Demographics Table
County
|
Value (Percent)
|
People (Age 40 And Over)
|
Rank within US (of 3146 counties) 
|
|---|---|---|---|
| United States | 47.6 | 154,520,356 | N/A |
| Iowa | 47.7 | 1,498,923 | 27 of 52 |
| Story County | 33.5 | 32,510 | 3,123 |
| Johnson County | 36.7 | 54,566 | 3,086 |
| Dallas County | 41.5 | 36,181 | 2,937 |
| Sioux County | 41.7 | 14,528 | 2,925 |
| Polk County | 43.6 | 209,158 | 2,811 |
| Buena Vista County | 43.7 | 8,756 | 2,808 |
| Black Hawk County | 43.9 | 58,073 | 2,793 |
| Woodbury County | 44.5 | 45,661 | 2,738 |
| Davis County | 45.9 | 4,092 | 2,596 |
| Decatur County | 46.2 | 3,683 | 2,568 |
| Linn County | 46.8 | 104,877 | 2,493 |
| Muscatine County | 47.5 | 20,355 | 2,405 |
| Lyon County | 47.5 | 5,589 | 2,404 |
| Scott County | 47.7 | 82,203 | 2,371 |
| Warren County | 47.8 | 23,913 | 2,354 |
| Crawford County | 48.5 | 8,256 | 2,246 |
| Marshall County | 48.6 | 19,426 | 2,226 |
| Dubuque County | 48.7 | 47,250 | 2,209 |
| Webster County | 48.9 | 17,879 | 2,163 |
| Buchanan County | 49.1 | 10,372 | 2,125 |
| Marion County | 49.1 | 16,297 | 2,121 |
| Wapello County | 49.3 | 17,334 | 2,078 |
| Mahaska County | 49.4 | 10,939 | 2,069 |
| Pottawattamie County | 49.6 | 46,315 | 2,031 |
| Henry County | 49.6 | 9,890 | 2,030 |
| Bremer County | 49.8 | 12,389 | 1,983 |
| Plymouth County | 50.0 | 12,541 | 1,945 |
| Union County | 50.3 | 6,211 | 1,903 |
| Clarke County | 50.4 | 4,713 | 1,879 |
| Washington County | 50.5 | 11,170 | 1,830 |
| Madison County | 50.8 | 8,136 | 1,774 |
| Poweshiek County | 50.8 | 9,348 | 1,761 |
| Palo Alto County | 51.4 | 4,627 | 1,614 |
| Howard County | 51.6 | 4,759 | 1,566 |
| Winneshiek County | 51.8 | 10,491 | 1,512 |
| Winnebago County | 52.0 | 5,475 | 1,467 |
| Louisa County | 52.2 | 5,831 | 1,420 |
| Jasper County | 52.2 | 19,298 | 1,415 |
| Boone County | 52.4 | 13,810 | 1,384 |
| Taylor County | 52.4 | 3,231 | 1,378 |
| Mills County | 52.5 | 7,894 | 1,347 |
| Carroll County | 52.5 | 10,653 | 1,342 |
| Humboldt County | 52.6 | 5,021 | 1,334 |
| Benton County | 52.7 | 13,501 | 1,309 |
| Wayne County | 52.7 | 3,386 | 1,306 |
| Clinton County | 52.7 | 24,733 | 1,285 |
| Wright County | 52.8 | 6,721 | 1,274 |
| Iowa County | 52.8 | 8,549 | 1,266 |
| Tama County | 53.0 | 9,031 | 1,217 |
| Des Moines County | 53.2 | 20,938 | 1,190 |
| Franklin County | 53.2 | 5,405 | 1,179 |
| Emmet County | 53.3 | 5,033 | 1,140 |
| Fayette County | 53.4 | 10,582 | 1,119 |
| Lee County | 53.5 | 18,306 | 1,112 |
| Grundy County | 53.5 | 6,579 | 1,109 |
| O'Brien County | 53.5 | 7,408 | 1,089 |
| Clay County | 53.6 | 8,686 | 1,084 |
| Jones County | 53.6 | 11,020 | 1,075 |
| Hamilton County | 53.6 | 8,041 | 1,067 |
| Floyd County | 53.7 | 8,481 | 1,050 |
| Osceola County | 53.8 | 3,256 | 1,030 |
| Ida County | 53.8 | 3,715 | 1,023 |
| Cedar County | 53.9 | 9,950 | 1,010 |
| Delaware County | 53.9 | 9,269 | 1,000 |
| Ringgold County | 54.0 | 2,681 | 989 |
| Monroe County | 54.0 | 4,217 | 987 |
| Jackson County | 54.1 | 10,495 | 967 |
| Keokuk County | 54.2 | 5,525 | 938 |
| Page County | 54.3 | 8,283 | 933 |
| Mitchell County | 54.3 | 5,759 | 924 |
| Harrison County | 54.3 | 7,655 | 915 |
| Calhoun County | 54.4 | 5,304 | 894 |
| Allamakee County | 54.5 | 7,527 | 879 |
| Cerro Gordo County | 54.5 | 23,358 | 871 |
| Lucas County | 54.6 | 4,688 | 861 |
| Worth County | 54.6 | 4,067 | 857 |
| Hancock County | 54.7 | 5,910 | 848 |
| Kossuth County | 54.9 | 8,218 | 819 |
| Butler County | 55.0 | 8,040 | 802 |
| Chickasaw County | 55.0 | 6,613 | 797 |
| Jefferson County | 55.0 | 9,980 | 795 |
| Greene County | 55.0 | 4,922 | 794 |
| Hardin County | 55.0 | 9,383 | 793 |
| Appanoose County | 55.1 | 6,864 | 777 |
| Adair County | 55.4 | 3,923 | 723 |
| Montgomery County | 55.5 | 5,577 | 707 |
| Shelby County | 55.6 | 6,453 | 685 |
| Guthrie County | 55.6 | 5,936 | 679 |
| Van Buren County | 55.7 | 3,981 | 676 |
| Cherokee County | 55.8 | 6,330 | 658 |
| Cass County | 56.1 | 7,348 | 610 |
| Monona County | 56.3 | 4,914 | 587 |
| Adams County | 56.5 | 2,072 | 567 |
| Sac County | 56.6 | 5,549 | 544 |
| Clayton County | 56.7 | 9,993 | 534 |
| Fremont County | 57.1 | 3,963 | 506 |
| Audubon County | 57.4 | 3,200 | 467 |
| Pocahontas County | 57.8 | 3,927 | 428 |
| Dickinson County | 58.3 | 9,977 | 378 |
Notes:
Created by statecancerprofiles.cancer.gov on 03/21/2023 8:31 am.
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.
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 03/21/2023 8:31 am.
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.
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.