RANKING · 2024 ACS · 99 SHOWN OF 99

Most educated, Iowa counties

Iowa counties ranked by the share of adults 25+ holding a bachelor's degree or higher (2024 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 college graduates Least educated Most graduate degrees Fewest graduate degrees

YEAR1990 2000 2010 2020 2024

RANKPLACESTATEPOPBACHELOR'S DEGREE OR HIGHERVS 2000

01Johnson County, IAIA160,04455.2%+16%

02Story County, IAIA101,29154.8%+23%

03Dallas County, IAIA118,45751.5%+92%

04Jefferson County, IAIA15,29143.2%+39%

05Polk County, IAIA516,54640.3%+35%

06Scott County, IAIA175,25936.6%+47%

07Bremer County, IAIA25,29636.2%+69%

08Linn County, IAIA232,02834.7%+25%

09Dubuque County, IAIA99,38133.4%+56%

10Warren County, IAIA57,33133.3%+57%

11Marion County, IAIA34,19232.1%+70%

12Winneshiek County, IAIA19,73331.2%+52%

13Dickinson County, IAIA18,07731.2%+46%

14Mills County, IAIA14,79331.0%+90%

15Sioux County, IAIA36,77430.6%+54%

16Black Hawk County, IAIA131,53230.3%+32%

17Boone County, IAIA26,79928.5%+52%

18Grundy County, IAIA12,36127.8%+62%

19Clay County, IAIA16,20227.5%+69%

20Poweshiek County, IAIA18,36827.3%+48%

21Madison County, IAIA17,27027.1%+89%

22Adams County, IAIA3,61727.0%+125%

23Washington County, IAIA22,66726.2%+60%

24Winnebago County, IAIA10,25126.1%+58%

25Benton County, IAIA26,00425.6%+83%

26Guthrie County, IAIA10,78225.0%+68%

27Mitchell County, IAIA10,65024.9%+94%

28Wright County, IAIA12,80124.9%+84%

29Iowa County, IAIA16,50424.8%+58%

30Ringgold County, IAIA4,64224.6%+83%

31Woodbury County, IAIA106,64924.3%+29%

32Mahaska County, IAIA21,88024.1%+46%

33Shelby County, IAIA11,68924.1%+57%

34Carroll County, IAIA20,30324.0%+50%

35Cerro Gordo County, IAIA42,37224.0%+18%

36Des Moines County, IAIA38,07723.8%+49%

37Cedar County, IAIA18,35923.7%+46%

38Pottawattamie County, IAIA92,99623.6%+57%

39Decatur County, IAIA7,65523.5%+55%

40Cherokee County, IAIA11,36923.4%+54%

41Union County, IAIA11,82923.3%+59%

42Muscatine County, IAIA41,85323.1%+35%

43Henry County, IAIA19,34923.0%+42%

44Kossuth County, IAIA14,32222.8%+68%

45Hamilton County, IAIA14,94422.8%+30%

46Delaware County, IAIA17,67422.6%+73%

47Marshall County, IAIA39,89022.6%+32%

48Clinton County, IAIA46,00222.4%+56%

49Buchanan County, IAIA20,88322.4%+76%

50Sac County, IAIA9,52522.3%+64%

51Buena Vista County, IAIA20,44922.2%+19%

52Allamakee County, IAIA14,23822.2%+53%

53Cass County, IAIA12,96022.1%+33%

54O'Brien County, IAIA14,22022.0%+50%

55Jones County, IAIA21,25322.0%+74%

56Webster County, IAIA36,83822.0%+31%

57Harrison County, IAIA14,62322.0%+74%

58Hardin County, IAIA16,45521.9%+28%

59Calhoun County, IAIA9,56221.8%+42%

60Lee County, IAIA32,30621.7%+73%

61Plymouth County, IAIA25,69721.7%+12%

62Ida County, IAIA6,77721.6%+58%

63Butler County, IAIA14,04921.4%+73%

64Monroe County, IAIA7,40621.4%+70%

65Greene County, IAIA8,65821.2%+45%

66Chickasaw County, IAIA11,66321.2%+73%

67Audubon County, IAIA5,50920.8%+69%

68Fremont County, IAIA6,52220.8%+49%

69Fayette County, IAIA19,04720.7%+50%

70Tama County, IAIA16,79620.5%+59%

71Appanoose County, IAIA12,07720.5%+68%

72Hancock County, IAIA10,52820.5%+32%

73Lyon County, IAIA12,35420.4%+43%

74Montgomery County, IAIA10,00220.4%+58%

75Jasper County, IAIA38,15320.0%+26%

76Adair County, IAIA7,40319.9%+78%

77Monona County, IAIA8,53919.6%+46%

78Wapello County, IAIA35,21019.6%+35%

79Howard County, IAIA9,41519.5%+55%

80Jackson County, IAIA19,28819.5%+62%

81Franklin County, IAIA9,86819.4%+34%

82Humboldt County, IAIA9,40919.4%+26%

83Page County, IAIA14,85619.2%+16%

84Worth County, IAIA7,33819.1%+51%

85Palo Alto County, IAIA8,89919.0%+37%

86Van Buren County, IAIA7,13118.8%+59%

87Pocahontas County, IAIA6,81918.7%+24%

88Floyd County, IAIA14,90118.3%+24%

89Crawford County, IAIA16,23717.7%+43%

90Wayne County, IAIA6,73817.2%+42%

91Emmet County, IAIA9,10717.1%+31%

92Davis County, IAIA9,23017.1%+50%

93Keokuk County, IAIA9,79717.0%+47%

94Louisa County, IAIA10,41616.8%+32%

95Osceola County, IAIA5,98016.7%+25%

96Taylor County, IAIA5,83516.0%+34%

97Clarke County, IAIA9,57416.0%+32%

98Lucas County, IAIA8,84715.8%+42%

99Clayton County, IAIA16,84514.5%+13%

SHOWING 1–99 OF 99

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UPDATED 2026-07-15 · DATA: US CENSUS BUREAU ACS 5-YEAR ESTIMATES