Demographics Table
County
|
Value (Percent)
|
People (Age Under 18)
|
Rank within US (of 3146 counties) 
|
|---|---|---|---|
| United States | 22.6 | 73,429,392 | N/A |
| Iowa | 23.2 | 728,737 | 18 of 52 |
| Jefferson County | 15.8 | 2,867 | 3,051 |
| Story County | 16.6 | 16,104 | 2,990 |
| Winneshiek County | 18.5 | 3,750 | 2,763 |
| Dickinson County | 18.9 | 3,236 | 2,697 |
| Poweshiek County | 19.6 | 3,596 | 2,522 |
| Page County | 19.9 | 3,045 | 2,424 |
| Johnson County | 20.1 | 29,819 | 2,397 |
| Monona County | 20.5 | 1,786 | 2,274 |
| Audubon County | 20.6 | 1,146 | 2,224 |
| Cerro Gordo County | 20.6 | 8,813 | 2,222 |
| Emmet County | 20.8 | 1,959 | 2,166 |
| Adams County | 20.9 | 767 | 2,124 |
| Fayette County | 21.0 | 4,149 | 2,099 |
| Worth County | 21.0 | 1,561 | 2,097 |
| Hardin County | 21.0 | 3,582 | 2,090 |
| Calhoun County | 21.2 | 2,063 | 2,032 |
| Webster County | 21.3 | 7,768 | 1,999 |
| Clayton County | 21.3 | 3,758 | 1,977 |
| Jones County | 21.4 | 4,391 | 1,966 |
| Adair County | 21.4 | 1,519 | 1,922 |
| Cherokee County | 21.5 | 2,437 | 1,905 |
| Pocahontas County | 21.6 | 1,465 | 1,870 |
| Black Hawk County | 21.7 | 28,685 | 1,816 |
| Winnebago County | 21.7 | 2,286 | 1,796 |
| Boone County | 21.7 | 5,724 | 1,792 |
| Decatur County | 21.7 | 1,735 | 1,775 |
| Lee County | 21.8 | 7,448 | 1,767 |
| Fremont County | 21.8 | 1,512 | 1,766 |
| Henry County | 21.9 | 4,360 | 1,733 |
| Appanoose County | 21.9 | 2,733 | 1,699 |
| Kossuth County | 22.0 | 3,293 | 1,683 |
| Hancock County | 22.1 | 2,388 | 1,635 |
| Cass County | 22.2 | 2,906 | 1,595 |
| Jackson County | 22.2 | 4,312 | 1,578 |
| Bremer County | 22.3 | 5,538 | 1,561 |
| Shelby County | 22.3 | 2,587 | 1,545 |
| Sac County | 22.3 | 2,188 | 1,530 |
| Jasper County | 22.4 | 8,275 | 1,503 |
| Union County | 22.5 | 2,775 | 1,472 |
| Floyd County | 22.6 | 3,562 | 1,432 |
| Clay County | 22.6 | 3,661 | 1,419 |
| Louisa County | 22.6 | 2,528 | 1,409 |
| Des Moines County | 22.7 | 8,929 | 1,383 |
| Wapello County | 22.7 | 7,987 | 1,350 |
| Guthrie County | 22.8 | 2,431 | 1,335 |
| Clinton County | 22.8 | 10,689 | 1,334 |
| Keokuk County | 22.8 | 2,322 | 1,329 |
| Greene County | 22.8 | 2,042 | 1,312 |
| Chickasaw County | 22.9 | 2,752 | 1,281 |
| Montgomery County | 22.9 | 2,301 | 1,279 |
| Hamilton County | 22.9 | 3,433 | 1,278 |
| Dubuque County | 22.9 | 22,203 | 1,275 |
| Iowa County | 23.0 | 3,720 | 1,240 |
| Harrison County | 23.0 | 3,238 | 1,237 |
| Grundy County | 23.1 | 2,835 | 1,205 |
| Cedar County | 23.1 | 4,255 | 1,200 |
| Franklin County | 23.1 | 2,343 | 1,193 |
| Allamakee County | 23.1 | 3,194 | 1,173 |
| Lucas County | 23.2 | 1,988 | 1,158 |
| Taylor County | 23.3 | 1,435 | 1,110 |
| Butler County | 23.3 | 3,408 | 1,097 |
| Humboldt County | 23.3 | 2,227 | 1,090 |
| Van Buren County | 23.3 | 1,669 | 1,071 |
| Marion County | 23.3 | 7,744 | 1,068 |
| Osceola County | 23.4 | 1,416 | 1,052 |
| Mitchell County | 23.4 | 2,484 | 1,046 |
| Ida County | 23.5 | 1,619 | 1,032 |
| Linn County | 23.5 | 52,610 | 1,023 |
| Pottawattamie County | 23.5 | 21,991 | 1,003 |
| Monroe County | 23.6 | 1,840 | 994 |
| Benton County | 23.6 | 6,052 | 979 |
| Palo Alto County | 23.7 | 2,130 | 963 |
| O'Brien County | 23.7 | 3,279 | 942 |
| Scott County | 23.9 | 41,147 | 851 |
| Mills County | 23.9 | 3,597 | 823 |
| Delaware County | 24.0 | 4,120 | 805 |
| Mahaska County | 24.0 | 5,316 | 803 |
| Wright County | 24.0 | 3,057 | 797 |
| Tama County | 24.0 | 4,096 | 785 |
| Ringgold County | 24.1 | 1,198 | 754 |
| Carroll County | 24.5 | 4,968 | 646 |
| Clarke County | 24.6 | 2,301 | 625 |
| Washington County | 24.7 | 5,466 | 587 |
| Madison County | 24.8 | 3,963 | 581 |
| Warren County | 24.8 | 12,423 | 564 |
| Crawford County | 24.8 | 4,228 | 560 |
| Muscatine County | 24.9 | 10,700 | 534 |
| Plymouth County | 25.0 | 6,258 | 528 |
| Polk County | 25.0 | 119,828 | 520 |
| Wayne County | 25.2 | 1,618 | 479 |
| Marshall County | 25.2 | 10,064 | 477 |
| Howard County | 25.4 | 2,339 | 448 |
| Buena Vista County | 25.9 | 5,194 | 354 |
| Woodbury County | 26.2 | 26,845 | 320 |
| Buchanan County | 26.7 | 5,649 | 247 |
| Sioux County | 27.1 | 9,432 | 211 |
| Dallas County | 27.9 | 24,336 | 150 |
| Lyon County | 28.3 | 3,330 | 140 |
| Davis County | 29.4 | 2,621 | 106 |
Notes:
Created by statecancerprofiles.cancer.gov on 04/01/2023 2:16 pm.
Source: Demographic data provided by the Census Bureau and the American Community Survey.
For more information about Population: Age under 18, see the dictionary.
Health Service Areas are a single county or cluster of contiguous counties which are relatively self-contained with respect to hospital care. For more detailed information, please see Health Service Area information page. Puerto Rico is being treated as a Health Service Area for this data presentation.
Data for United States does not include Puerto Rico.
Created by statecancerprofiles.cancer.gov on 04/01/2023 2:16 pm.
Source: Demographic data provided by the Census Bureau and the American Community Survey.
For more information about Population: Age under 18, see the dictionary.
Health Service Areas are a single county or cluster of contiguous counties which are relatively self-contained with respect to hospital care. For more detailed information, please see Health Service Area information page. Puerto Rico is being treated as a Health Service Area for this data presentation.
Data for United States does not include Puerto Rico.