Demographics Table
Demographic Data Report for Iowa by County
Population: Age 50 and over
All Races (includes Hispanic), Both Sexes
2020-2024 American Community Survey 5-Year Data
Sorted by Percent
County
|
2023 Rural-Urban Continuum Codes Φ
|
Value (Percent)
|
People (Age 50 And Over)
|
Rank within US (of 3143 counties) 
|
|---|---|---|---|---|
| United States | N/A | 36.1 | 120,764,820 | N/A |
| Iowa | N/A | 36.4 | 1,169,562 | 28 of 52 |
| Story County | Urban | 25.7 | 25,845 | 3,101 |
| Johnson County | Urban | 27.4 | 42,977 | 3,067 |
| Dallas County | Urban | 29.0 | 31,315 | 2,996 |
| Polk County | Urban | 31.4 | 157,954 | 2,855 |
| Sioux County | Rural | 32.0 | 11,594 | 2,827 |
| Buena Vista County | Rural | 32.8 | 6,804 | 2,752 |
| Woodbury County | Urban | 33.1 | 35,204 | 2,725 |
| Black Hawk County | Urban | 33.8 | 44,352 | 2,659 |
| Warren County | Urban | 35.4 | 19,246 | 2,462 |
| Davis County | Rural | 35.7 | 3,269 | 2,419 |
| Lyon County | Rural | 35.7 | 4,345 | 2,419 |
| Linn County | Urban | 35.9 | 82,497 | 2,398 |
| Scott County | Urban | 36.4 | 63,471 | 2,315 |
| Marshall County | Rural | 36.8 | 14,757 | 2,237 |
| Bremer County | Urban | 36.9 | 9,306 | 2,215 |
| Crawford County | Rural | 37.4 | 6,088 | 2,127 |
| Wapello County | Rural | 37.4 | 13,224 | 2,127 |
| Mahaska County | Rural | 37.5 | 8,249 | 2,115 |
| Decatur County | Rural | 37.6 | 2,915 | 2,097 |
| Muscatine County | Rural | 37.7 | 16,063 | 2,083 |
| Buchanan County | Rural | 38.0 | 7,874 | 2,019 |
| Dubuque County | Urban | 38.1 | 37,694 | 1,996 |
| Madison County | Urban | 38.1 | 6,447 | 1,996 |
| Pottawattamie County | Urban | 38.1 | 35,637 | 1,996 |
| Clarke County | Rural | 38.3 | 3,700 | 1,954 |
| Webster County | Rural | 38.3 | 14,140 | 1,954 |
| Marion County | Rural | 38.7 | 13,011 | 1,861 |
| O'Brien County | Rural | 38.8 | 5,485 | 1,836 |
| Plymouth County | Rural | 39.2 | 10,101 | 1,737 |
| Howard County | Rural | 39.3 | 3,713 | 1,716 |
| Jasper County | Urban | 39.4 | 14,968 | 1,693 |
| Washington County | Urban | 39.5 | 8,916 | 1,675 |
| Union County | Rural | 39.6 | 4,754 | 1,649 |
| Wright County | Rural | 39.6 | 5,071 | 1,649 |
| Henry County | Rural | 40.2 | 8,042 | 1,522 |
| Boone County | Urban | 40.3 | 10,758 | 1,496 |
| Poweshiek County | Rural | 40.3 | 7,479 | 1,496 |
| Carroll County | Rural | 40.5 | 8,338 | 1,457 |
| Mills County | Urban | 40.7 | 5,925 | 1,407 |
| Palo Alto County | Rural | 40.7 | 3,611 | 1,407 |
| Des Moines County | Rural | 40.8 | 15,708 | 1,388 |
| Grundy County | Urban | 40.8 | 5,055 | 1,388 |
| Hamilton County | Rural | 41.0 | 6,098 | 1,330 |
| Humboldt County | Rural | 41.0 | 3,936 | 1,330 |
| Louisa County | Rural | 41.0 | 4,383 | 1,330 |
| Wayne County | Rural | 41.0 | 2,675 | 1,330 |
| Ida County | Rural | 41.1 | 2,842 | 1,306 |
| Harrison County | Urban | 41.2 | 6,033 | 1,292 |
| Clinton County | Rural | 41.5 | 19,216 | 1,227 |
| Tama County | Rural | 41.5 | 6,994 | 1,227 |
| Benton County | Urban | 41.6 | 10,713 | 1,205 |
| Clay County | Rural | 41.6 | 6,843 | 1,205 |
| Winnebago County | Rural | 41.6 | 4,398 | 1,205 |
| Franklin County | Rural | 41.7 | 4,153 | 1,185 |
| Monroe County | Rural | 41.7 | 3,133 | 1,185 |
| Iowa County | Rural | 41.8 | 6,902 | 1,160 |
| Mitchell County | Rural | 41.8 | 4,417 | 1,160 |
| Jones County | Urban | 42.1 | 8,789 | 1,096 |
| Keokuk County | Rural | 42.2 | 4,189 | 1,072 |
| Cedar County | Rural | 42.3 | 7,759 | 1,048 |
| Allamakee County | Rural | 42.4 | 5,978 | 1,033 |
| Lee County | Rural | 42.6 | 14,011 | 999 |
| Lucas County | Rural | 42.6 | 3,715 | 999 |
| Taylor County | Rural | 42.7 | 2,506 | 978 |
| Butler County | Rural | 42.8 | 6,113 | 960 |
| Calhoun County | Rural | 42.8 | 4,194 | 960 |
| Floyd County | Rural | 42.8 | 6,559 | 960 |
| Adair County | Rural | 42.9 | 3,200 | 942 |
| Chickasaw County | Rural | 43.0 | 5,076 | 924 |
| Delaware County | Rural | 43.0 | 7,542 | 924 |
| Hancock County | Rural | 43.0 | 4,585 | 924 |
| Montgomery County | Rural | 43.0 | 4,391 | 924 |
| Cass County | Rural | 43.2 | 5,651 | 888 |
| Emmet County | Rural | 43.2 | 4,005 | 888 |
| Winneshiek County | Rural | 43.2 | 8,591 | 888 |
| Worth County | Rural | 43.4 | 3,193 | 852 |
| Osceola County | Rural | 43.8 | 2,673 | 792 |
| Cerro Gordo County | Rural | 43.9 | 18,710 | 775 |
| Jefferson County | Rural | 43.9 | 6,892 | 775 |
| Appanoose County | Rural | 44.0 | 5,365 | 756 |
| Fayette County | Rural | 44.0 | 8,489 | 756 |
| Greene County | Rural | 44.0 | 3,823 | 756 |
| Van Buren County | Rural | 44.0 | 3,185 | 756 |
| Cherokee County | Rural | 44.1 | 5,115 | 737 |
| Page County | Rural | 44.1 | 6,669 | 737 |
| Shelby County | Rural | 44.1 | 5,194 | 737 |
| Jackson County | Rural | 44.3 | 8,585 | 719 |
| Hardin County | Rural | 44.5 | 7,409 | 681 |
| Pocahontas County | Rural | 44.5 | 3,136 | 681 |
| Ringgold County | Rural | 44.5 | 2,067 | 681 |
| Monona County | Rural | 44.6 | 3,817 | 673 |
| Kossuth County | Rural | 44.7 | 6,485 | 664 |
| Guthrie County | Urban | 45.5 | 4,867 | 571 |
| Clayton County | Rural | 45.9 | 7,817 | 535 |
| Fremont County | Rural | 46.0 | 2,995 | 525 |
| Adams County | Rural | 46.2 | 1,675 | 494 |
| Sac County | Rural | 46.2 | 4,473 | 494 |
| Audubon County | Rural | 46.5 | 2,601 | 468 |
| Dickinson County | Rural | 49.1 | 8,835 | 265 |
Notes:
Created by statecancerprofiles.cancer.gov on 03/25/2026 9:19 pm.
Φ Rural–urban county classifications are based on the 2023 USDA Rural–Urban Continuum Codes (except for Connecticut Counties which use 2013 codes). State-level cancer rates for rural areas are calculated using cancer cases registered exclusively in rural counties, while state-level cancer rates for urban areas are calculated using cases registered exclusively in urban counties.
Source: Demographic data provided by the Census Bureau and the American Community Survey.
For more information about Population: Age 50 and over, see the dictionary.
Data for United States does not include Puerto Rico.