RANKING · 1990 CENSUS · 99 SHOWN OF 99

Lowest median household income, Iowa counties · 1990

Iowa counties with the lowest median household income in the 1990 American Community Survey 5-year estimates. 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

YEAR1990 2000 2010 2020 2024

RANKPLACESTATEPOPMEDIAN HOUSEHOLD INCOMEVS –

01Wayne County, IAIA6,738$17,599–

02Appanoose County, IAIA12,077$17,833–

03Decatur County, IAIA7,655$18,105–

04Taylor County, IAIA5,835$18,641–

05Van Buren County, IAIA7,131$19,244–

06Davis County, IAIA9,230$20,054–

07Adams County, IAIA3,617$20,570–

08Monona County, IAIA8,539$20,714–

09Monroe County, IAIA7,406$20,745–

10Ringgold County, IAIA4,642$20,761–

11Wapello County, IAIA35,210$21,060–

12Allamakee County, IAIA14,238$21,098–

13Fayette County, IAIA19,047$21,109–

14Palo Alto County, IAIA8,899$21,223–

15Lucas County, IAIA8,847$21,316–

16Clayton County, IAIA16,845$21,406–

17Adair County, IAIA7,403$21,426–

18Audubon County, IAIA5,509$21,501–

19Union County, IAIA11,829$21,550–

20Clarke County, IAIA9,574$21,735–

21Cass County, IAIA12,960$21,801–

22Sac County, IAIA9,525$21,818–

23Howard County, IAIA9,415$21,913–

24Page County, IAIA14,856$22,050–

25Crawford County, IAIA16,237$22,209–

26Keokuk County, IAIA9,797$22,234–

27Harrison County, IAIA14,623$22,258–

28Greene County, IAIA8,658$22,320–

29Jackson County, IAIA19,288$22,487–

30Calhoun County, IAIA9,562$22,496–

31Jefferson County, IAIA15,291$22,630–

32Lyon County, IAIA12,354$22,676–

33Shelby County, IAIA11,689$22,702–

34Emmet County, IAIA9,107$22,790–

35Ida County, IAIA6,777$22,859–

36Worth County, IAIA7,338$22,902–

37Fremont County, IAIA6,522$22,948–

38Cherokee County, IAIA11,369$22,967–

39Osceola County, IAIA5,980$23,037–

40Mahaska County, IAIA21,880$23,115–

41O'Brien County, IAIA14,220$23,125–

42Butler County, IAIA14,049$23,292–

43Montgomery County, IAIA10,002$23,312–

44Kossuth County, IAIA14,322$23,321–

45Floyd County, IAIA14,901$23,344–

46Guthrie County, IAIA10,782$23,356–

47Buchanan County, IAIA20,883$23,386–

48Hardin County, IAIA16,455$23,457–

49Winnebago County, IAIA10,251$23,480–

50Pocahontas County, IAIA6,819$23,517–

51Webster County, IAIA36,838$23,692–

52Franklin County, IAIA9,868$23,741–

53Tama County, IAIA16,796$24,297–

54Winneshiek County, IAIA19,733$24,383–

55Carroll County, IAIA20,303$24,391–

56Jones County, IAIA21,253$24,480–

57Mitchell County, IAIA10,650$24,519–

58Humboldt County, IAIA9,409$24,557–

59Wright County, IAIA12,801$24,582–

60Chickasaw County, IAIA11,663$24,656–

61Lee County, IAIA32,306$24,671–

62Henry County, IAIA19,349$24,952–

63Clay County, IAIA16,202$25,028–

64Cerro Gordo County, IAIA42,372$25,116–

65Woodbury County, IAIA106,649$25,186–

66Dickinson County, IAIA18,077$25,211–

67Buena Vista County, IAIA20,449$25,311–

68Clinton County, IAIA46,002$25,410–

69Hancock County, IAIA10,528$25,445–

70Louisa County, IAIA10,416$25,590–

71Black Hawk County, IAIA131,532$25,683–

72Sioux County, IAIA36,774$25,692–

73Delaware County, IAIA17,674$25,757–

74Washington County, IAIA22,667$25,822–

75Hamilton County, IAIA14,944$25,847–

76Benton County, IAIA26,004$25,959–

77Poweshiek County, IAIA18,368$26,063–

78Boone County, IAIA26,799$26,110–

79Grundy County, IAIA12,361$26,314–

80Des Moines County, IAIA38,077$26,536–

81Iowa County, IAIA16,504$26,579–

82Pottawattamie County, IAIA92,996$26,639–

83Madison County, IAIA17,270$26,644–

84Story County, IAIA101,291$26,668–

85Plymouth County, IAIA25,697$26,796–

86Bremer County, IAIA25,296$27,326–

87Mills County, IAIA14,793$27,420–

88Cedar County, IAIA18,359$27,713–

89Johnson County, IAIA160,044$27,862–

90Marion County, IAIA34,192$27,991–

91Dubuque County, IAIA99,381$28,276–

92Marshall County, IAIA39,890$28,333–

93Jasper County, IAIA38,153$28,702–

94Dallas County, IAIA118,457$28,874–

95Muscatine County, IAIA41,853$29,786–

96Scott County, IAIA175,259$29,979–

97Polk County, IAIA516,546$31,221–

98Linn County, IAIA232,028$32,137–

99Warren County, IAIA57,331$32,452–

SHOWING 1–99 OF 99

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