Demographics Table
County
|
Value (Percent)
|
People (Age 40 And Over)
|
Rank within US (of 3143 counties) 
|
|---|---|---|---|
| Iowa | 47.8 | 1,518,059 | 31 of 52 |
| United States | 47.9 | 157,871,085 | N/A |
| Story County | 34.3 | 33,643 | 3,119 |
| Johnson County | 37.6 | 57,140 | 3,075 |
| Dallas County | 42.1 | 40,633 | 2,920 |
| Sioux County | 42.9 | 15,294 | 2,872 |
| Polk County | 43.9 | 214,394 | 2,805 |
| Black Hawk County | 44.3 | 58,183 | 2,779 |
| Buena Vista County | 44.4 | 9,194 | 2,771 |
| Woodbury County | 44.9 | 47,217 | 2,716 |
| Davis County | 45.2 | 4,094 | 2,693 |
| Decatur County | 45.8 | 3,538 | 2,608 |
| Crawford County | 46.0 | 7,616 | 2,588 |
| Linn County | 47.4 | 108,242 | 2,435 |
| Muscatine County | 47.5 | 20,496 | 2,414 |
| Lyon County | 47.6 | 5,684 | 2,409 |
| Clarke County | 47.7 | 4,644 | 2,389 |
| Warren County | 48.0 | 24,884 | 2,336 |
| Scott County | 48.2 | 83,889 | 2,311 |
| Dubuque County | 48.2 | 47,568 | 2,303 |
| Marshall County | 48.2 | 19,350 | 2,302 |
| Mahaska County | 48.5 | 10,738 | 2,247 |
| Bremer County | 48.6 | 12,082 | 2,237 |
| Webster County | 48.8 | 18,120 | 2,185 |
| Buchanan County | 49.0 | 10,084 | 2,161 |
| Pottawattamie County | 49.3 | 46,166 | 2,095 |
| Wapello County | 49.4 | 17,442 | 2,092 |
| Union County | 49.5 | 6,032 | 2,068 |
| Marion County | 49.5 | 16,516 | 2,067 |
| Washington County | 50.3 | 11,320 | 1,904 |
| Howard County | 50.4 | 4,767 | 1,868 |
| Plymouth County | 50.5 | 12,889 | 1,856 |
| Henry County | 50.8 | 10,400 | 1,777 |
| Madison County | 50.8 | 8,334 | 1,773 |
| Poweshiek County | 50.9 | 9,481 | 1,736 |
| O'Brien County | 50.9 | 7,201 | 1,729 |
| Jasper County | 51.1 | 19,274 | 1,666 |
| Winnebago County | 51.3 | 5,506 | 1,640 |
| Clay County | 51.4 | 8,434 | 1,614 |
| Ida County | 51.5 | 3,592 | 1,597 |
| Monroe County | 51.6 | 3,913 | 1,574 |
| Winneshiek County | 51.6 | 10,365 | 1,569 |
| Tama County | 51.6 | 8,811 | 1,561 |
| Wayne County | 51.6 | 3,359 | 1,547 |
| Humboldt County | 52.2 | 5,018 | 1,415 |
| Palo Alto County | 52.3 | 4,701 | 1,388 |
| Carroll County | 52.3 | 10,854 | 1,376 |
| Harrison County | 52.4 | 7,644 | 1,356 |
| Montgomery County | 52.5 | 5,426 | 1,323 |
| Mills County | 52.6 | 7,713 | 1,296 |
| Boone County | 52.6 | 14,065 | 1,288 |
| Wright County | 52.7 | 6,841 | 1,279 |
| Louisa County | 52.7 | 5,742 | 1,277 |
| Mitchell County | 52.7 | 5,552 | 1,271 |
| Clinton County | 52.8 | 24,580 | 1,267 |
| Jefferson County | 52.9 | 8,378 | 1,244 |
| Cedar County | 52.9 | 9,781 | 1,240 |
| Des Moines County | 52.9 | 20,663 | 1,239 |
| Fayette County | 52.9 | 10,358 | 1,232 |
| Calhoun County | 53.0 | 5,280 | 1,212 |
| Grundy County | 53.0 | 6,543 | 1,202 |
| Adair County | 53.1 | 3,947 | 1,196 |
| Emmet County | 53.1 | 5,005 | 1,195 |
| Hamilton County | 53.2 | 8,021 | 1,156 |
| Benton County | 53.4 | 13,688 | 1,117 |
| Chickasaw County | 53.4 | 6,420 | 1,105 |
| Floyd County | 53.6 | 8,401 | 1,058 |
| Appanoose County | 53.7 | 6,609 | 1,044 |
| Iowa County | 53.7 | 8,918 | 1,036 |
| Taylor County | 53.7 | 3,188 | 1,033 |
| Ringgold County | 53.8 | 2,548 | 1,028 |
| Lee County | 53.8 | 18,156 | 1,016 |
| Keokuk County | 53.9 | 5,413 | 1,010 |
| Lucas County | 53.9 | 4,662 | 995 |
| Allamakee County | 54.0 | 7,596 | 974 |
| Jackson County | 54.0 | 10,533 | 968 |
| Jones County | 54.1 | 11,198 | 941 |
| Shelby County | 54.2 | 6,372 | 928 |
| Osceola County | 54.3 | 3,350 | 907 |
| Cerro Gordo County | 54.3 | 23,466 | 900 |
| Franklin County | 54.3 | 5,465 | 898 |
| Butler County | 54.4 | 7,841 | 892 |
| Kossuth County | 54.4 | 8,062 | 887 |
| Delaware County | 54.5 | 9,534 | 871 |
| Greene County | 54.7 | 4,828 | 842 |
| Worth County | 54.7 | 4,074 | 839 |
| Pocahontas County | 54.9 | 3,891 | 805 |
| Hancock County | 54.9 | 5,952 | 792 |
| Page County | 55.1 | 8,405 | 751 |
| Hardin County | 55.4 | 9,410 | 701 |
| Monona County | 55.7 | 4,862 | 663 |
| Van Buren County | 55.7 | 4,010 | 652 |
| Adams County | 55.9 | 2,065 | 639 |
| Cass County | 56.0 | 7,372 | 621 |
| Sac County | 56.1 | 5,513 | 614 |
| Fremont County | 56.1 | 3,763 | 605 |
| Clayton County | 56.5 | 9,698 | 560 |
| Audubon County | 56.8 | 3,211 | 530 |
| Cherokee County | 56.8 | 6,593 | 525 |
| Guthrie County | 56.9 | 6,035 | 515 |
| Dickinson County | 58.8 | 10,316 | 327 |
Notes:
Created by statecancerprofiles.cancer.gov on 09/24/2023 9:13 pm.
Source: Demographic data provided by the Census Bureau and the American Community Survey.
For more information about Population: Age 40 and over, see the dictionary.
Data for United States does not include Puerto Rico.
Created by statecancerprofiles.cancer.gov on 09/24/2023 9:13 pm.
Source: Demographic data provided by the Census Bureau and the American Community Survey.
For more information about Population: Age 40 and over, see the dictionary.
Data for United States does not include Puerto Rico.