RANKING · 1990 CENSUS · 99 SHOWN OF 99

Highest median household income, Iowa counties · 1990

Iowa counties ranked by median household income from the 1990 American Community Survey 5-year estimates. This list covers the 99 counties in Iowa that qualify, ranked against each other statewide. The median across all 99 is $23,517.

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SAME RANKING BYCities States Metros ZIP codes

YEAR1990 2000 2010 2020 2024

RANKPLACESTATEPOPMEDIAN HOUSEHOLD INCOMEVS –

01Warren County, IAIA57,331$32,452–

02Linn County, IAIA232,028$32,137–

03Polk County, IAIA516,546$31,221–

04Scott County, IAIA175,259$29,979–

05Muscatine County, IAIA41,853$29,786–

06Dallas County, IAIA118,457$28,874–

07Jasper County, IAIA38,153$28,702–

08Marshall County, IAIA39,890$28,333–

09Dubuque County, IAIA99,381$28,276–

10Marion County, IAIA34,192$27,991–

11Johnson County, IAIA160,044$27,862–

12Cedar County, IAIA18,359$27,713–

13Mills County, IAIA14,793$27,420–

14Bremer County, IAIA25,296$27,326–

15Plymouth County, IAIA25,697$26,796–

16Story County, IAIA101,291$26,668–

17Madison County, IAIA17,270$26,644–

18Pottawattamie County, IAIA92,996$26,639–

19Iowa County, IAIA16,504$26,579–

20Des Moines County, IAIA38,077$26,536–

21Grundy County, IAIA12,361$26,314–

22Boone County, IAIA26,799$26,110–

23Poweshiek County, IAIA18,368$26,063–

24Benton County, IAIA26,004$25,959–

25Hamilton County, IAIA14,944$25,847–

26Washington County, IAIA22,667$25,822–

27Delaware County, IAIA17,674$25,757–

28Sioux County, IAIA36,774$25,692–

29Black Hawk County, IAIA131,532$25,683–

30Louisa County, IAIA10,416$25,590–

31Hancock County, IAIA10,528$25,445–

32Clinton County, IAIA46,002$25,410–

33Buena Vista County, IAIA20,449$25,311–

34Dickinson County, IAIA18,077$25,211–

35Woodbury County, IAIA106,649$25,186–

36Cerro Gordo County, IAIA42,372$25,116–

37Clay County, IAIA16,202$25,028–

38Henry County, IAIA19,349$24,952–

39Lee County, IAIA32,306$24,671–

40Chickasaw County, IAIA11,663$24,656–

41Wright County, IAIA12,801$24,582–

42Humboldt County, IAIA9,409$24,557–

43Mitchell County, IAIA10,650$24,519–

44Jones County, IAIA21,253$24,480–

45Carroll County, IAIA20,303$24,391–

46Winneshiek County, IAIA19,733$24,383–

47Tama County, IAIA16,796$24,297–

48Franklin County, IAIA9,868$23,741–

49Webster County, IAIA36,838$23,692–

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

51Winnebago County, IAIA10,251$23,480–

52Hardin County, IAIA16,455$23,457–

53Buchanan County, IAIA20,883$23,386–

54Guthrie County, IAIA10,782$23,356–

55Floyd County, IAIA14,901$23,344–

56Kossuth County, IAIA14,322$23,321–

57Montgomery County, IAIA10,002$23,312–

58Butler County, IAIA14,049$23,292–

59O'Brien County, IAIA14,220$23,125–

60Mahaska County, IAIA21,880$23,115–

61Osceola County, IAIA5,980$23,037–

62Cherokee County, IAIA11,369$22,967–

63Fremont County, IAIA6,522$22,948–

64Worth County, IAIA7,338$22,902–

65Ida County, IAIA6,777$22,859–

66Emmet County, IAIA9,107$22,790–

67Shelby County, IAIA11,689$22,702–

68Lyon County, IAIA12,354$22,676–

69Jefferson County, IAIA15,291$22,630–

70Calhoun County, IAIA9,562$22,496–

71Jackson County, IAIA19,288$22,487–

72Greene County, IAIA8,658$22,320–

73Harrison County, IAIA14,623$22,258–

74Keokuk County, IAIA9,797$22,234–

75Crawford County, IAIA16,237$22,209–

76Page County, IAIA14,856$22,050–

77Howard County, IAIA9,415$21,913–

78Sac County, IAIA9,525$21,818–

79Cass County, IAIA12,960$21,801–

80Clarke County, IAIA9,574$21,735–

81Union County, IAIA11,829$21,550–

82Audubon County, IAIA5,509$21,501–

83Adair County, IAIA7,403$21,426–

84Clayton County, IAIA16,845$21,406–

85Lucas County, IAIA8,847$21,316–

86Palo Alto County, IAIA8,899$21,223–

87Fayette County, IAIA19,047$21,109–

88Allamakee County, IAIA14,238$21,098–

89Wapello County, IAIA35,210$21,060–

90Ringgold County, IAIA4,642$20,761–

91Monroe County, IAIA7,406$20,745–

92Monona County, IAIA8,539$20,714–

93Adams County, IAIA3,617$20,570–

94Davis County, IAIA9,230$20,054–

95Van Buren County, IAIA7,131$19,244–

96Taylor County, IAIA5,835$18,641–

97Decatur County, IAIA7,655$18,105–

98Appanoose County, IAIA12,077$17,833–

99Wayne County, IAIA6,738$17,599–

SHOWING 1–99 OF 99

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