RANKING · 2020 CENSUS · 99 SHOWN OF 99

Highest Medicare coverage, Iowa counties · 2020

Iowa counties ranked by the share of people covered by Medicare, alone or in combination with other coverage (2020 ACS). A close proxy for retirement geography. 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

RANKPLACESTATEPOPMEDICAREVS –

01Dickinson County, IAIA18,07726.9%–

02Monona County, IAIA8,53925.9%–

03Appanoose County, IAIA12,07725.7%–

04Audubon County, IAIA5,50925.4%–

05Kossuth County, IAIA14,32225.2%–

06Page County, IAIA14,85625.1%–

07Clayton County, IAIA16,84525.0%–

08Calhoun County, IAIA9,56224.8%–

09Cherokee County, IAIA11,36924.7%–

10Van Buren County, IAIA7,13124.6%–

11Cass County, IAIA12,96024.5%–

12Shelby County, IAIA11,68924.4%–

13Wright County, IAIA12,80124.4%–

14Greene County, IAIA8,65824.2%–

15Sac County, IAIA9,52524.1%–

16Ringgold County, IAIA4,64223.9%–

17Adams County, IAIA3,61723.8%–

18Taylor County, IAIA5,83523.6%–

19Adair County, IAIA7,40323.6%–

20Butler County, IAIA14,04923.6%–

21Cerro Gordo County, IAIA42,37223.5%–

22Union County, IAIA11,82923.4%–

23Floyd County, IAIA14,90123.3%–

24Fremont County, IAIA6,52223.3%–

25Guthrie County, IAIA10,78223.3%–

26Montgomery County, IAIA10,00223.3%–

27Lee County, IAIA32,30623.2%–

28Des Moines County, IAIA38,07723.0%–

29Jones County, IAIA21,25323.0%–

30Lucas County, IAIA8,84723.0%–

31Allamakee County, IAIA14,23822.9%–

32O'Brien County, IAIA14,22022.9%–

33Fayette County, IAIA19,04722.8%–

34Jefferson County, IAIA15,29122.8%–

35Palo Alto County, IAIA8,89922.8%–

36Pocahontas County, IAIA6,81922.7%–

37Wayne County, IAIA6,73822.7%–

38Humboldt County, IAIA9,40922.6%–

39Keokuk County, IAIA9,79722.6%–

40Clay County, IAIA16,20222.5%–

41Jackson County, IAIA19,28822.3%–

42Hancock County, IAIA10,52822.2%–

43Worth County, IAIA7,33822.2%–

44Osceola County, IAIA5,98021.9%–

45Winnebago County, IAIA10,25121.9%–

46Poweshiek County, IAIA18,36821.8%–

47Emmet County, IAIA9,10721.8%–

48Hamilton County, IAIA14,94421.8%–

49Henry County, IAIA19,34921.8%–

50Mitchell County, IAIA10,65021.7%–

51Franklin County, IAIA9,86821.6%–

52Chickasaw County, IAIA11,66321.4%–

53Ida County, IAIA6,77721.4%–

54Carroll County, IAIA20,30321.3%–

55Clinton County, IAIA46,00221.3%–

56Grundy County, IAIA12,36121.3%–

57Jasper County, IAIA38,15321.3%–

58Decatur County, IAIA7,65521.0%–

59Mills County, IAIA14,79321.0%–

60Clarke County, IAIA9,57420.9%–

61Hardin County, IAIA16,45520.9%–

62Webster County, IAIA36,83820.8%–

63Cedar County, IAIA18,35920.7%–

64Winneshiek County, IAIA19,73320.7%–

65Tama County, IAIA16,79620.5%–

66Wapello County, IAIA35,21020.3%–

67Bremer County, IAIA25,29620.2%–

68Howard County, IAIA9,41520.1%–

69Iowa County, IAIA16,50419.8%–

70Mahaska County, IAIA21,88019.6%–

71Monroe County, IAIA7,40619.6%–

72Pottawattamie County, IAIA92,99619.5%–

73Benton County, IAIA26,00419.4%–

74Delaware County, IAIA17,67419.4%–

75Harrison County, IAIA14,62319.4%–

76Dubuque County, IAIA99,38119.3%–

77Washington County, IAIA22,66719.3%–

78Louisa County, IAIA10,41619.1%–

79Lyon County, IAIA12,35419.1%–

80Buchanan County, IAIA20,88319.0%–

81Boone County, IAIA26,79918.9%–

82Marion County, IAIA34,19218.9%–

83Plymouth County, IAIA25,69718.8%–

84Black Hawk County, IAIA131,53218.4%–

85Marshall County, IAIA39,89018.3%–

86Madison County, IAIA17,27017.9%–

87Crawford County, IAIA16,23717.7%–

88Davis County, IAIA9,23017.6%–

89Scott County, IAIA175,25917.6%–

90Muscatine County, IAIA41,85317.4%–

91Linn County, IAIA232,02816.8%–

92Woodbury County, IAIA106,64916.6%–

93Warren County, IAIA57,33116.2%–

94Buena Vista County, IAIA20,44915.7%–

95Sioux County, IAIA36,77415.7%–

96Polk County, IAIA516,54614.3%–

97Story County, IAIA101,29112.4%–

98Dallas County, IAIA118,45712.3%–

99Johnson County, IAIA160,04412.1%–

SHOWING 1–99 OF 99

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UPDATED 2026-08-08 · DATA: US CENSUS BUREAU DECENNIAL CENSUS