State Cancer Profiles

Interpretation of Demographics Data

Demographic Data Report for Iowa by County
Population: Age 40 and over
All Races (includes Hispanic), Both Sexes
2015-2019 American Community Survey 5-Year Data
Sorted by Count

United States

• Value (Percent) : The value is 47.6 percent.
• People (Age 40 And Over) : The number of people (age 40 and over) is 154,520,356.
• Rank within US : N/A

Iowa

• Value (Percent) : The value is 47.7 percent.
• People (Age 40 And Over) : The number of people (age 40 and over) is 1,498,923.
• Rank within US : This state is ranked 27 of 52

Polk County

• Value (Percent) : The value is 43.6 percent.
• People (Age 40 And Over) : The number of people (age 40 and over) is 209,158.
• Rank within US : This county is ranked 2811 of 3146

Linn County

• Value (Percent) : The value is 46.8 percent.
• People (Age 40 And Over) : The number of people (age 40 and over) is 104,877.
• Rank within US : This county is ranked 2493 of 3146

Scott County

• Value (Percent) : The value is 47.7 percent.
• People (Age 40 And Over) : The number of people (age 40 and over) is 82,203.
• Rank within US : This county is ranked 2371 of 3146

Black Hawk County

• Value (Percent) : The value is 43.9 percent.
• People (Age 40 And Over) : The number of people (age 40 and over) is 58,073.
• Rank within US : This county is ranked 2793 of 3146

Johnson County

• Value (Percent) : The value is 36.7 percent.
• People (Age 40 And Over) : The number of people (age 40 and over) is 54,566.
• Rank within US : This county is ranked 3086 of 3146

Dubuque County

• Value (Percent) : The value is 48.7 percent.
• People (Age 40 And Over) : The number of people (age 40 and over) is 47,250.
• Rank within US : This county is ranked 2209 of 3146

Pottawattamie County

• Value (Percent) : The value is 49.6 percent.
• People (Age 40 And Over) : The number of people (age 40 and over) is 46,315.
• Rank within US : This county is ranked 2031 of 3146

Woodbury County

• Value (Percent) : The value is 44.5 percent.
• People (Age 40 And Over) : The number of people (age 40 and over) is 45,661.
• Rank within US : This county is ranked 2738 of 3146

Dallas County

• Value (Percent) : The value is 41.5 percent.
• People (Age 40 And Over) : The number of people (age 40 and over) is 36,181.
• Rank within US : This county is ranked 2937 of 3146

Story County

• Value (Percent) : The value is 33.5 percent.
• People (Age 40 And Over) : The number of people (age 40 and over) is 32,510.
• Rank within US : This county is ranked 3123 of 3146

Clinton County

• Value (Percent) : The value is 52.7 percent.
• People (Age 40 And Over) : The number of people (age 40 and over) is 24,733.
• Rank within US : This county is ranked 1285 of 3146

Warren County

• Value (Percent) : The value is 47.8 percent.
• People (Age 40 And Over) : The number of people (age 40 and over) is 23,913.
• Rank within US : This county is ranked 2354 of 3146

Cerro Gordo County

• Value (Percent) : The value is 54.5 percent.
• People (Age 40 And Over) : The number of people (age 40 and over) is 23,358.
• Rank within US : This county is ranked 871 of 3146

Des Moines County

• Value (Percent) : The value is 53.2 percent.
• People (Age 40 And Over) : The number of people (age 40 and over) is 20,938.
• Rank within US : This county is ranked 1190 of 3146

Muscatine County

• Value (Percent) : The value is 47.5 percent.
• People (Age 40 And Over) : The number of people (age 40 and over) is 20,355.
• Rank within US : This county is ranked 2405 of 3146

Marshall County

• Value (Percent) : The value is 48.6 percent.
• People (Age 40 And Over) : The number of people (age 40 and over) is 19,426.
• Rank within US : This county is ranked 2226 of 3146

Jasper County

• Value (Percent) : The value is 52.2 percent.
• People (Age 40 And Over) : The number of people (age 40 and over) is 19,298.
• Rank within US : This county is ranked 1415 of 3146

Lee County

• Value (Percent) : The value is 53.5 percent.
• People (Age 40 And Over) : The number of people (age 40 and over) is 18,306.
• Rank within US : This county is ranked 1112 of 3146

Webster County

• Value (Percent) : The value is 48.9 percent.
• People (Age 40 And Over) : The number of people (age 40 and over) is 17,879.
• Rank within US : This county is ranked 2163 of 3146

Wapello County

• Value (Percent) : The value is 49.3 percent.
• People (Age 40 And Over) : The number of people (age 40 and over) is 17,334.
• Rank within US : This county is ranked 2078 of 3146

Marion County

• Value (Percent) : The value is 49.1 percent.
• People (Age 40 And Over) : The number of people (age 40 and over) is 16,297.
• Rank within US : This county is ranked 2121 of 3146

Sioux County

• Value (Percent) : The value is 41.7 percent.
• People (Age 40 And Over) : The number of people (age 40 and over) is 14,528.
• Rank within US : This county is ranked 2925 of 3146

Boone County

• Value (Percent) : The value is 52.4 percent.
• People (Age 40 And Over) : The number of people (age 40 and over) is 13,810.
• Rank within US : This county is ranked 1384 of 3146

Benton County

• Value (Percent) : The value is 52.7 percent.
• People (Age 40 And Over) : The number of people (age 40 and over) is 13,501.
• Rank within US : This county is ranked 1309 of 3146

Plymouth County

• Value (Percent) : The value is 50.0 percent.
• People (Age 40 And Over) : The number of people (age 40 and over) is 12,541.
• Rank within US : This county is ranked 1945 of 3146

Bremer County

• Value (Percent) : The value is 49.8 percent.
• People (Age 40 And Over) : The number of people (age 40 and over) is 12,389.
• Rank within US : This county is ranked 1983 of 3146

Washington County

• Value (Percent) : The value is 50.5 percent.
• People (Age 40 And Over) : The number of people (age 40 and over) is 11,170.
• Rank within US : This county is ranked 1830 of 3146

Jones County

• Value (Percent) : The value is 53.6 percent.
• People (Age 40 And Over) : The number of people (age 40 and over) is 11,020.
• Rank within US : This county is ranked 1075 of 3146

Mahaska County

• Value (Percent) : The value is 49.4 percent.
• People (Age 40 And Over) : The number of people (age 40 and over) is 10,939.
• Rank within US : This county is ranked 2069 of 3146

Carroll County

• Value (Percent) : The value is 52.5 percent.
• People (Age 40 And Over) : The number of people (age 40 and over) is 10,653.
• Rank within US : This county is ranked 1342 of 3146

Fayette County

• Value (Percent) : The value is 53.4 percent.
• People (Age 40 And Over) : The number of people (age 40 and over) is 10,582.
• Rank within US : This county is ranked 1119 of 3146

Jackson County

• Value (Percent) : The value is 54.1 percent.
• People (Age 40 And Over) : The number of people (age 40 and over) is 10,495.
• Rank within US : This county is ranked 967 of 3146

Winneshiek County

• Value (Percent) : The value is 51.8 percent.
• People (Age 40 And Over) : The number of people (age 40 and over) is 10,491.
• Rank within US : This county is ranked 1512 of 3146

Buchanan County

• Value (Percent) : The value is 49.1 percent.
• People (Age 40 And Over) : The number of people (age 40 and over) is 10,372.
• Rank within US : This county is ranked 2125 of 3146

Clayton County

• Value (Percent) : The value is 56.7 percent.
• People (Age 40 And Over) : The number of people (age 40 and over) is 9,993.
• Rank within US : This county is ranked 534 of 3146

Jefferson County

• Value (Percent) : The value is 55.0 percent.
• People (Age 40 And Over) : The number of people (age 40 and over) is 9,980.
• Rank within US : This county is ranked 795 of 3146

Dickinson County

• Value (Percent) : The value is 58.3 percent.
• People (Age 40 And Over) : The number of people (age 40 and over) is 9,977.
• Rank within US : This county is ranked 378 of 3146

Cedar County

• Value (Percent) : The value is 53.9 percent.
• People (Age 40 And Over) : The number of people (age 40 and over) is 9,950.
• Rank within US : This county is ranked 1010 of 3146

Henry County

• Value (Percent) : The value is 49.6 percent.
• People (Age 40 And Over) : The number of people (age 40 and over) is 9,890.
• Rank within US : This county is ranked 2030 of 3146

Hardin County

• Value (Percent) : The value is 55.0 percent.
• People (Age 40 And Over) : The number of people (age 40 and over) is 9,383.
• Rank within US : This county is ranked 793 of 3146

Poweshiek County

• Value (Percent) : The value is 50.8 percent.
• People (Age 40 And Over) : The number of people (age 40 and over) is 9,348.
• Rank within US : This county is ranked 1761 of 3146

Delaware County

• Value (Percent) : The value is 53.9 percent.
• People (Age 40 And Over) : The number of people (age 40 and over) is 9,269.
• Rank within US : This county is ranked 1000 of 3146

Tama County

• Value (Percent) : The value is 53.0 percent.
• People (Age 40 And Over) : The number of people (age 40 and over) is 9,031.
• Rank within US : This county is ranked 1217 of 3146

Buena Vista County

• Value (Percent) : The value is 43.7 percent.
• People (Age 40 And Over) : The number of people (age 40 and over) is 8,756.
• Rank within US : This county is ranked 2808 of 3146

Clay County

• Value (Percent) : The value is 53.6 percent.
• People (Age 40 And Over) : The number of people (age 40 and over) is 8,686.
• Rank within US : This county is ranked 1084 of 3146

Iowa County

• Value (Percent) : The value is 52.8 percent.
• People (Age 40 And Over) : The number of people (age 40 and over) is 8,549.
• Rank within US : This county is ranked 1266 of 3146

Floyd County

• Value (Percent) : The value is 53.7 percent.
• People (Age 40 And Over) : The number of people (age 40 and over) is 8,481.
• Rank within US : This county is ranked 1050 of 3146

Page County

• Value (Percent) : The value is 54.3 percent.
• People (Age 40 And Over) : The number of people (age 40 and over) is 8,283.
• Rank within US : This county is ranked 933 of 3146

Crawford County

• Value (Percent) : The value is 48.5 percent.
• People (Age 40 And Over) : The number of people (age 40 and over) is 8,256.
• Rank within US : This county is ranked 2246 of 3146

Kossuth County

• Value (Percent) : The value is 54.9 percent.
• People (Age 40 And Over) : The number of people (age 40 and over) is 8,218.
• Rank within US : This county is ranked 819 of 3146

Madison County

• Value (Percent) : The value is 50.8 percent.
• People (Age 40 And Over) : The number of people (age 40 and over) is 8,136.
• Rank within US : This county is ranked 1774 of 3146

Hamilton County

• Value (Percent) : The value is 53.6 percent.
• People (Age 40 And Over) : The number of people (age 40 and over) is 8,041.
• Rank within US : This county is ranked 1067 of 3146

Butler County

• Value (Percent) : The value is 55.0 percent.
• People (Age 40 And Over) : The number of people (age 40 and over) is 8,040.
• Rank within US : This county is ranked 802 of 3146

Mills County

• Value (Percent) : The value is 52.5 percent.
• People (Age 40 And Over) : The number of people (age 40 and over) is 7,894.
• Rank within US : This county is ranked 1347 of 3146

Harrison County

• Value (Percent) : The value is 54.3 percent.
• People (Age 40 And Over) : The number of people (age 40 and over) is 7,655.
• Rank within US : This county is ranked 915 of 3146

Allamakee County

• Value (Percent) : The value is 54.5 percent.
• People (Age 40 And Over) : The number of people (age 40 and over) is 7,527.
• Rank within US : This county is ranked 879 of 3146

O'Brien County

• Value (Percent) : The value is 53.5 percent.
• People (Age 40 And Over) : The number of people (age 40 and over) is 7,408.
• Rank within US : This county is ranked 1089 of 3146

Cass County

• Value (Percent) : The value is 56.1 percent.
• People (Age 40 And Over) : The number of people (age 40 and over) is 7,348.
• Rank within US : This county is ranked 610 of 3146

Appanoose County

• Value (Percent) : The value is 55.1 percent.
• People (Age 40 And Over) : The number of people (age 40 and over) is 6,864.
• Rank within US : This county is ranked 777 of 3146

Wright County

• Value (Percent) : The value is 52.8 percent.
• People (Age 40 And Over) : The number of people (age 40 and over) is 6,721.
• Rank within US : This county is ranked 1274 of 3146

Chickasaw County

• Value (Percent) : The value is 55.0 percent.
• People (Age 40 And Over) : The number of people (age 40 and over) is 6,613.
• Rank within US : This county is ranked 797 of 3146

Grundy County

• Value (Percent) : The value is 53.5 percent.
• People (Age 40 And Over) : The number of people (age 40 and over) is 6,579.
• Rank within US : This county is ranked 1109 of 3146

Shelby County

• Value (Percent) : The value is 55.6 percent.
• People (Age 40 And Over) : The number of people (age 40 and over) is 6,453.
• Rank within US : This county is ranked 685 of 3146

Cherokee County

• Value (Percent) : The value is 55.8 percent.
• People (Age 40 And Over) : The number of people (age 40 and over) is 6,330.
• Rank within US : This county is ranked 658 of 3146

Union County

• Value (Percent) : The value is 50.3 percent.
• People (Age 40 And Over) : The number of people (age 40 and over) is 6,211.
• Rank within US : This county is ranked 1903 of 3146

Guthrie County

• Value (Percent) : The value is 55.6 percent.
• People (Age 40 And Over) : The number of people (age 40 and over) is 5,936.
• Rank within US : This county is ranked 679 of 3146

Hancock County

• Value (Percent) : The value is 54.7 percent.
• People (Age 40 And Over) : The number of people (age 40 and over) is 5,910.
• Rank within US : This county is ranked 848 of 3146

Louisa County

• Value (Percent) : The value is 52.2 percent.
• People (Age 40 And Over) : The number of people (age 40 and over) is 5,831.
• Rank within US : This county is ranked 1420 of 3146

Mitchell County

• Value (Percent) : The value is 54.3 percent.
• People (Age 40 And Over) : The number of people (age 40 and over) is 5,759.
• Rank within US : This county is ranked 924 of 3146

Lyon County

• Value (Percent) : The value is 47.5 percent.
• People (Age 40 And Over) : The number of people (age 40 and over) is 5,589.
• Rank within US : This county is ranked 2404 of 3146

Montgomery County

• Value (Percent) : The value is 55.5 percent.
• People (Age 40 And Over) : The number of people (age 40 and over) is 5,577.
• Rank within US : This county is ranked 707 of 3146

Sac County

• Value (Percent) : The value is 56.6 percent.
• People (Age 40 And Over) : The number of people (age 40 and over) is 5,549.
• Rank within US : This county is ranked 544 of 3146

Keokuk County

• Value (Percent) : The value is 54.2 percent.
• People (Age 40 And Over) : The number of people (age 40 and over) is 5,525.
• Rank within US : This county is ranked 938 of 3146

Winnebago County

• Value (Percent) : The value is 52.0 percent.
• People (Age 40 And Over) : The number of people (age 40 and over) is 5,475.
• Rank within US : This county is ranked 1467 of 3146

Franklin County

• Value (Percent) : The value is 53.2 percent.
• People (Age 40 And Over) : The number of people (age 40 and over) is 5,405.
• Rank within US : This county is ranked 1179 of 3146

Calhoun County

• Value (Percent) : The value is 54.4 percent.
• People (Age 40 And Over) : The number of people (age 40 and over) is 5,304.
• Rank within US : This county is ranked 894 of 3146

Emmet County

• Value (Percent) : The value is 53.3 percent.
• People (Age 40 And Over) : The number of people (age 40 and over) is 5,033.
• Rank within US : This county is ranked 1140 of 3146

Humboldt County

• Value (Percent) : The value is 52.6 percent.
• People (Age 40 And Over) : The number of people (age 40 and over) is 5,021.
• Rank within US : This county is ranked 1334 of 3146

Greene County

• Value (Percent) : The value is 55.0 percent.
• People (Age 40 And Over) : The number of people (age 40 and over) is 4,922.
• Rank within US : This county is ranked 794 of 3146

Monona County

• Value (Percent) : The value is 56.3 percent.
• People (Age 40 And Over) : The number of people (age 40 and over) is 4,914.
• Rank within US : This county is ranked 587 of 3146

Howard County

• Value (Percent) : The value is 51.6 percent.
• People (Age 40 And Over) : The number of people (age 40 and over) is 4,759.
• Rank within US : This county is ranked 1566 of 3146

Clarke County

• Value (Percent) : The value is 50.4 percent.
• People (Age 40 And Over) : The number of people (age 40 and over) is 4,713.
• Rank within US : This county is ranked 1879 of 3146

Lucas County

• Value (Percent) : The value is 54.6 percent.
• People (Age 40 And Over) : The number of people (age 40 and over) is 4,688.
• Rank within US : This county is ranked 861 of 3146

Palo Alto County

• Value (Percent) : The value is 51.4 percent.
• People (Age 40 And Over) : The number of people (age 40 and over) is 4,627.
• Rank within US : This county is ranked 1614 of 3146

Monroe County

• Value (Percent) : The value is 54.0 percent.
• People (Age 40 And Over) : The number of people (age 40 and over) is 4,217.
• Rank within US : This county is ranked 987 of 3146

Davis County

• Value (Percent) : The value is 45.9 percent.
• People (Age 40 And Over) : The number of people (age 40 and over) is 4,092.
• Rank within US : This county is ranked 2596 of 3146

Worth County

• Value (Percent) : The value is 54.6 percent.
• People (Age 40 And Over) : The number of people (age 40 and over) is 4,067.
• Rank within US : This county is ranked 857 of 3146

Van Buren County

• Value (Percent) : The value is 55.7 percent.
• People (Age 40 And Over) : The number of people (age 40 and over) is 3,981.
• Rank within US : This county is ranked 676 of 3146

Fremont County

• Value (Percent) : The value is 57.1 percent.
• People (Age 40 And Over) : The number of people (age 40 and over) is 3,963.
• Rank within US : This county is ranked 506 of 3146

Pocahontas County

• Value (Percent) : The value is 57.8 percent.
• People (Age 40 And Over) : The number of people (age 40 and over) is 3,927.
• Rank within US : This county is ranked 428 of 3146

Adair County

• Value (Percent) : The value is 55.4 percent.
• People (Age 40 And Over) : The number of people (age 40 and over) is 3,923.
• Rank within US : This county is ranked 723 of 3146

Ida County

• Value (Percent) : The value is 53.8 percent.
• People (Age 40 And Over) : The number of people (age 40 and over) is 3,715.
• Rank within US : This county is ranked 1023 of 3146

Decatur County

• Value (Percent) : The value is 46.2 percent.
• People (Age 40 And Over) : The number of people (age 40 and over) is 3,683.
• Rank within US : This county is ranked 2568 of 3146

Wayne County

• Value (Percent) : The value is 52.7 percent.
• People (Age 40 And Over) : The number of people (age 40 and over) is 3,386.
• Rank within US : This county is ranked 1306 of 3146

Osceola County

• Value (Percent) : The value is 53.8 percent.
• People (Age 40 And Over) : The number of people (age 40 and over) is 3,256.
• Rank within US : This county is ranked 1030 of 3146

Taylor County

• Value (Percent) : The value is 52.4 percent.
• People (Age 40 And Over) : The number of people (age 40 and over) is 3,231.
• Rank within US : This county is ranked 1378 of 3146

Audubon County

• Value (Percent) : The value is 57.4 percent.
• People (Age 40 And Over) : The number of people (age 40 and over) is 3,200.
• Rank within US : This county is ranked 467 of 3146

Ringgold County

• Value (Percent) : The value is 54.0 percent.
• People (Age 40 And Over) : The number of people (age 40 and over) is 2,681.
• Rank within US : This county is ranked 989 of 3146

Adams County

• Value (Percent) : The value is 56.5 percent.
• People (Age 40 And Over) : The number of people (age 40 and over) is 2,072.
• Rank within US : This county is ranked 567 of 3146

Notes:
Created by statecancerprofiles.cancer.gov on 01/30/2023 3:30 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.
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.