RANKING · 2000 CENSUS · 99 SHOWN OF 99

Fewest graduate degrees, Iowa counties · 2000

Iowa counties with the smallest share of adults 25+ holding a graduate or professional degree (2000 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

YEAR1990 2000 2010 2020 2024

RANKPLACESTATEPOPGRADUATE DEGREEVS 1990

01Adair County, IAIA7,4032.3%+7%

02Keokuk County, IAIA9,7972.8%+16%

03Tama County, IAIA16,7962.9%−0%

04Clay County, IAIA16,2022.9%+17%

05Mitchell County, IAIA10,6502.9%+19%

06Ida County, IAIA6,7772.9%+70%

07Pocahontas County, IAIA6,8192.9%−7%

08Lucas County, IAIA8,8472.9%+50%

09Adams County, IAIA3,6172.9%−13%

10Worth County, IAIA7,3383.0%+19%

11Fremont County, IAIA6,5223.0%+15%

12Monona County, IAIA8,5393.1%+30%

13Appanoose County, IAIA12,0773.1%+3%

14Buchanan County, IAIA20,8833.1%+8%

15Harrison County, IAIA14,6233.1%+28%

16Delaware County, IAIA17,6743.1%+10%

17Monroe County, IAIA7,4063.1%+5%

18Clarke County, IAIA9,5743.2%+42%

19Chickasaw County, IAIA11,6633.2%+25%

20Crawford County, IAIA16,2373.2%+21%

21Jones County, IAIA21,2533.3%+16%

22Kossuth County, IAIA14,3223.3%+15%

23Lyon County, IAIA12,3543.3%+42%

24Montgomery County, IAIA10,0023.3%+17%

25Butler County, IAIA14,0493.3%+33%

26Franklin County, IAIA9,8683.3%−1%

27Davis County, IAIA9,2303.3%+17%

28Sac County, IAIA9,5253.3%+19%

29O'Brien County, IAIA14,2203.4%−9%

30Lee County, IAIA32,3063.4%−2%

31Howard County, IAIA9,4153.4%+62%

32Greene County, IAIA8,6583.4%−2%

33Madison County, IAIA17,2703.4%−4%

34Clayton County, IAIA16,8453.4%+37%

35Louisa County, IAIA10,4163.4%+43%

36Carroll County, IAIA20,3033.5%+16%

37Emmet County, IAIA9,1073.5%+42%

38Guthrie County, IAIA10,7823.5%+20%

39Wayne County, IAIA6,7383.6%+30%

40Union County, IAIA11,8293.6%−7%

41Van Buren County, IAIA7,1313.6%+42%

42Cedar County, IAIA18,3593.6%+7%

43Taylor County, IAIA5,8353.7%+33%

44Benton County, IAIA26,0043.7%+53%

45Fayette County, IAIA19,0473.7%+8%

46Hancock County, IAIA10,5283.8%+37%

47Allamakee County, IAIA14,2383.8%+25%

48Humboldt County, IAIA9,4093.8%+24%

49Wright County, IAIA12,8013.8%+36%

50Palo Alto County, IAIA8,8993.8%+39%

51Floyd County, IAIA14,9013.8%+4%

52Clinton County, IAIA46,0024.0%+14%

53Jackson County, IAIA19,2884.0%+32%

54Audubon County, IAIA5,5094.0%+51%

55Cherokee County, IAIA11,3694.0%+55%

56Calhoun County, IAIA9,5624.1%+32%

57Shelby County, IAIA11,6894.1%+32%

58Iowa County, IAIA16,5044.3%+37%

59Winnebago County, IAIA10,2514.3%+65%

60Mahaska County, IAIA21,8804.3%+11%

61Mills County, IAIA14,7934.4%+48%

62Jasper County, IAIA38,1534.4%+41%

63Hardin County, IAIA16,4554.4%+36%

64Plymouth County, IAIA25,6974.5%+6%

65Grundy County, IAIA12,3614.5%+54%

66Marshall County, IAIA39,8904.5%−2%

67Osceola County, IAIA5,9804.5%+20%

68Hamilton County, IAIA14,9444.5%+57%

69Pottawattamie County, IAIA92,9964.6%+38%

70Ringgold County, IAIA4,6424.6%+26%

71Cass County, IAIA12,9604.6%+31%

72Buena Vista County, IAIA20,4494.7%+30%

73Henry County, IAIA19,3494.8%+24%

74Muscatine County, IAIA41,8534.8%+36%

75Page County, IAIA14,8564.8%+23%

76Washington County, IAIA22,6674.8%+63%

77Boone County, IAIA26,7994.9%+43%

78Wapello County, IAIA35,2104.9%+39%

79Webster County, IAIA36,8385.1%+32%

80Des Moines County, IAIA38,0775.2%+34%

81Decatur County, IAIA7,6555.4%+8%

82Marion County, IAIA34,1925.4%+57%

83Dickinson County, IAIA18,0775.4%+10%

84Woodbury County, IAIA106,6496.0%+24%

85Warren County, IAIA57,3316.1%+37%

86Cerro Gordo County, IAIA42,3726.2%+33%

87Winneshiek County, IAIA19,7336.2%+23%

88Bremer County, IAIA25,2966.3%+44%

89Sioux County, IAIA36,7746.4%+28%

90Dallas County, IAIA118,4576.4%+58%

91Dubuque County, IAIA99,3816.8%+32%

92Poweshiek County, IAIA18,3686.8%+8%

93Linn County, IAIA232,0287.2%+26%

94Scott County, IAIA175,2598.2%+28%

95Black Hawk County, IAIA131,5328.7%+53%

96Polk County, IAIA516,5468.7%+20%

97Jefferson County, IAIA15,29111.9%+6%

98Story County, IAIA101,29119.6%+13%

99Johnson County, IAIA160,04421.4%+7%

SHOWING 1–99 OF 99

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