RANKING · 2024 ACS · 99 SHOWN OF 99

Least educated, Iowa counties

Iowa counties with the smallest share of adults 25+ holding a bachelor's degree or higher (2023 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

RELATEDMost educated Most graduate degrees Fewest graduate degrees

YEAR1990 2000 2010 2020 2024

RANKPLACESTATEPOPBACHELOR'S DEGREE OR HIGHERVS 2000

01Clayton County, IAIA16,84514.5%+13%

02Lucas County, IAIA8,84715.8%+42%

03Clarke County, IAIA9,57416.0%+32%

04Taylor County, IAIA5,83516.0%+34%

05Osceola County, IAIA5,98016.7%+25%

06Louisa County, IAIA10,41616.8%+32%

07Keokuk County, IAIA9,79717.0%+47%

08Davis County, IAIA9,23017.1%+50%

09Emmet County, IAIA9,10717.1%+31%

10Wayne County, IAIA6,73817.2%+42%

11Crawford County, IAIA16,23717.7%+43%

12Floyd County, IAIA14,90118.3%+24%

13Pocahontas County, IAIA6,81918.7%+24%

14Van Buren County, IAIA7,13118.8%+59%

15Palo Alto County, IAIA8,89919.0%+37%

16Worth County, IAIA7,33819.1%+51%

17Page County, IAIA14,85619.2%+16%

18Humboldt County, IAIA9,40919.4%+26%

19Franklin County, IAIA9,86819.4%+34%

20Jackson County, IAIA19,28819.5%+62%

21Howard County, IAIA9,41519.5%+55%

22Wapello County, IAIA35,21019.6%+35%

23Monona County, IAIA8,53919.6%+46%

24Adair County, IAIA7,40319.9%+78%

25Jasper County, IAIA38,15320.0%+26%

26Montgomery County, IAIA10,00220.4%+58%

27Lyon County, IAIA12,35420.4%+43%

28Hancock County, IAIA10,52820.5%+32%

29Appanoose County, IAIA12,07720.5%+68%

30Tama County, IAIA16,79620.5%+59%

31Fayette County, IAIA19,04720.7%+50%

32Fremont County, IAIA6,52220.8%+49%

33Audubon County, IAIA5,50920.8%+69%

34Chickasaw County, IAIA11,66321.2%+73%

35Greene County, IAIA8,65821.2%+45%

36Monroe County, IAIA7,40621.4%+70%

37Butler County, IAIA14,04921.4%+73%

38Ida County, IAIA6,77721.6%+58%

39Plymouth County, IAIA25,69721.7%+12%

40Lee County, IAIA32,30621.7%+73%

41Calhoun County, IAIA9,56221.8%+42%

42Hardin County, IAIA16,45521.9%+28%

43Harrison County, IAIA14,62322.0%+74%

44Webster County, IAIA36,83822.0%+31%

45Jones County, IAIA21,25322.0%+74%

46O'Brien County, IAIA14,22022.0%+50%

47Cass County, IAIA12,96022.1%+33%

48Allamakee County, IAIA14,23822.2%+53%

49Buena Vista County, IAIA20,44922.2%+19%

50Sac County, IAIA9,52522.3%+64%

51Buchanan County, IAIA20,88322.4%+76%

52Clinton County, IAIA46,00222.4%+56%

53Marshall County, IAIA39,89022.6%+32%

54Delaware County, IAIA17,67422.6%+73%

55Hamilton County, IAIA14,94422.8%+30%

56Kossuth County, IAIA14,32222.8%+68%

57Henry County, IAIA19,34923.0%+42%

58Muscatine County, IAIA41,85323.1%+35%

59Union County, IAIA11,82923.3%+59%

60Cherokee County, IAIA11,36923.4%+54%

61Decatur County, IAIA7,65523.5%+55%

62Pottawattamie County, IAIA92,99623.6%+57%

63Cedar County, IAIA18,35923.7%+46%

64Des Moines County, IAIA38,07723.8%+49%

65Cerro Gordo County, IAIA42,37224.0%+18%

66Carroll County, IAIA20,30324.0%+50%

67Shelby County, IAIA11,68924.1%+57%

68Mahaska County, IAIA21,88024.1%+46%

69Woodbury County, IAIA106,64924.3%+29%

70Ringgold County, IAIA4,64224.6%+83%

71Iowa County, IAIA16,50424.8%+58%

72Wright County, IAIA12,80124.9%+84%

73Mitchell County, IAIA10,65024.9%+94%

74Guthrie County, IAIA10,78225.0%+68%

75Benton County, IAIA26,00425.6%+83%

76Winnebago County, IAIA10,25126.1%+58%

77Washington County, IAIA22,66726.2%+60%

78Adams County, IAIA3,61727.0%+125%

79Madison County, IAIA17,27027.1%+89%

80Poweshiek County, IAIA18,36827.3%+48%

81Clay County, IAIA16,20227.5%+69%

82Grundy County, IAIA12,36127.8%+62%

83Boone County, IAIA26,79928.5%+52%

84Black Hawk County, IAIA131,53230.3%+32%

85Sioux County, IAIA36,77430.6%+54%

86Mills County, IAIA14,79331.0%+90%

87Dickinson County, IAIA18,07731.2%+46%

88Winneshiek County, IAIA19,73331.2%+52%

89Marion County, IAIA34,19232.1%+70%

90Warren County, IAIA57,33133.3%+57%

91Dubuque County, IAIA99,38133.4%+56%

92Linn County, IAIA232,02834.7%+25%

93Bremer County, IAIA25,29636.2%+69%

94Scott County, IAIA175,25936.6%+47%

95Polk County, IAIA516,54640.3%+35%

96Jefferson County, IAIA15,29143.2%+39%

97Dallas County, IAIA118,45751.5%+92%

98Story County, IAIA101,29154.8%+23%

99Johnson County, IAIA160,04455.2%+16%

SHOWING 1–99 OF 99

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UPDATED 2026-06-02 · DATA: US CENSUS BUREAU ACS 5-YEAR ESTIMATES