RANKING · 1990 CENSUS · 99 SHOWN OF 99

Lowest poverty rate, Iowa counties · 1990

Iowa counties with the lowest share of residents below the federal poverty line (1990 ACS). This list covers the 99 counties in Iowa that qualify, ranked against each other statewide.

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SAME RANKING BYCities States Metros ZIP codes

RELATEDHighest median household income Lowest median household income Highest per-capita income Highest poverty rate Most residents in poverty Most six-figure households

YEAR1990 2000 2010 2020 2024

RANKPLACESTATEPOPPOVERTY RATEVS –

01Warren County, IAIA57,3316.3%–

02Jasper County, IAIA38,1537.0%–

03Dallas County, IAIA118,4577.6%–

04Sioux County, IAIA36,7748.1%–

05Iowa County, IAIA16,5048.2%–

06Hamilton County, IAIA14,9448.2%–

07Grundy County, IAIA12,3618.3%–

08Linn County, IAIA232,0288.6%–

09Marshall County, IAIA39,8908.7%–

10Buena Vista County, IAIA20,4498.7%–

11Humboldt County, IAIA9,4098.8%–

12Boone County, IAIA26,7998.8%–

13Hancock County, IAIA10,5288.9%–

14Cerro Gordo County, IAIA42,3728.9%–

15Plymouth County, IAIA25,6979.0%–

16Dickinson County, IAIA18,0779.2%–

17Bremer County, IAIA25,2969.2%–

18Polk County, IAIA516,5469.2%–

19Shelby County, IAIA11,6899.4%–

20Washington County, IAIA22,6679.5%–

21Wright County, IAIA12,8019.7%–

22Osceola County, IAIA5,9809.8%–

23Worth County, IAIA7,3389.9%–

24Clay County, IAIA16,20210.0%–

25Marion County, IAIA34,19210.0%–

26Henry County, IAIA19,34910.1%–

27Muscatine County, IAIA41,85310.1%–

28Montgomery County, IAIA10,00210.1%–

29Mills County, IAIA14,79310.2%–

30Cedar County, IAIA18,35910.2%–

31Dubuque County, IAIA99,38110.3%–

32Mitchell County, IAIA10,65010.3%–

33Poweshiek County, IAIA18,36810.4%–

34Pocahontas County, IAIA6,81910.4%–

35Pottawattamie County, IAIA92,99610.5%–

36Tama County, IAIA16,79610.6%–

37Carroll County, IAIA20,30310.6%–

38Butler County, IAIA14,04910.7%–

39Chickasaw County, IAIA11,66310.7%–

40Clinton County, IAIA46,00210.8%–

41Hardin County, IAIA16,45510.8%–

42Kossuth County, IAIA14,32211.0%–

43Madison County, IAIA17,27011.1%–

44Cherokee County, IAIA11,36911.2%–

45Guthrie County, IAIA10,78211.2%–

46Franklin County, IAIA9,86811.3%–

47Des Moines County, IAIA38,07711.3%–

48Benton County, IAIA26,00411.4%–

49Jones County, IAIA21,25311.5%–

50Cass County, IAIA12,96011.5%–

51Ida County, IAIA6,77711.6%–

52Louisa County, IAIA10,41611.7%–

53Winnebago County, IAIA10,25111.7%–

54Sac County, IAIA9,52511.8%–

55Webster County, IAIA36,83811.8%–

56Calhoun County, IAIA9,56211.9%–

57Audubon County, IAIA5,50912.1%–

58Scott County, IAIA175,25912.1%–

59O'Brien County, IAIA14,22012.1%–

60Fremont County, IAIA6,52212.2%–

61Greene County, IAIA8,65812.2%–

62Delaware County, IAIA17,67412.8%–

63Lee County, IAIA32,30612.9%–

64Emmet County, IAIA9,10713.0%–

65Mahaska County, IAIA21,88013.0%–

66Lucas County, IAIA8,84713.1%–

67Keokuk County, IAIA9,79713.1%–

68Winneshiek County, IAIA19,73313.2%–

69Allamakee County, IAIA14,23813.2%–

70Lyon County, IAIA12,35413.3%–

71Floyd County, IAIA14,90113.3%–

72Woodbury County, IAIA106,64913.4%–

73Adair County, IAIA7,40313.4%–

74Clarke County, IAIA9,57413.7%–

75Harrison County, IAIA14,62313.8%–

76Page County, IAIA14,85613.8%–

77Howard County, IAIA9,41513.8%–

78Jefferson County, IAIA15,29113.9%–

79Fayette County, IAIA19,04714.2%–

80Jackson County, IAIA19,28814.3%–

81Clayton County, IAIA16,84514.4%–

82Monona County, IAIA8,53914.8%–

83Wapello County, IAIA35,21015.3%–

84Palo Alto County, IAIA8,89915.3%–

85Black Hawk County, IAIA131,53215.3%–

86Union County, IAIA11,82915.5%–

87Monroe County, IAIA7,40615.6%–

88Crawford County, IAIA16,23715.9%–

89Story County, IAIA101,29116.5%–

90Buchanan County, IAIA20,88316.7%–

91Adams County, IAIA3,61716.8%–

92Van Buren County, IAIA7,13116.8%–

93Johnson County, IAIA160,04417.1%–

94Ringgold County, IAIA4,64217.2%–

95Davis County, IAIA9,23017.8%–

96Taylor County, IAIA5,83518.3%–

97Wayne County, IAIA6,73819.1%–

98Appanoose County, IAIA12,07720.4%–

99Decatur County, IAIA7,65521.0%–

SHOWING 1–99 OF 99

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