RANKING · 2000 CENSUS · 99 SHOWN OF 99

Most graduate degrees, Iowa counties · 2000

Iowa counties ranked by the 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

RELATEDMost college graduates Most educated Least educated Fewest graduate degrees

YEAR1990 2000 2010 2020 2024

RANKPLACESTATEPOPGRADUATE DEGREEVS 1990

01Johnson County, IAIA160,04421.4%+7%

02Story County, IAIA101,29119.6%+13%

03Jefferson County, IAIA15,29111.9%+6%

04Polk County, IAIA516,5468.7%+20%

05Black Hawk County, IAIA131,5328.7%+53%

06Scott County, IAIA175,2598.2%+28%

07Linn County, IAIA232,0287.2%+26%

08Poweshiek County, IAIA18,3686.8%+8%

09Dubuque County, IAIA99,3816.8%+32%

10Dallas County, IAIA118,4576.4%+58%

11Sioux County, IAIA36,7746.4%+28%

12Bremer County, IAIA25,2966.3%+44%

13Winneshiek County, IAIA19,7336.2%+23%

14Cerro Gordo County, IAIA42,3726.2%+33%

15Warren County, IAIA57,3316.1%+37%

16Woodbury County, IAIA106,6496.0%+24%

17Dickinson County, IAIA18,0775.4%+10%

18Marion County, IAIA34,1925.4%+57%

19Decatur County, IAIA7,6555.4%+8%

20Des Moines County, IAIA38,0775.2%+34%

21Webster County, IAIA36,8385.1%+32%

22Wapello County, IAIA35,2104.9%+39%

23Boone County, IAIA26,7994.9%+43%

24Washington County, IAIA22,6674.8%+63%

25Page County, IAIA14,8564.8%+23%

26Muscatine County, IAIA41,8534.8%+36%

27Henry County, IAIA19,3494.8%+24%

28Buena Vista County, IAIA20,4494.7%+30%

29Cass County, IAIA12,9604.6%+31%

30Ringgold County, IAIA4,6424.6%+26%

31Pottawattamie County, IAIA92,9964.6%+38%

32Hamilton County, IAIA14,9444.5%+57%

33Osceola County, IAIA5,9804.5%+20%

34Marshall County, IAIA39,8904.5%−2%

35Grundy County, IAIA12,3614.5%+54%

36Plymouth County, IAIA25,6974.5%+6%

37Hardin County, IAIA16,4554.4%+36%

38Jasper County, IAIA38,1534.4%+41%

39Mills County, IAIA14,7934.4%+48%

40Mahaska County, IAIA21,8804.3%+11%

41Winnebago County, IAIA10,2514.3%+65%

42Iowa County, IAIA16,5044.3%+37%

43Shelby County, IAIA11,6894.1%+32%

44Calhoun County, IAIA9,5624.1%+32%

45Cherokee County, IAIA11,3694.0%+55%

46Audubon County, IAIA5,5094.0%+51%

47Jackson County, IAIA19,2884.0%+32%

48Clinton County, IAIA46,0024.0%+14%

49Floyd County, IAIA14,9013.8%+4%

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

51Wright County, IAIA12,8013.8%+36%

52Humboldt County, IAIA9,4093.8%+24%

53Allamakee County, IAIA14,2383.8%+25%

54Hancock County, IAIA10,5283.8%+37%

55Fayette County, IAIA19,0473.7%+8%

56Benton County, IAIA26,0043.7%+53%

57Taylor County, IAIA5,8353.7%+33%

58Cedar County, IAIA18,3593.6%+7%

59Van Buren County, IAIA7,1313.6%+42%

60Union County, IAIA11,8293.6%−7%

61Wayne County, IAIA6,7383.6%+30%

62Guthrie County, IAIA10,7823.5%+20%

63Emmet County, IAIA9,1073.5%+42%

64Carroll County, IAIA20,3033.5%+16%

65Louisa County, IAIA10,4163.4%+43%

66Clayton County, IAIA16,8453.4%+37%

67Madison County, IAIA17,2703.4%−4%

68Greene County, IAIA8,6583.4%−2%

69Howard County, IAIA9,4153.4%+62%

70Lee County, IAIA32,3063.4%−2%

71O'Brien County, IAIA14,2203.4%−9%

72Sac County, IAIA9,5253.3%+19%

73Davis County, IAIA9,2303.3%+17%

74Franklin County, IAIA9,8683.3%−1%

75Butler County, IAIA14,0493.3%+33%

76Montgomery County, IAIA10,0023.3%+17%

77Lyon County, IAIA12,3543.3%+42%

78Kossuth County, IAIA14,3223.3%+15%

79Jones County, IAIA21,2533.3%+16%

80Crawford County, IAIA16,2373.2%+21%

81Chickasaw County, IAIA11,6633.2%+25%

82Clarke County, IAIA9,5743.2%+42%

83Monroe County, IAIA7,4063.1%+5%

84Delaware County, IAIA17,6743.1%+10%

85Harrison County, IAIA14,6233.1%+28%

86Buchanan County, IAIA20,8833.1%+8%

87Appanoose County, IAIA12,0773.1%+3%

88Monona County, IAIA8,5393.1%+30%

89Fremont County, IAIA6,5223.0%+15%

90Worth County, IAIA7,3383.0%+19%

91Adams County, IAIA3,6172.9%−13%

92Lucas County, IAIA8,8472.9%+50%

93Pocahontas County, IAIA6,8192.9%−7%

94Ida County, IAIA6,7772.9%+70%

95Mitchell County, IAIA10,6502.9%+19%

96Clay County, IAIA16,2022.9%+17%

97Tama County, IAIA16,7962.9%−0%

98Keokuk County, IAIA9,7972.8%+16%

99Adair County, IAIA7,4032.3%+7%

SHOWING 1–99 OF 99

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