RANKING · 2020 CENSUS · 99 SHOWN OF 99

Highest uninsured rate, Iowa counties · 2020

Iowa counties ranked by the share of residents without health insurance (2020 ACS). This list covers the 99 counties in Iowa that qualify, ranked against each other statewide.

IowaAll states All rankings

SAME RANKING BYCities States Metros ZIP codes

RELATEDLargest foreign-born population Most residents with a disability Largest veteran population Most uninsured people Largest senior population Most unmarried people

YEAR2020 2024

RANKPLACESTATEPOPUNINSUREDVS –

01Davis County, IAIA9,23025.6%–

02Franklin County, IAIA9,86811.4%–

03Van Buren County, IAIA7,13111.3%–

04Appanoose County, IAIA12,0779.5%–

05Wayne County, IAIA6,7389.3%–

06Buena Vista County, IAIA20,4498.7%–

07Crawford County, IAIA16,2378.7%–

08Allamakee County, IAIA14,2388.1%–

09Washington County, IAIA22,6677.4%–

10Clarke County, IAIA9,5747.2%–

11Howard County, IAIA9,4157.1%–

12Wapello County, IAIA35,2107.1%–

13Mitchell County, IAIA10,6506.7%–

14Union County, IAIA11,8296.6%–

15Decatur County, IAIA7,6556.6%–

16Adams County, IAIA3,6176.6%–

17Emmet County, IAIA9,1076.6%–

18Lucas County, IAIA8,8476.6%–

19Ringgold County, IAIA4,6426.6%–

20Taylor County, IAIA5,8356.4%–

21Chickasaw County, IAIA11,6636.3%–

22Tama County, IAIA16,7966.3%–

23Louisa County, IAIA10,4166.2%–

24Floyd County, IAIA14,9016.1%–

25Buchanan County, IAIA20,8836.0%–

26Clayton County, IAIA16,8456.0%–

27Woodbury County, IAIA106,6495.9%–

28Webster County, IAIA36,8385.7%–

29Jefferson County, IAIA15,2915.6%–

30Poweshiek County, IAIA18,3685.5%–

31Ida County, IAIA6,7775.5%–

32Marshall County, IAIA39,8905.5%–

33Pottawattamie County, IAIA92,9965.4%–

34Osceola County, IAIA5,9805.3%–

35Plymouth County, IAIA25,6975.1%–

36Story County, IAIA101,2915.1%–

37Johnson County, IAIA160,0445.0%–

38Lyon County, IAIA12,3545.0%–

39Cherokee County, IAIA11,3694.9%–

40Scott County, IAIA175,2594.9%–

41Clinton County, IAIA46,0024.8%–

42Kossuth County, IAIA14,3224.8%–

43Mahaska County, IAIA21,8804.8%–

44Pocahontas County, IAIA6,8194.8%–

45Shelby County, IAIA11,6894.8%–

46Cass County, IAIA12,9604.7%–

47Clay County, IAIA16,2024.7%–

48Jackson County, IAIA19,2884.7%–

49Adair County, IAIA7,4034.6%–

50Dickinson County, IAIA18,0774.6%–

51Fayette County, IAIA19,0474.6%–

52Humboldt County, IAIA9,4094.6%–

53Monona County, IAIA8,5394.6%–

54Polk County, IAIA516,5464.6%–

55Sac County, IAIA9,5254.6%–

56Black Hawk County, IAIA131,5324.5%–

57Fremont County, IAIA6,5224.5%–

58Lee County, IAIA32,3064.5%–

59Audubon County, IAIA5,5094.3%–

60Cerro Gordo County, IAIA42,3724.3%–

61Des Moines County, IAIA38,0774.1%–

62Page County, IAIA14,8564.1%–

63Sioux County, IAIA36,7744.0%–

64Hardin County, IAIA16,4553.9%–

65Linn County, IAIA232,0283.9%–

66Marion County, IAIA34,1923.9%–

67Wright County, IAIA12,8013.9%–

68Dallas County, IAIA118,4573.8%–

69Muscatine County, IAIA41,8533.8%–

70Worth County, IAIA7,3383.8%–

71Butler County, IAIA14,0493.6%–

72Calhoun County, IAIA9,5623.6%–

73Delaware County, IAIA17,6743.6%–

74Guthrie County, IAIA10,7823.6%–

75Monroe County, IAIA7,4063.6%–

76Palo Alto County, IAIA8,8993.6%–

77Dubuque County, IAIA99,3813.5%–

78Hancock County, IAIA10,5283.5%–

79Harrison County, IAIA14,6233.4%–

80Henry County, IAIA19,3493.4%–

81Keokuk County, IAIA9,7973.4%–

82Bremer County, IAIA25,2963.2%–

83Mills County, IAIA14,7933.2%–

84Montgomery County, IAIA10,0023.2%–

85O'Brien County, IAIA14,2203.2%–

86Boone County, IAIA26,7993.1%–

87Hamilton County, IAIA14,9443.1%–

88Greene County, IAIA8,6583.0%–

89Iowa County, IAIA16,5042.7%–

90Jones County, IAIA21,2532.7%–

91Madison County, IAIA17,2702.6%–

92Winneshiek County, IAIA19,7332.6%–

93Jasper County, IAIA38,1532.5%–

94Winnebago County, IAIA10,2512.5%–

95Benton County, IAIA26,0042.4%–

96Warren County, IAIA57,3312.4%–

97Cedar County, IAIA18,3592.3%–

98Grundy County, IAIA12,3612.2%–

99Carroll County, IAIA20,3032.1%–

SHOWING 1–99 OF 99

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UPDATED 2026-07-15 · DATA: US CENSUS BUREAU DECENNIAL CENSUS