RANKING · 2020 CENSUS · 99 SHOWN OF 99

Highest Medicaid coverage, Iowa counties · 2020

Iowa counties ranked by the share of people covered by Medicaid or other means-tested public insurance, alone or in combination with other coverage (2020 ACS). This list covers the 99 counties in Iowa that qualify, ranked against each other statewide. The median across all 99 is 19.9%.

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

RANKPLACESTATEPOPMEDICAIDVS –

01Wayne County, IAIA6,73827.7%–

02Appanoose County, IAIA12,07727.4%–

03Clarke County, IAIA9,57426.6%–

04Decatur County, IAIA7,65526.5%–

05Woodbury County, IAIA106,64926.5%–

06Wapello County, IAIA35,21026.2%–

07Lucas County, IAIA8,84725.7%–

08Des Moines County, IAIA38,07724.9%–

09Sac County, IAIA9,52524.4%–

10Lee County, IAIA32,30624.3%–

11Pocahontas County, IAIA6,81923.8%–

12Clinton County, IAIA46,00223.7%–

13Marshall County, IAIA39,89023.4%–

14Van Buren County, IAIA7,13123.4%–

15Jefferson County, IAIA15,29123.3%–

16Webster County, IAIA36,83823.3%–

17Keokuk County, IAIA9,79723.2%–

18Montgomery County, IAIA10,00223.0%–

19Henry County, IAIA19,34923.0%–

20Union County, IAIA11,82922.8%–

21Adair County, IAIA7,40322.8%–

22Ringgold County, IAIA4,64222.7%–

23Fayette County, IAIA19,04722.7%–

24Pottawattamie County, IAIA92,99622.6%–

25Audubon County, IAIA5,50922.6%–

26Page County, IAIA14,85622.1%–

27Monona County, IAIA8,53922.0%–

28Crawford County, IAIA16,23721.7%–

29Monroe County, IAIA7,40621.6%–

30Mahaska County, IAIA21,88021.5%–

31Washington County, IAIA22,66721.5%–

32Cass County, IAIA12,96021.5%–

33Tama County, IAIA16,79621.4%–

34Black Hawk County, IAIA131,53221.2%–

35Buena Vista County, IAIA20,44921.2%–

36Howard County, IAIA9,41521.2%–

37Humboldt County, IAIA9,40921.2%–

38Jones County, IAIA21,25321.2%–

39Greene County, IAIA8,65821.1%–

40Clayton County, IAIA16,84521.1%–

41Muscatine County, IAIA41,85320.8%–

42Polk County, IAIA516,54620.7%–

43Floyd County, IAIA14,90120.7%–

44Kossuth County, IAIA14,32220.6%–

45Calhoun County, IAIA9,56220.5%–

46Fremont County, IAIA6,52220.5%–

47Mitchell County, IAIA10,65020.4%–

48Wright County, IAIA12,80120.1%–

49Ida County, IAIA6,77720.0%–

50Allamakee County, IAIA14,23819.9%–

51Clay County, IAIA16,20219.9%–

52Cerro Gordo County, IAIA42,37219.8%–

53Osceola County, IAIA5,98019.7%–

54Carroll County, IAIA20,30319.7%–

55Scott County, IAIA175,25919.6%–

56Jasper County, IAIA38,15319.6%–

57Jackson County, IAIA19,28819.4%–

58O'Brien County, IAIA14,22019.2%–

59Emmet County, IAIA9,10719.1%–

60Adams County, IAIA3,61719.0%–

61Shelby County, IAIA11,68919.0%–

62Hardin County, IAIA16,45518.9%–

63Davis County, IAIA9,23018.4%–

64Mills County, IAIA14,79318.3%–

65Palo Alto County, IAIA8,89918.1%–

66Louisa County, IAIA10,41617.5%–

67Hamilton County, IAIA14,94417.4%–

68Hancock County, IAIA10,52817.4%–

69Linn County, IAIA232,02817.3%–

70Marion County, IAIA34,19217.3%–

71Worth County, IAIA7,33817.3%–

72Taylor County, IAIA5,83517.2%–

73Lyon County, IAIA12,35417.2%–

74Guthrie County, IAIA10,78217.2%–

75Butler County, IAIA14,04916.8%–

76Dubuque County, IAIA99,38116.6%–

77Harrison County, IAIA14,62316.5%–

78Boone County, IAIA26,79916.4%–

79Winnebago County, IAIA10,25116.4%–

80Buchanan County, IAIA20,88316.3%–

81Franklin County, IAIA9,86816.2%–

82Cherokee County, IAIA11,36916.1%–

83Benton County, IAIA26,00415.6%–

84Sioux County, IAIA36,77415.1%–

85Iowa County, IAIA16,50415.1%–

86Plymouth County, IAIA25,69715.0%–

87Chickasaw County, IAIA11,66314.9%–

88Cedar County, IAIA18,35914.8%–

89Warren County, IAIA57,33114.5%–

90Delaware County, IAIA17,67414.3%–

91Dickinson County, IAIA18,07714.1%–

92Bremer County, IAIA25,29613.8%–

93Poweshiek County, IAIA18,36813.4%–

94Winneshiek County, IAIA19,73313.4%–

95Johnson County, IAIA160,04412.8%–

96Madison County, IAIA17,27011.8%–

97Grundy County, IAIA12,36110.8%–

98Dallas County, IAIA118,45710.6%–

99Story County, IAIA101,2919.4%–

SHOWING 1–99 OF 99

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UPDATED 2026-09-11 · DATA: US CENSUS BUREAU DECENNIAL CENSUS