Iowa on the US Map
Iowa Counties Map
Below is a map of the 99 counties of Iowa (you can click on the map to enlarge it and to see the major city in each state).
Interactive Map of Iowa Counties
Click on any of the counties on the map to see the county’s population, economic data, time zone, and zip code (the data will appear below the map). Data is sourced from the US Census 2021.
List of the Counties of New Hampshire:
| County | Population | Per sq. km | Largest City |
|---|---|---|---|
| Adair County | 7,439 | 5.05 | Greenfield |
| Adams County | 3,697 | 3.37 | Corning |
| Allamakee County | 14,068 | 8.5 | Waukon |
| Appanoose County | 12,310 | 9.56 | Centerville |
| Audubon County | 5,657 | 4.93 | Audubon |
| Benton County | 25,654 | 13.83 | Vinton |
| Black Hawk County | 131,396 | 89.67 | Waterloo |
| Boone County | 26,721 | 18.08 | Boone |
| Bremer County | 24,863 | 22.04 | Waverly |
| Buchanan County | 20,598 | 13.93 | Independence |
| Buena Vista County | 20,723 | 13.92 | Storm Lake |
| Butler County | 14,421 | 9.6 | Parkersburg |
| Calhoun County | 9,962 | 6.75 | Rockwell City |
| Carroll County | 20,756 | 14.07 | Carroll |
| Cass County | 13,158 | 9 | Atlantic |
| Cedar County | 18,494 | 12.32 | Tipton |
| Cerro Gordo County | 43,185 | 29.34 | Mason City |
| Cherokee County | 11,606 | 7.77 | Cherokee |
| Chickasaw County | 12,021 | 9.2 | New Hampton |
| Clarke County | 9,736 | 8.72 | Osceola |
| Clay County | 16,410 | 11.17 | Spencer |
| Clayton County | 17,173 | 8.52 | Postville |
| Clinton County | 46,589 | 25.88 | Clinton |
| Crawford County | 16,555 | 8.95 | Denison |
| Dallas County | 96,604 | 63.4 | West Des Moines |
| Davis County | 9,066 | 6.97 | Bloomfield |
| Decatur County | 7,718 | 5.6 | Lamoni |
| Delaware County | 17,508 | 11.7 | Manchester |
| Des Moines County | 39,069 | 36.25 | Burlington |
| Dickinson County | 17,536 | 17.79 | Spirit Lake |
| Dubuque County | 98,687 | 62.64 | Dubuque |
| Emmet County | 9,433 | 9.2 | Estherville |
| Fayette County | 19,582 | 10.35 | Oelwein |
| Floyd County | 15,672 | 12.09 | Charles City |
| Franklin County | 10,056 | 6.67 | Hampton |
| Fremont County | 6,702 | 5.06 | Shenandoah |
| Greene County | 8,831 | 5.99 | Jefferson |
| Grundy County | 12,336 | 9.49 | Grundy Center |
| Guthrie County | 10,599 | 6.93 | Stuart |
| Hamilton County | 15,073 | 10.09 | Webster City |
| Hancock County | 10,837 | 7.33 | Forest City |
| Hardin County | 16,997 | 11.53 | Iowa Falls |
| Harrison County | 14,589 | 8.08 | Missouri Valley |
| Henry County | 20,488 | 18.21 | Mount Pleasant |
| Howard County | 9,456 | 7.71 | Cresco |
| Humboldt County | 9,622 | 8.55 | Humboldt |
| Ida County | 6,979 | 6.24 | Ida Grove |
| Iowa County | 16,596 | 10.93 | Williamsburg |
| Jackson County | 19,499 | 11.84 | Maquoketa |
| Jasper County | 37,686 | 19.92 | Newton |
| Jefferson County | 15,846 | 14.05 | Fairfield |
| Johnson County | 151,833 | 95.63 | Iowa City |
| Jones County | 20,680 | 13.87 | Anamosa |
| Keokuk County | 10,050 | 6.7 | Sigourney |
| Kossuth County | 14,823 | 5.88 | Algona |
| Lee County | 33,724 | 25.16 | Fort Madison |
| Linn County | 228,567 | 123.07 | Cedar Rapids |
| Louisa County | 10,891 | 10.47 | Columbus Junction |
| Lucas County | 8,650 | 7.75 | Chariton |
| Lyon County | 11,953 | 7.85 | Rock Rapids |
| Madison County | 16,414 | 11.3 | West Des Moines |
| Mahaska County | 22,132 | 14.97 | Oskaloosa |
| Marion County | 33,381 | 23.24 | Pella |
| Marshall County | 40,137 | 27.07 | Marshalltown |
| Mills County | 14,658 | 12.94 | Glenwood |
| Mitchell County | 10,526 | 8.66 | Osage |
| Monona County | 8,732 | 4.86 | Onawa |
| Monroe County | 7,589 | 6.76 | Albia |
| Montgomery County | 10,327 | 9.4 | Red Oak |
| Muscatine County | 43,145 | 38.08 | Muscatine |
| O’Brien County | 14,139 | 9.53 | Sheldon |
| Osceola County | 6,168 | 5.97 | Sibley |
| Page County | 15,250 | 11.01 | Clarinda |
| Palo Alto County | 8,996 | 6.16 | Emmetsburg |
| Plymouth County | 25,543 | 11.43 | Le Mars |
| Pocahontas County | 7,091 | 4.74 | Pocahontas |
| Polk County | 488,871 | 329.76 | Des Moines |
| Pottawattamie County | 93,571 | 37.98 | Council Bluffs |
| Poweshiek County | 18,628 | 12.3 | Grinnell |
| Ringgold County | 4,739 | 3.42 | Mount Ayr |
| Sac County | 9,829 | 6.6 | Sac City |
| Scott County | 174,170 | 146.8 | Davenport |
| Shelby County | 11,750 | 7.68 | Harlan |
| Sioux County | 35,647 | 17.92 | Sioux Center |
| Story County | 98,106 | 66.16 | Ames |
| Tama County | 17,079 | 9.15 | Tama |
| Taylor County | 5,932 | 4.31 | Lenox |
| Union County | 12,193 | 11.11 | Creston |
| Van Buren County | 7,196 | 5.73 | Keosauqua |
| Wapello County | 35,343 | 31.6 | Ottumwa |
| Warren County | 51,862 | 35.15 | Des Moines |
| Washington County | 22,525 | 15.29 | Washington |
| Wayne County | 6,504 | 4.78 | Corydon |
| Webster County | 37,114 | 20.02 | Fort Dodge |
| Winnebago County | 10,743 | 10.36 | Forest City |
| Winneshiek County | 20,100 | 11.25 | Decorah |
| Woodbury County | 105,102 | 46.49 | Sioux City |
| Worth County | 7,450 | 7.19 | Northwood |
| Wright County | 12,978 | 8.63 | Eagle Grove |