 | Oelwein | Fayette County | 6,499 |
| 50049 | Chariton | Lucas County | 6,449 |
| 50126 | Iowa Falls | Hardin County | 6,402 |
| 52310 | Monticello | Jones County | 6,286 |
| 51201 | Sheldon | Sioux County | 6,278 |
| 52753 | Le Claire | Scott County | 6,108 |
| 52314 | Mount Vernon | Linn County | 6,011 |
| 50659 | New Hampton | Chickasaw County | 5,986 |
| 52172 | Waukon | Allamakee County | 5,982 |
| 52136 | Cresco | Howard County | 5,917 |
| 50436 | Forest City | Winnebago County | 5,879 |
| 52531 | Albia | Monroe County | 5,856 |
| 52040 | Dyersville | Delaware County | 5,644 |
| 50548 | Humboldt | Humboldt County | 5,591 |
| 51601 | Shenandoah | Page County | 5,560 |
| 51108 | Sioux City | Plymouth County | 5,555 |
| 52031 | Bellevue | Jackson County | 5,442 |
| 51054 | Sergeant Bluff | Woodbury County | 5,416 |
| 50441 | Hampton | Franklin County | 5,321 |
| 52772 | Tipton | Cedar County | 5,289 |
| 52247 | Kalona | Johnson County | 5,222 |
| 50129 | Jefferson | Greene County | 5,208 |
| 50324 | Windsor Heights | Polk County | 5,200 |
| 52340 | Tiffin | Johnson County | 5,192 |
| 52726 | Blue Grass | Scott County | 5,113 |
| 50461 | Osage | Mitchell County | 5,068 |
| 52730 | Camanche | Clinton County | 5,042 |
| 52776 | West Liberty | Muscatine County | 4,979 |
| 51247 | Rock Valley | Sioux County | 4,887 |
| 51555 | Missouri Valley | Harrison County | 4,858 |
| 51351 | Milford | Dickinson County | 4,812 |
| 52361 | Williamsburg | Iowa County | 4,784 |
| 50156 | Madrid | Boone County | 4,644 |
| 50124 | Huxley | Story County | 4,539 |
| 52068 | Peosta | Dubuque County | 4,483 |
| 50013 | Ames | Story County | 4,349 |
| 50536 | Emmetsburg | Palo Alto County | 4,304 |
| 52655 | West Burlington | Des Moines County | 4,174 |
| 52242 | Iowa City | Johnson County | 4,140 |
| 52339 | Tama | Tama County | 4,120 |
| 52301 | Marengo | Iowa County | 4,099 |
| 52358 | West Branch | Cedar County | 4,096 |
| 50248 | Story City | Story County | 4,048 |
| 50648 | Jesup | Black Hawk County | 4,044 |
| 51246 | Rock Rapids | Lyon County | 4,007 |
| 50438 | Garner | Hancock County | 3,989 |
| 50533 | Eagle Grove | Wright County | 3,931 |
| 52338 | Swisher | Johnson County | 3,886 |
| 52213 | Center Point | Linn County | 3,869 |
| 52645 | New London | Henry County | 3,801 |
| 51510 | Carter Lake | Pottawattamie County | 3,780 |
| 52327 | Riverside | Washington County | 3,691 |
| 52778 | Wilton | Cedar County | 3,661 |
| 52228 | Fairfax | Linn County | 3,656 |
| 51109 | Sioux City | Plymouth County | 3,619 |
| 50651 | La Porte City | Black Hawk County | 3,608 |
| 52162 | Postville | Allamakee County | 3,548 |
| 50674 | Sumner | Bremer County | 3,539 |
| 52175 | West Union | Fayette County | 3,528 |
| 51023 | Hawarden | Sioux County | 3,469 |
| 51040 | Onawa | Monona County | 3,422 |
| 52033 | Cascade | Jones County | 3,417 |
| 50109 | Granger | Polk County | 3,407 |
| 50525 | Clarion | Wright County | 3,404 |
| 52738 | Columbus Junction | Louisa County | 3,389 |
| 51249 | Sibley | Osceola County | 3,388 |
| 50638 | Grundy Center | Grundy County | 3,330 |
| 50627 | Eldora | Hardin County | 3,263 |
| 50225 | Pleasantville | Marion County | 3,211 |
| 50622 | Denver | Bremer County | 3,179 |
| 50579 | Rockwell City | Calhoun County | 3,153 |
| 51239 | Hull | Sioux County | 3,115 |
| 52653 | Wapello | Louisa County | 3,109 |
| 50054 | Colfax | Jasper County | 3,099 |
| 50237 | Runnells | Polk County | 3,085 |
| 51546 | Logan | Harrison County | 3,067 |
| 50643 | Hudson | Black Hawk County | 3,063 |
| 50212 | Ogden | Boone County | 3,053 |
| 50459 | Northwood | Worth County | 3,046 |
| 51050 | Remsen | Plymouth County | 3,043 |
| 50169 | Mitchellville | Polk County | 3,037 |
| 52637 | Mediapolis | Des Moines County | 2,994 |
| 52208 | Belle Plaine | Benton County | 2,992 |
| 50140 | Lamoni | Decatur County | 2,973 |
| 52328 | Robins | Linn County | 2,962 |
| 52045 | Epworth | Dubuque County | 2,950 |
| 50025 | Audubon | Audubon County | 2,937 |
| 50421 | Belmond | Wright County | 2,923 |
| 50072 | Earlham | Madison County | 2,892 |
| 52052 | Guttenberg | Clayton County | 2,890 |
| 52342 | Toledo | Tama County | 2,875 |
| 50170 | Monroe | Jasper County | 2,874 |
| 50261 | Van Meter | Madison County | 2,866 |
| 50216 | Panora | Guthrie County | 2,844 |
| 50450 | Lake Mills | Winnebago County | 2,839 |
| 52227 | Ely | Linn County | 2,825 |
| 51002 | Alta | Buena Vista County | 2,819 |
| 52214 | Central City | Linn County | 2,790 |
| 50115 | Guthrie Center | Guthrie County | 2,782 |
| 52253 | Lisbon | Cedar County | 2,764 |
| 50228 | Prairie City | Jasper County | 2,688 |
| 50665 | Parkersburg | Butler County | 2,677 |
| 52591 | Sigourney | Keokuk County | 2,674 |
| 52206 | Atkins | Benton County | 2,668 |
| 52046 | Farley | Dubuque County | 2,663 |
| 51039 | Moville | Woodbury County | 2,648 |
| 52211 | Brooklyn | Poweshiek County | 2,638 |
| 52773 | Walcott | Scott County | 2,638 |
| 50144 | Leon | Decatur County | 2,579 |
| 52356 | Wellman | Washington County | 2,577 |
| 50063 | Dallas Center | Dallas County | 2,553 |
| 51445 | Ida Grove | Ida County | 2,526 |
| 50472 | Saint Ansgar | Mitchell County | 2,506 |
| 50423 | Britt | Hancock County | 2,490 |
| 50250 | Stuart | Adair County | 2,480 |
| 50563 | Manson | Calhoun County | 2,468 |
| 50601 | Ackley | Franklin County | 2,468 |
| 50060 | Corydon | Wayne County | 2,444 |
| 52336 | Springville | Linn County | 2,442 |
| 50171 | Montezuma | Poweshiek County | 2,440 |
| 50658 | Nashua | Chickasaw County | 2,427 |
| 50854 | Mount Ayr | Ringgold County | 2,414 |
| 52159 | Monona | Allamakee County | 2,412 |
| 50247 | State Center | Marshall County | 2,411 |
| 50849 | Greenfield | Adair County | 2,395 |
| 50583 | Sac City | Sac County | 2,387 |
| 50841 | Corning | Adams County | 2,379 |
| 50670 | Shell Rock | Butler County | 2,378 |
| 50629 | Fairbank | Buchanan County | 2,374 |
| 51001 | Akron | Plymouth County | 2,370 |
| 50669 | Reinbeck | Grundy County | 2,358 |
| 50240 | Saint Charles | Madison County | 2,335 |
| 50675 | Traer | Tama County | 2,316 |
| 50207 | New Sharon | Mahaska County | 2,313 |
| 50061 | Cumming | Madison County | 2,310 |
| 52203 | Amana | Iowa County | 2,300 |
| 50458 | Nora Springs | Floyd County | 2,297 |
| 52656 | West Point | Lee County | 2,295 |
| 50276 | Woodward | Boone County | 2,248 |
| 51455 | Manning | Carroll County | 2,241 |
| 50851 | Lenox | Taylor County | 2,238 |
| 51241 | Larchwood | Lyon County | 2,237 |
| 52755 | Lone Tree | Johnson County | 2,227 |
| 52625 | Donnellson | Lee County | 2,204 |
| 51346 | Hartley | O'Brien County | 2,201 |
| 52401 | Cedar Rapids | Linn County | 2,172 |
| 50574 | Pocahontas | Pocahontas County | 2,160 |
| 52076 | Strawberry Point | Clayton County | 2,150 |
| 50833 | Bedford | Taylor County | 2,139 |
| 52324 | Palo | Linn County | 2,139 |
| 51024 | Hinton | Plymouth County | 2,125 |
| 51579 | Woodbine | Harrison County | 2,116 |
| 50619 | Clarksville | Butler County | 2,099 |
| 50676 | Tripoli | Bremer County | 2,095 |
| 50012 | Ames | Story County | 2,061 |
| 52747 | Durant | Muscatine County | 2,055 |
| 50466 | Riceville | Howard County | 2,042 |
| 50636 | Greene | Butler County | 2,038 |
| 51560 | Oakland | Pottawattamie County | 2,035 |
| 50647 | Janesville | Bremer County | 2,032 |
| 51028 | Kingsley | Plymouth County | 2,027 |
| 51449 | Lake City | Calhoun County | 2,020 |
| 50161 | Maxwell | Polk County | 2,016 |
| 50166 | Milo | Warren County | 2,016 |
| 52224 | Dysart | Benton County | 2,016 |
| 51559 | Neola | Pottawattamie County | 2,000 |
| 51529 | Dunlap | Harrison County | 1,992 |
| 50830 | Afton | Union County | 1,969 |
| 52623 | Danville | Des Moines County | 1,963 |
| 51576 | Underwood | Pottawattamie County | 1,960 |
| 51025 | Holstein | Ida County | 1,958 |
| 52565 | Keosauqua | Van Buren County | 1,920 |
| 52322 | Oxford | Johnson County | 1,913 |
| 52041 | Earlville | Delaware County | 1,901 |
| 50244 | Slater | Polk County | 1,900 |
| 50058 | Coon Rapids | Guthrie County | 1,869 |
| 52151 | Lansing | Allamakee County | 1,869 |
| 52043 | Elkader | Clayton County | 1,860 |
| 51521 | Avoca | Pottawattamie County | 1,857 |
| 52553 | Eddyville | Wapello County | 1,856 |
| 52132 | Calmar | Winneshiek County | 1,845 |
| 52332 | Shellsburg | Benton County | 1,819 |
| 52142 | Fayette | Fayette County | 1,790 |
| 50456 | Manly | Worth County | 1,783 |
| 50028 | Baxter | Jasper County | 1,776 |
| 52352 | Walker | Linn County | 1,775 |
| 52563 | Hedrick | Keokuk County | 1,770 |
| 50236 | Roland | Story County | 1,768 |
| 51038 | Merrill | Plymouth County | 1,763 |
| 51003 | Alton | Sioux County | 1,761 |
| 50864 | Villisca | Montgomery County | 1,745 |
| 51535 | Griswold | Cass County | 1,730 |
| 51248 | Sanborn | O'Brien County | 1,712 |
| 52218 | Coggon | Linn County | 1,709 |
| 51237 | George | Lyon County | 1,700 |
| 50624 | Dike | Grundy County | 1,694 |
| 50554 | Laurens | Pocahontas County | 1,674 |
| 51575 | Treynor | Pottawattamie County | 1,663 |
| 52042 | Edgewood | Clayton County | 1,663 |
| 50135 | Kellogg | Jasper County | 1,658 |
| 52248 | Keota | Washington County | 1,655 |
| 51034 | Mapleton | Monona County | 1,653 |
| 50046 | Cambridge | Story County | 1,652 |
| 50682 | Winthrop | Buchanan County | 1,649 |
| 50469 | Rockwell | Cerro Gordo County | 1,647 |
| 50621 | Conrad | Grundy County | 1,641 |
| 51240 | Inwood | Lyon County | 1,629 |
| 52237 | Hopkinton | Delaware County | 1,623 |
| 51347 | Lake Park | Dickinson County | 1,621 |
| 51551 | Malvern | Mills County | 1,619 |
| 50604 | Aplington | Butler County | 1,618 |
| 52801 | Davenport | Scott County | 1,598 |
| 50006 | Alden | Hardin County | 1,586 |
| 51030 | Lawton | Woodbury County | 1,586 |
| 50568 | Newell | Buena Vista County | 1,583 |
| 52345 | Urbana | Benton County | 1,578 |
| 51035 | Marcus | Cherokee County | 1,577 |
| 50210 | New Virginia | Warren County | 1,570 |
| 50630 | Fredericksburg | Chickasaw County | 1,568 |
| 50130 | Jewell | Hamilton County | 1,567 |
| 50475 | Sheffield | Franklin County | 1,563 |
| 50626 | Dunkerton | Black Hawk County | 1,560 |
| 51526 | Crescent | Pottawattamie County | 1,560 |
| 52639 | Montrose | Lee County | 1,560 |
| 50468 | Rockford | Floyd County | 1,553 |
| 50424 | Buffalo Center | Winnebago County | 1,532 |
| 52069 | Preston | Jackson County | 1,532 |
| 52654 | Wayland | Henry County | 1,522 |
| 50122 | Hubbard | Hardin County | 1,511 |
| 52201 | Ainsworth | Washington County | 1,508 |
| 50002 | Adair | Guthrie County | 1,505 |
| 52756 | Long Grove | Scott County | 1,505 |
| 51640 | Hamburg | Fremont County | 1,503 |
| 51653 | Tabor | Fremont County | 1,501 |
| 52754 | Letts | Muscatine County | 1,501 |
| 52073 | Sherrill | Dubuque County | 1,496 |
| 51652 | Sidney | Fremont County | 1,494 |
| 51005 | Aurelia | Cherokee County | 1,486 |
| 50233 | Redfield | Dallas County | 1,480 |
| 50251 | Sully | Jasper County | 1,478 |
| 52216 | Clarence | Cedar County | 1,467 |
| 50076 | Exira | Audubon County | 1,463 |
| 52157 | McGregor | Clayton County | 1,457 |
| 51450 | Lake View | Sac County | 1,448 |
| 50641 | Hazleton | Buchanan County | 1,446 |
| 52351 | Walford | Benton County | 1,434 |
| 51046 | Paullina | O'Brien County | 1,432 |
| 50174 | Murray | Clarke County | 1,431 |
| 52571 | Moravia | Appanoose County | 1,430 |
| 51027 | Ireton | Sioux County | 1,421 |
| 51454 | Manilla | Crawford County | 1,409 |
| 52032 | Bernard | Dubuque County | 1,407 |
| 50249 | Stratford | Hamilton County | 1,404 |
| 51238 | Hospers | Sioux County | 1,401 |
| 52161 | Ossian | Winneshiek County | 1,396 |
| 50229 | Prole | Warren County | 1,392 |
| 50645 | Ionia | Chickasaw County | 1,391 |
| 50602 | Allison | Butler County | 1,382 |
| 51443 | Glidden | Carroll County | 1,377 |
| 52347 | Victor | Iowa County | 1,367 |
| 52640 | Morning Sun | Louisa County | 1,366 |
| 51638 | Essex | Page County | 1,350 |
| 50635 | Gladbrook | Tama County | 1,344 |
| 52659 | Winfield | Henry County | 1,336 |
| 51577 | Walnut | Pottawattamie County | 1,326 |
| 52053 | Holy Cross | Dubuque County | 1,317 |
| 51342 | Graettinger | Palo Alto County | 1,315 |
| 50597 | West Bend | Palo Alto County | 1,312 |
| 52155 | Lime Springs | Howard County | 1,309 |
| 52590 | Seymour | Wayne County | 1,305 |
| 50162 | Melbourne | Marshall County | 1,302 |
| 52306 | Mechanicsville | Cedar County | 1,300 |
| 52316 | North English | Iowa County | 1,298 |
| 52315 | Newhall | Benton County | 1,297 |
| 50632 | Garwin | Tama County | 1,296 |
| 52320 | Olin | Jones County | 1,290 |
| 52768 | Princeton | Scott County | 1,288 |
| 51466 | Wall Lake | Sac County | 1,286 |
| 50020 | Anita | Cass County | 1,281 |
| 51430 | Arcadia | Carroll County | 1,273 |
| 51055 | Sloan | Woodbury County | 1,271 |
| 52202 | Alburnett | Linn County | 1,267 |
| 50447 | Kanawha | Hancock County | 1,261 |
| 52777 | Wheatland | Clinton County | 1,261 |
| 50055 | Collins | Story County | 1,260 |
| 51358 | Ruthven | Palo Alto County | 1,259 |
| 52035 | Colesburg | Clayton County | 1,255 |
| 50070 | Dexter | Madison County | 1,250 |
| 50543 | Gowrie | Webster County | 1,243 |
| 52746 | Donahue | Scott County | 1,236 |
| 50105 | Gilbert | Story County | 1,235 |
| 50660 | New Hartford | Butler County | 1,234 |
| 50530 | Dayton | Webster County | 1,230 |
| 52540 | Brighton | Jefferson County | 1,230 |
| 50540 | Fonda | Pocahontas County | 1,217 |
| 52070 | Sabula | Jackson County | 1,209 |
| 50585 | Sioux Rapids | Buena Vista County | 1,207 |
| 51006 | Battle Creek | Ida County | 1,201 |
| 52626 | Farmington | Lee County | 1,198 |
| 50056 | Colo | Story County | 1,190 |
| 52141 | Elgin | Fayette County | 1,190 |
| 51461 | Schleswig | Crawford County | 1,187 |
| 50628 | Elma | Howard County | 1,183 |
| 50106 | Gilman | Marshall County | 1,182 |
| 51234 | Boyden | Sioux County | 1,179 |
| 50238 | Russell | Lucas County | 1,168 |
| 51458 | Odebolt | Sac County | 1,167 |
| 52255 | Lowden | Cedar County | 1,166 |
| 52223 | Delhi | Delaware County | 1,162 |
| 50668 | Readlyn | Bremer County | 1,159 |
| 52341 | Toddville | Linn County | 1,154 |
| 50846 | Fontanelle | Adair County | 1,149 |
| 51063 | Whiting | Monona County | 1,144 |
| 52049 | Garnavillo | Clayton County | 1,132 |
| 50257 | Truro | Madison County | 1,131 |
| 51053 | Schaller | Sac County | 1,129 |
| 52749 | Fruitland | Muscatine County | 1,127 |
| 50680 | Wellsburg | Grundy County | 1,124 |
| 52346 | Van Horne | Benton County | 1,119 |
| 51016 | Correctionville | Woodbury County | 1,118 |
| 50268 | What Cheer | Keokuk County | 1,101 |
| 51553 | Minden | Pottawattamie County | 1,100 |
| 51573 | Stanton | Montgomery County | 1,099 |
| 51245 | Primghar | O'Brien County | 1,096 |
| 52165 | Ridgeway | Winneshiek County | 1,094 |
| 51354 | Ocheyedan | Osceola County | 1,090 |
| 50514 | Armstrong | Emmet County | 1,089 |
| 52323 | Oxford Junction | Jones County | 1,087 |
| 51101 | Sioux City | Woodbury County | 1,070 |
| 52533 | Batavia | Jefferson County | 1,058 |
| 51026 | Hornick | Woodbury County | 1,057 |
| 52554 | Eldon | Wapello County | 1,057 |
| 52561 | Fremont | Mahaska County | 1,054 |
| 52171 | Waucoma | Fayette County | 1,053 |
| 52572 | Moulton | Appanoose County | 1,051 |
| 52209 | Blairstown | Benton County | 1,049 |
| 52318 | Norway | Benton County | 1,045 |
| 52144 | Fort Atkinson | Winneshiek County | 1,031 |
| 51331 | Arnolds Park | Dickinson County | 1,017 |
| 51235 | Doon | Lyon County | 1,012 |
| 52552 | Drakesville | Davis County | 1,012 |
| 52570 | Milton | Van Buren County | 1,012 |
| 50069 | De Soto | Dallas County | 1,009 |
| 50625 | Dumont | Butler County | 1,005 |
| 50139 | Lacona | Warren County | 1,003 |
| 51525 | Carson | Pottawattamie County | 1,003 |
| 51052 | Salix | Woodbury County | 1,001 |
| 50510 | Albert City | Buena Vista County | 994 |
| 52160 | New Albin | Allamakee County | 994 |
| 51022 | Granville | O'Brien County | 993 |
| 50535 | Early | Sac County | 990 |
| 52215 | Chelsea | Tama County | 986 |
| 52751 | Grand Mound | Clinton County | 985 |
| 51058 | Sutherland | O'Brien County | 982 |
| 51436 | Breda | Carroll County | 980 |
| 50541 | Gilmore City | Pocahontas County | 979 |
| 52147 | Hawkeye | Fayette County | 978 |
| 51570 | Shelby | Shelby County | 974 |
| 50452 | Latimer | Franklin County | 971 |
| 50529 | Dakota City | Humboldt County | 966 |
| 52249 | Keystone | Benton County | 960 |
| 50073 | Elkhart | Polk County | 959 |
| 51542 | Honey Creek | Pottawattamie County | 950 |
| 50542 | Goldfield | Wright County | 949 |
| 51462 | Scranton | Greene County | 949 |
| 52210 | Brandon | Buchanan County | 946 |
| 52635 | Lockridge | Jefferson County | 946 |
| 52037 | Delmar | Clinton County | 943 |
| 52330 | Ryan | Delaware County | 943 |
| 51338 | Everly | Clay County | 933 |
| 52658 | Wever | Lee County | 929 |
| 50522 | Burt | Kossuth County | 922 |
| 50230 | Radcliffe | Hardin County | 916 |
| 50134 | Kelley | Story County | 915 |
| 52729 | Calamus | Clinton County | 914 |
| 50517 | Bancroft | Kossuth County | 909 |
| 52039 | Durango | Dubuque County | 908 |
| 52254 | Lost Nation | Clinton County | 906 |
| 50480 | Titonka | Kossuth County | 905 |
| 52621 | Crawfordsville | Washington County | 899 |
| 50071 | Dows | Wright County | 889 |
| 52235 | Hills | Johnson County | 889 |
| 50598 | Whittemore | Kossuth County | 888 |
| 52728 | Buffalo | Scott County | 888 |
| 50044 | Bussey | Marion County | 887 |
| 52530 | Agency | Wapello County | 887 |
| 50449 | Klemme | Hancock County | 886 |
| 50150 | Lovilia | Monroe County | 885 |
| 52720 | Atalissa | Muscatine County | 884 |
| 52362 | Wyoming | Jones County | 882 |
| 50606 | Arlington | Fayette County | 880 |
| 52620 | Bonaparte | Van Buren County | 878 |
| 50532 | Duncombe | Webster County | 877 |
| 51355 | Okoboji | Dickinson County | 877 |
| 50590 | Swea City | Kossuth County | 870 |
| 52305 | Martelle | Jones County | 869 |
| 52146 | Harpers Ferry | Allamakee County | 866 |
| 51004 | Anthon | Woodbury County | 863 |
| 50005 | Albion | Marshall County | 859 |
| 50062 | Melcher Dallas | Marion County | 859 |
| 52535 | Birmingham | Van Buren County | 859 |
| 50123 | Humeston | Wayne County | 858 |
| 50153 | Lynnville | Jasper County | 852 |
| 50278 | Zearing | Story County | 851 |
| 52229 | Garrison | Benton County | 849 |
| 52584 | Pulaski | Davis County | 846 |
| 52721 | Bennett | Cedar County | 846 |
| 50149 | Lorimor | Madison County | 843 |
| 51533 | Emerson | Montgomery County | 843 |
| 52739 | Conesville | Louisa County | 843 |
| 50167 | Minburn | Dallas County | 837 |
| 51557 | Mondamin | Harrison County | 834 |
| 50168 | Mingo | Jasper County | 831 |
| 50258 | Union | Hardin County | 831 |
| 52065 | New Vienna | Dubuque County | 824 |
| 50859 | Prescott | Adams County | 823 |
| 51561 | Pacific Junction | Mills County | 823 |
| 50845 | Diagonal | Ringgold County | 814 |
| 50667 | Raymond | Black Hawk County | 810 |
| 52337 | Stanwood | Cedar County | 803 |
| 52047 | Farmersburg | Clayton County | 801 |
| 52078 | Worthington | Dubuque County | 801 |
| 50858 | Orient | Adair County | 796 |
| 52585 | Richland | Keokuk County | 795 |
| 52072 | Saint Olaf | Clayton County | 792 |
| 52064 | Miles | Jackson County | 791 |
| 50142 | Le Grand | Marshall County | 790 |
| 50478 | Thompson | Winnebago County | 788 |
| 51531 | Elk Horn | Shelby County | 784 |
| 50118 | Hartford | Warren County | 782 |
| 51646 | New Market | Taylor County | 780 |
| 52731 | Charlotte | Clinton County | 777 |
| 50048 | Casey | Guthrie County | 776 |
| 51232 | Ashton | Osceola County | 774 |
| 50008 | Allerton | Wayne County | 771 |
| 51439 | Charter Oak | Crawford County | 771 |
| 50634 | Gilbertville | Black Hawk County | 770 |
| 50483 | Wesley | Kossuth County | 765 |
| 50581 | Rolfe | Pocahontas County | 764 |
| 50557 | Lehigh | Webster County | 763 |
| 52766 | Nichols | Muscatine County | 763 |
| 50655 | Maynard | Fayette County | 760 |
| 52649 | Salem | Henry County | 760 |
| 52329 | Rowley | Buchanan County | 757 |
| 50107 | Grand Junction | Greene County | 756 |
| 51571 | Silver City | Mills County | 750 |
| 50075 | Ellsworth | Hamilton County | 749 |
| 52054 | La Motte | Jackson County | 749 |
| 52650 | Sperry | Des Moines County | 748 |
| 51357 | Royal | Clay County | 744 |
| 50050 | Churdan | Greene County | 743 |
| 50558 | Livermore | Humboldt County | 742 |
| 51544 | Lewis | Cass County | 741 |
| 51563 | Persia | Harrison County | 737 |
| 51639 | Farragut | Fremont County | 737 |
| 50479 | Thornton | Cerro Gordo County | 736 |
| 52222 | Deep River | Poweshiek County | 731 |
| 50214 | Otley | Marion County | 730 |
| 52326 | Quasqueton | Buchanan County | 727 |
| 52580 | Packwood | Jefferson County | 726 |
| 51558 | Moorhead | Monona County | 724 |
| 51465 | Vail | Crawford County | 723 |
| 50666 | Plainfield | Bremer County | 720 |
| 50173 | Montour | Tama County | 716 |
| 50246 | Stanhope | Hamilton County | 716 |
| 50460 | Orchard | Mitchell County | 713 |
| 50560 | Lu Verne | Kossuth County | 709 |
| 50516 | Badger | Webster County | 708 |
| 51364 | Terril | Dickinson County | 708 |
| 50157 | Malcom | Poweshiek County | 705 |
| 50032 | Berwick | Polk County | 702 |
| 50476 | Stacyville | Mitchell County | 702 |
| 52536 | Blakesburg | Wapello County | 701 |
| 50650 | Lamont | Buchanan County | 693 |
| 50853 | Massena | Cass County | 693 |
| 50482 | Ventura | Cerro Gordo County | 692 |
| 51047 | Peterson | Clay County | 690 |
| 50435 | Floyd | Floyd County | 687 |
| 50578 | Ringsted | Emmet County | 687 |
| 51532 | Elliott | Montgomery County | 685 |
| 52079 | Zwingle | Jackson County | 685 |
| 52156 | Luana | Clayton County | 681 |
| 50471 | Rudd | Floyd County | 680 |
| 50164 | Menlo | Guthrie County | 679 |
| 52760 | Moscow | Muscatine County | 679 |
| 50519 | Bode | Humboldt County | 678 |
| 51036 | Maurice | Sioux County | 676 |
| 50523 | Callender | Webster County | 667 |
| 52154 | Lawler | Chickasaw County | 664 |
| 50163 | Melcher Dallas | Marion County | 663 |
| 51243 | Little Rock | Lyon County | 663 |
| 52135 | Clermont | Fayette County | 651 |
| 50232 | Reasnor | Jasper County | 650 |
| 50569 | Otho | Webster County | 650 |
| 50575 | Pomeroy | Calhoun County | 649 |
| 52551 | Douds | Van Buren County | 648 |
| 51528 | Dow City | Crawford County | 642 |
| 52550 | Delta | Keokuk County | 640 |
| 50151 | Lucas | Lucas County | 636 |
| 50448 | Kensett | Worth County | 630 |
| 52569 | Melrose | Monroe County | 630 |
| 51530 | Earling | Shelby County | 629 |
| 52133 | Castalia | Winneshiek County | 627 |
| 50271 | Williams | Hamilton County | 623 |
| 52549 | Cincinnati | Appanoose County | 623 |
| 51231 | Archer | O'Brien County | 621 |
| 51448 | Kiron | Crawford County | 620 |
| 52586 | Rose Hill | Mahaska County | 619 |
| 50840 | Clearfield | Taylor County | 617 |
| 51018 | Cushing | Ida County | 613 |
| 50154 | McCallsburg | Story County | 612 |
| 50065 | Davis City | Decatur County | 608 |
| 51433 | Auburn | Sac County | 606 |
| 52335 | South English | Keokuk County | 604 |
| 50561 | Lytton | Calhoun County | 592 |
| 52217 | Clutier | Tama County | 590 |
| 52594 | Unionville | Appanoose County | 588 |
| 52557 | Fairfield | Jefferson County | 587 |
| 52624 | Denmark | Lee County | 581 |
| 50160 | Martensdale | Warren County | 579 |
| 51230 | Alvord | Lyon County | 578 |
| 50001 | Ackworth | Warren County | 575 |
| 51020 | Galva | Ida County | 574 |
| 52619 | Argyle | Lee County | 573 |
| 51007 | Bronson | Woodbury County | 569 |
| 51019 | Danbury | Woodbury County | 566 |
| 50538 | Farnhamville | Calhoun County | 562 |
| 51060 | Ute | Monona County | 557 |
| 52309 | Monmouth | Jackson County | 556 |
| 52574 | Mystic | Appanoose County | 553 |
| 52251 | Ladora | Iowa County | 551 |
| 50029 | Bayard | Guthrie County | 550 |
| 50039 | Bouton | Dallas County | 547 |
| 50143 | Leighton | Mahaska County | 546 |
| 52595 | University Park | Mahaska County | 539 |
| 50120 | Haverhill | Marshall County | 537 |
| 50544 | Harcourt | Webster County | 537 |
| 51453 | Lohrville | Calhoun County | 537 |
| 50453 | Leland | Winnebago County | 535 |
| 51014 | Cleghorn | Cherokee County | 534 |
| 51467 | Westside | Crawford County | 531 |
| 51565 | Portsmouth | Shelby County | 530 |
| 52038 | Dundee | Delaware County | 529 |
| 51048 | Pierson | Woodbury County | 525 |
| 50524 | Clare | Webster County | 523 |
| 50446 | Joice | Worth County | 522 |
| 52769 | Stockton | Scott County | 522 |
| 50256 | Tracy | Marion County | 519 |
| 52638 | Middletown | Des Moines County | 516 |
| 52750 | Goose Lake | Clinton County | 513 |
| 50464 | Plymouth | Cerro Gordo County | 512 |
| 52236 | Homestead | Iowa County | 512 |
| 51548 | McClelland | Pottawattamie County | 509 |
| 50653 | Marble Rock | Floyd County | 504 |
| 52170 | Waterville | Allamakee County | 504 |
| 51049 | Quimby | Cherokee County | 502 |
| 50206 | New Providence | Hardin County | 500 |
| 50217 | Paton | Greene County | 500 |
| 50141 | Laurel | Marshall County | 499 |
| 50642 | Holland | Grundy County | 498 |
| 50264 | Weldon | Clarke County | 493 |
| 51541 | Henderson | Mills County | 491 |
| 50007 | Alleman | Polk County | 489 |
| 50843 | Cumberland | Cass County | 487 |
| 51562 | Panama | Shelby County | 486 |
| 50277 | Yale | Guthrie County | 484 |
| 51463 | Templeton | Carroll County | 484 |
| 51446 | Irwin | Shelby County | 483 |
| 50234 | Rhodes | Marshall County | 482 |
| 51564 | Pisgah | Harrison County | 479 |
| 50242 | Searsboro | Poweshiek County | 478 |
| 52644 | Mount Union | Henry County | 473 |
| 50599 | Woolstock | Wright County | 470 |
| 50146 | Linden | Dallas County | 467 |
| 51056 | Smithland | Woodbury County | 464 |
| 51572 | Soldier | Monona County | 464 |
| 50457 | Meservey | Hancock County | 463 |
| 51431 | Arthur | Ida County | 463 |
| 52745 | Dixon | Scott County | 461 |
| 51033 | Linn Grove | Clay County | 460 |
| 52325 | Parnell | Iowa County | 460 |
| 50133 | Kellerton | Ringgold County | 459 |
| 52321 | Onslow | Jones County | 458 |
| 51441 | Deloit | Crawford County | 457 |
| 51636 | Coin | Page County | 456 |
| 50566 | Moorland | Webster County | 454 |
| 50539 | Fenton | Kossuth County | 453 |
| 52140 | Dorchester | Allamakee County | 453 |
| 52567 | Libertyville | Jefferson County | 449 |
| 50434 | Fertile | Worth County | 448 |
| 50681 | Westgate | Fayette County | 447 |
| 52583 | Promise City | Wayne County | 447 |
| 52212 | Center Junction | Jones County | 446 |
| 50275 | Woodburn | Clarke County | 444 |
| 51350 | Melvin | Osceola County | 443 |
| 52231 | Harper | Keokuk County | 439 |
| 50026 | Bagley | Guthrie County | 438 |
| 50108 | Grand River | Decatur County | 438 |
| 50034 | Blairsburg | Hamilton County | 437 |
| 52542 | Cantril | Van Buren County | 436 |
| 52050 | Greeley | Delaware County | 433 |
| 52651 | Stockport | Van Buren County | 430 |
| 50128 | Jamaica | Guthrie County | 429 |
| 52225 | Elberon | Tama County | 424 |
| 51365 | Wallingford | Emmet County | 423 |
| 52359 | West Chester | Washington County | 422 |
| 50672 | Steamboat Rock | Hardin County | 420 |
| 52534 | Beacon | Mahaska County | 420 |
| 52543 | Cedar | Mahaska County | 420 |
| 51345 | Harris | Osceola County | 418 |
| 51536 | Hancock | Pottawattamie County | 418 |
| 52169 | Wadena | Fayette County | 418 |
| 50607 | Aurora | Buchanan County | 417 |
| 51649 | Randolph | Fremont County | 417 |
| 50451 | Lakota | Kossuth County | 414 |
| 51010 | Castana | Monona County | 411 |
| 50136 | Keswick | Keokuk County | 408 |
| 52313 | Mount Auburn | Benton County | 405 |
| 50420 | Alexander | Franklin County | 403 |
| 52030 | Andrew | Jackson County | 403 |
| 52576 | Ollie | Keokuk County | 402 |
| 50103 | Garden Grove | Decatur County | 400 |
| 51527 | Defiance | Shelby County | 395 |
| 50562 | Mallard | Palo Alto County | 394 |
| 51333 | Dickens | Clay County | 394 |
| 51549 | Macedonia | Pottawattamie County | 394 |
| 52767 | Pleasant Valley | Scott County | 394 |
| 50235 | Rippey | Greene County | 391 |
| 51543 | Kimballton | Audubon County | 390 |
| 50132 | Kamrar | Hamilton County | 389 |
| 50577 | Renwick | Humboldt County | 383 |
| 50243 | Sheldahl | Polk County | 382 |
| 50565 | Marathon | Buena Vista County | 381 |
| 50609 | Beaman | Grundy County | 381 |
| 50148 | Liscomb | Marshall County | 376 |
| 52727 | Bryant | Clinton County | 375 |
| 50222 | Peru | Madison County | 373 |
| 51523 | Blencoe | Monona County | 370 |
| 50612 | Buckingham | Tama County | 365 |
| 50223 | Pilot Mound | Boone County | 364 |
| 50611 | Bristow | Butler County | 364 |
| 52752 | Grandview | Louisa County | 364 |
| 52765 | New Liberty | Scott County | 360 |
| 50455 | McIntire | Mitchell County | 359 |
| 51556 | Modale | Harrison County | 359 |
| 52221 | Guernsey | Poweshiek County | 359 |
| 50119 | Harvey | Marion County | 356 |
| 51062 | Westfield | Plymouth County | 356 |
| 50518 | Barnum | Webster County | 350 |
| 52168 | Spillville | Winneshiek County | 350 |
| 50528 | Cylinder | Palo Alto County | 344 |
| 50633 | Geneva | Franklin County | 344 |
| 51242 | Lester | Lyon County | 343 |
| 50603 | Alta Vista | Chickasaw County | 342 |
| 50837 | Bridgewater | Adair County | 342 |
| 52163 | Protivin | Howard County | 342 |
| 50439 | Goodell | Hancock County | 340 |
| 50440 | Grafton | Worth County | 340 |
| 50546 | Havelock | Pocahontas County | 339 |
| 50147 | Lineville | Wayne County | 338 |
| 51444 | Halbur | Carroll County | 338 |
| 51631 | Braddyville | Page County | 338 |
| 50430 | Corwith | Hancock County | 333 |
| 50444 | Hanlontown | Worth County | 333 |
| 51061 | Washta | Cherokee County | 330 |
| 50654 | Masonville | Buchanan County | 328 |
| 52074 | Spragueville | Jackson County | 322 |
| 51654 | Thurman | Fremont County | 318 |
| 50484 | Woden | Hancock County | 313 |
| 50591 | Thor | Humboldt County | 309 |
| 50861 | Shannon City | Union County | 309 |
| 50836 | Blockton | Taylor County | 308 |
| 52164 | Randalia | Fayette County | 308 |
| 52048 | Garber | Clayton County | 307 |
| 52232 | Hartwick | Poweshiek County | 306 |
| 50218 | Patterson | Madison County | 305 |
| 52134 | Chester | Howard County | 305 |
| 51540 | Hastings | Mills County | 304 |
| 51366 | Webb | Clay County | 303 |
| 52158 | Marquette | Clayton County | 298 |
| 52044 | Elkport | Clayton County | 297 |
| 51037 | Meriden | Cherokee County | 293 |
| 52646 | Oakville | Des Moines County | 293 |
| 50848 | Gravity | Taylor County | 289 |
| 52355 | Webster | Keokuk County | 289 |
| 50027 | Barnes City | Mahaska County | 288 |
| 50254 | Thayer | Union County | 288 |
| 51440 | Dedham | Carroll County | 287 |
| 52077 | Volga | Clayton County | 287 |
| 51343 | Greenville | Clay County | 284 |
| 51650 | Riverton | Fremont County | 284 |
| 50559 | Lone Rock | Kossuth County | 283 |
| 51029 | Larrabee | Cherokee County | 280 |
| 50068 | Derby | Lucas County | 279 |
| 52207 | Baldwin | Jackson County | 278 |
| 52660 | Yarmouth | Des Moines County | 278 |
| 50051 | Clemons | Marshall County | 277 |
| 52560 | Floris | Davis County | 275 |
| 52581 | Plano | Appanoose County | 275 |
| 52737 | Columbus City | Louisa County | 274 |
| 50515 | Ayrshire | Palo Alto County | 271 |
| 51545 | Little Sioux | Harrison County | 271 |
| 51648 | Percival | Fremont County | 271 |
| 52758 | McCausland | Scott County | 266 |
| 50067 | Decatur | Decatur County | 265 |
| 52566 | Kirkville | Wapello County | 262 |
| 50432 | Crystal Lake | Hancock County | 261 |
| 52334 | South Amana | Iowa County | 259 |
| 50571 | Palmer | Pocahontas County | 254 |
| 50576 | Rembrandt | Buena Vista County | 251 |
| 50631 | Frederika | Bremer County | 250 |
| 50038 | Booneville | Dallas County | 247 |
| 51645 | Imogene | Fremont County | 247 |
| 50673 | Stout | Grundy County | 245 |
| 50057 | Columbia | Marion County | 244 |
| 50252 | Swan | Marion County | 244 |
| 52354 | Watkins | Benton County | 243 |
| 52257 | Luzerne | Benton County | 241 |
| 52757 | Low Moor | Clinton County | 239 |
| 50586 | Somers | Calhoun County | 235 |
| 51647 | Northboro | Page County | 233 |
| 50531 | Dolliver | Emmet County | 232 |
| 52630 | Hillsboro | Lee County | 230 |
| 50470 | Rowan | Wright County | 223 |
| 52056 | Luxemburg | Dubuque County | 222 |
| 50066 | Dawson | Dallas County | 218 |
| 51520 | Arion | Crawford County | 218 |
| 51044 | Oto | Woodbury County | 216 |
| 50477 | Swaledale | Cerro Gordo County | 215 |
| 51637 | College Springs | Page County | 215 |
| 50431 | Coulter | Franklin County | 206 |
| 50567 | Nemaha | Sac County | 206 |
| 51552 | Marne | Cass County | 204 |
| 50594 | Vincent | Webster County | 201 |
| 52573 | Mount Sterling | Van Buren County | 201 |
| 50042 | Brayton | Audubon County | 200 |
| 52555 | Exline | Appanoose County | 199 |
| 50074 | Ellston | Ringgold County | 195 |
| 50863 | Tingley | Ringgold County | 194 |
| 50116 | Hamilton | Marion County | 191 |
| 50465 | Rake | Winnebago County | 187 |
| 50433 | Dougherty | Cerro Gordo County | 181 |
| 52219 | Prairieburg | Linn County | 180 |
| 50671 | Stanley | Fayette County | 179 |
| 50582 | Rutland | Humboldt County | 178 |
| 50520 | Bradgate | Humboldt County | 177 |
| 50262 | Van Wert | Decatur County | 174 |
| 50473 | Scarville | Winnebago County | 171 |
| 51452 | Lidderdale | Carroll County | 171 |
| 51008 | Brunsville | Plymouth County | 168 |
| 51009 | Calumet | O'Brien County | 166 |
| 50857 | Nodaway | Adams County | 161 |
| 50231 | Randall | Hamilton County | 157 |
| 50860 | Redding | Ringgold County | 156 |
| 52308 | Millersburg | Iowa County | 155 |
| 50152 | Luther | Boone County | 153 |
| 50570 | Ottosen | Humboldt County | 152 |
| 51447 | Kirkman | Shelby County | 152 |
| 50545 | Hardy | Humboldt County | 150 |
| 50623 | Dewar | Black Hawk County | 150 |
| 52647 | Olds | Henry County | 150 |
| 51630 | Blanchard | Page County | 149 |
| 51244 | Matlock | Sioux County | 147 |
| 50117 | Hamlin | Audubon County | 145 |
| 52593 | Udell | Appanoose County | 145 |
| 51363 | Superior | Dickinson County | 143 |
| 51578 | Westphalia | Shelby County | 142 |
| 50592 | Truesdale | Buena Vista County | 141 |
| 52774 | Welton | Clinton County | 141 |
| 50239 | Saint Anthony | Marshall County | 139 |
| 50272 | Williamson | Lucas County | 139 |
| 50605 | Aredale | Franklin County | 139 |
| 52036 | Delaware | Delaware County | 139 |
| 50040 | Boxholm | Boone County | 138 |
| 51651 | Shambaugh | Page County | 138 |
| 52166 | Saint Lucas | Fayette County | 138 |
| 50427 | Chapin | Franklin County | 137 |
| 51550 | Magnolia | Harrison County | 137 |
| 50269 | Whitten | Hardin County | 133 |
| 50155 | Macksburg | Madison County | 132 |
| 50274 | Wiota | Cass County | 132 |
| 50241 | Saint Marys | Warren County | 131 |
| 50664 | Oran | Fayette County | 131 |
| 50064 | Dana | Greene County | 129 |
| 52071 | Saint Donatus | Jackson County | 128 |
| 52075 | Springbrook | Jackson County | 128 |
| 50102 | Garden City | Hardin County | 127 |
| 52252 | Langworthy | Jones County | 126 |
| 51111 | Sioux City | Woodbury County | 124 |
| 50657 | Morrison | Grundy County | 122 |
| 52701 | Andover | Clinton County | 121 |
| 52220 | Conroy | Iowa County | 119 |
| 50652 | Lincoln | Tama County | 118 |
| 50145 | Liberty Center | Warren County | 116 |
| 51045 | Oyens | Plymouth County | 113 |
| 50556 | Ledyard | Kossuth County | 110 |
| 50527 | Curlew | Palo Alto County | 106 |
| 50227 | Popejoy | Franklin County | 103 |
| 50467 | Rock Falls | Cerro Gordo County | 103 |
| 50078 | Ferguson | Marshall County | 102 |
| 52759 | Montpelier | Muscatine County | 101 |
| 52344 | Troy Mills | Linn County | 100 |
| 50862 | Sharpsburg | Taylor County | 99 |
| 50041 | Bradford | Franklin County | 98 |
| 50104 | Gibson | Keokuk County | 93 |
| 51340 | Fostoria | Clay County | 93 |
| 52066 | North Buena Vista | Clayton County | 92 |
| 50137 | Killduff | Jasper County | 90 |
| 51554 | Mineola | Mills County | 88 |
| 52652 | Swedesburg | Henry County | 87 |
| 52568 | Martinsburg | Keokuk County | 84 |
| 50052 | Clio | Wayne County | 82 |
| 50454 | Little Cedar | Mitchell County | 82 |
| 50426 | Carpenter | Mitchell County | 79 |
| 52348 | Vining | Tama County | 79 |
| 51011 | Chatsworth | Sioux County | 77 |
| 50552 | Knierim | Calhoun County | 75 |
| 50842 | Cromwell | Union County | 73 |
| 51015 | Climbing Hill | Woodbury County | 71 |
| 50101 | Galt | Wright County | 68 |
| 50573 | Plover | Pocahontas County | 68 |
| 52562 | Hayesville | Keokuk County | 68 |
| 52548 | Chillicothe | Wapello County | 67 |
| 51459 | Ralston | Carroll County | 65 |
| 52657 | Saint Paul | Lee County | 65 |
| 50847 | Grant | Montgomery County | 64 |
| 51051 | Rodney | Monona County | 62 |
| 50835 | Benton | Ringgold County | 61 |
| 52631 | Houghton | Lee County | 61 |
| 50839 | Carbon | Adams County | 59 |
| 51460 | Ricketts | Crawford County | 59 |
| 51451 | Lanesboro | Carroll County | 58 |
| 52588 | Selma | Van Buren County | 58 |
| 50031 | Beaver | Boone County | 57 |
| 50255 | Thornburg | Keokuk County | 56 |
| 50620 | Colwell | Floyd County | 55 |
| 52771 | Teeds Grove | Clinton County | 55 |
| 52312 | Morley | Jones County | 49 |
| 52307 | Middle Amana | Iowa County | 48 |
| 50551 | Jolley | Calhoun County | 45 |
| 50608 | Austinville | Butler County | 43 |
| 51341 | Gillett Grove | Clay County | 39 |
| 50110 | Gray | Audubon County | 35 |
| 51432 | Aspinwall | Crawford County | 35 |
| 51656 | Yorktown | Page County | 35 |
| 50165 | Millerton | Wayne County | 33 |
| 50593 | Varina | Pocahontas County | 32 |
| 50831 | Arispe | Union County | 29 |
| 50521 | Burnside | Webster County | 17 |
| 50649 | Kesley | Butler County | 16 |
| 50033 | Bevington | Madison County | 12 |
| 50127 | Ira | Jasper County | 0 |
| 50319 | Des Moines | Polk County | 0 |
ZIP Codes and ZCTAs (ZIP Code Tabulation Areas) serve different purposes. ZIP Codes are postal codes created by the USPS for mail delivery, and are not correlated to geographical coordinates. ZCTAs provide a way to analyze census data in relation to ZIP Code areas while maintaining geographic consistency and protecting privacy. In addition, there are more ZIP Codes than ZCTAs, because many ZIP Codes for PO Boxes or unique entities don't have corresponding ZCTAs (US Census).
The data shown reflect ZCTAs from the US Census. As of 2024, there are 970 ZCTAs in Iowa (US Census).