RANKING · 2020 CENSUS · 99 SHOWN OF 99

Most six-figure households, Iowa counties · 2020

Iowa counties with the most households earning $100,000 or more, as of the 2020 American Community Survey. Ranked by number of households, not the share. This list covers the 99 counties in Iowa that qualify, ranked against each other statewide.

IowaAll states All rankings

SAME RANKING BYCities States Metros

YEAR2020 2024

RANKPLACESTATEPOPSIX-FIGURE HOUSEHOLDSVS –

01Polk County, IAIA516,54688,275–

02Linn County, IAIA232,02841,087–

03Scott County, IAIA175,25928,752–

04Johnson County, IAIA160,04425,922–

05Dallas County, IAIA118,45720,485–

06Black Hawk County, IAIA131,53218,885–

07Dubuque County, IAIA99,38116,780–

08Woodbury County, IAIA106,64916,007–

09Story County, IAIA101,29114,610–

10Pottawattamie County, IAIA92,99614,257–

11Warren County, IAIA57,33110,394–

12Cerro Gordo County, IAIA42,3726,952–

13Muscatine County, IAIA41,8536,721–

14Clinton County, IAIA46,0026,395–

15Sioux County, IAIA36,7746,019–

16Marion County, IAIA34,1925,746–

17Marshall County, IAIA39,8905,690–

18Des Moines County, IAIA38,0775,548–

19Jasper County, IAIA38,1535,473–

20Plymouth County, IAIA25,6974,892–

21Webster County, IAIA36,8384,828–

22Boone County, IAIA26,7994,779–

23Bremer County, IAIA25,2964,681–

24Benton County, IAIA26,0044,523–

25Lee County, IAIA32,3064,355–

26Wapello County, IAIA35,2103,965–

27Washington County, IAIA22,6673,622–

28Buchanan County, IAIA20,8833,609–

29Carroll County, IAIA20,3033,529–

30Dickinson County, IAIA18,0773,469–

31Cedar County, IAIA18,3593,373–

32Winneshiek County, IAIA19,7333,314–

33Jones County, IAIA21,2533,263–

34Mahaska County, IAIA21,8803,261–

35Jackson County, IAIA19,2883,188–

36Madison County, IAIA17,2703,174–

37Poweshiek County, IAIA18,3682,904–

38Iowa County, IAIA16,5042,773–

39Mills County, IAIA14,7932,728–

40Delaware County, IAIA17,6742,692–

41Clayton County, IAIA16,8452,660–

42Henry County, IAIA19,3492,647–

43Buena Vista County, IAIA20,4492,534–

44Harrison County, IAIA14,6232,530–

45Clay County, IAIA16,2022,491–

46Fayette County, IAIA19,0472,467–

47Grundy County, IAIA12,3612,461–

48Hardin County, IAIA16,4552,398–

49Tama County, IAIA16,7962,372–

50Crawford County, IAIA16,2372,337–

51Floyd County, IAIA14,9012,318–

52O'Brien County, IAIA14,2202,305–

53Kossuth County, IAIA14,3222,303–

54Hamilton County, IAIA14,9442,266–

55Butler County, IAIA14,0492,255–

56Shelby County, IAIA11,6892,075–

57Allamakee County, IAIA14,2382,039–

58Jefferson County, IAIA15,2911,999–

59Chickasaw County, IAIA11,6631,959–

60Cherokee County, IAIA11,3691,957–

61Hancock County, IAIA10,5281,928–

62Cass County, IAIA12,9601,924–

63Lyon County, IAIA12,3541,911–

64Page County, IAIA14,8561,902–

65Guthrie County, IAIA10,7821,851–

66Louisa County, IAIA10,4161,735–

67Union County, IAIA11,8291,705–

68Mitchell County, IAIA10,6501,668–

69Wright County, IAIA12,8011,611–

70Winnebago County, IAIA10,2511,588–

71Sac County, IAIA9,5251,554–

72Montgomery County, IAIA10,0021,543–

73Calhoun County, IAIA9,5621,486–

74Humboldt County, IAIA9,4091,471–

75Davis County, IAIA9,2301,469–

76Keokuk County, IAIA9,7971,436–

77Palo Alto County, IAIA8,8991,374–

78Clarke County, IAIA9,5741,350–

79Franklin County, IAIA9,8681,344–

80Worth County, IAIA7,3381,327–

81Greene County, IAIA8,6581,316–

82Emmet County, IAIA9,1071,308–

83Monroe County, IAIA7,4061,300–

84Lucas County, IAIA8,8471,298–

85Monona County, IAIA8,5391,288–

86Howard County, IAIA9,4151,252–

87Appanoose County, IAIA12,0771,244–

88Adair County, IAIA7,4031,182–

89Ida County, IAIA6,7771,090–

90Fremont County, IAIA6,5221,079–

91Pocahontas County, IAIA6,8191,052–

92Taylor County, IAIA5,835947–

93Osceola County, IAIA5,980886–

94Van Buren County, IAIA7,131857–

95Decatur County, IAIA7,655789–

96Audubon County, IAIA5,509730–

97Ringgold County, IAIA4,642680–

98Wayne County, IAIA6,738673–

99Adams County, IAIA3,617478–

SHOWING 1–99 OF 99

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