RANKING · 2020 CENSUS · 66 SHOWN OF 66

Least educated, South Dakota counties · 2020

South Dakota counties with the smallest share of adults 25+ holding a bachelor's degree or higher (2023 ACS). This list covers the 66 counties in South Dakota that qualify, ranked against each other statewide.

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SAME RANKING BYCities States Metros ZIP codes

YEAR1990 2000 2010 2020 2024

RANKPLACESTATEPOPBACHELOR'S DEGREE OR HIGHERVS 2000

01Buffalo County, SDSD1,8028.1%+50%

02Oglala Lakota County, SDSD13,33811.1%–

03Mellette County, SDSD2,13713.2%−20%

04Todd County, SDSD8,86313.7%+13%

05Jackson County, SDSD2,66615.1%−7%

06Ziebach County, SDSD2,38916.1%+34%

07Corson County, SDSD3,78116.1%+43%

08Hanson County, SDSD3,45616.1%+16%

09Haakon County, SDSD1,80216.4%+7%

10Roberts County, SDSD10,25516.5%+24%

11Dewey County, SDSD5,41917.2%+41%

12Douglas County, SDSD2,88818.2%+25%

13Clark County, SDSD4,03118.9%+66%

14Sanborn County, SDSD2,38819.6%+32%

15Fall River County, SDSD7,46719.7%+3%

16Codington County, SDSD29,56220.0%+6%

17Miner County, SDSD2,28120.1%+49%

18Charles Mix County, SDSD9,30320.2%+44%

19Aurora County, SDSD2,80120.3%+60%

20Bon Homme County, SDSD7,24420.3%+33%

21Tripp County, SDSD5,70820.7%+54%

22Perkins County, SDSD2,85320.8%+42%

23Jerauld County, SDSD1,65421.3%+73%

24Gregory County, SDSD4,03721.5%+79%

25Butte County, SDSD10,85621.5%+75%

26Walworth County, SDSD5,21721.5%+37%

27Sully County, SDSD1,47921.8%+33%

28Hamlin County, SDSD6,90021.8%+71%

29Day County, SDSD5,48422.1%+43%

30Hand County, SDSD3,12122.4%+44%

31Bennett County, SDSD3,30722.4%+76%

32Grant County, SDSD7,53422.4%+52%

33Hyde County, SDSD1,19122.7%+42%

34Deuel County, SDSD4,40822.7%+71%

35Hutchinson County, SDSD7,41322.9%+62%

36Lyman County, SDSD3,69423.1%+45%

37Custer County, SDSD9,43123.2%−5%

38Kingsbury County, SDSD5,28423.4%+44%

39Beadle County, SDSD19,62423.5%+28%

40Potter County, SDSD2,37723.5%+45%

41McPherson County, SDSD2,34723.5%+120%

42McCook County, SDSD5,96424.6%+51%

43Harding County, SDSD1,33124.7%+39%

44Moody County, SDSD6,63225.3%+45%

45Marshall County, SDSD4,42625.8%+59%

46Edmunds County, SDSD4,02225.9%+67%

47Davison County, SDSD20,06926.0%+29%

48Meade County, SDSD30,71126.1%+55%

49Spink County, SDSD6,15526.2%+82%

50Turner County, SDSD9,31426.3%+55%

51Brule County, SDSD5,27826.5%+28%

52Yankton County, SDSD23,63526.7%+16%

53Campbell County, SDSD1,37728.3%+91%

54Stanley County, SDSD3,01828.5%+29%

55Faulk County, SDSD2,17828.6%+117%

56Jones County, SDSD91329.2%+65%

57Union County, SDSD17,40230.3%+15%

58Pennington County, SDSD116,79231.7%+27%

59Brown County, SDSD37,56131.7%+34%

60Lake County, SDSD10,99333.1%+57%

61Minnehaha County, SDSD212,69133.6%+30%

62Lawrence County, SDSD29,45935.0%+46%

63Hughes County, SDSD17,57036.6%+15%

64Lincoln County, SDSD77,14536.7%+44%

65Brookings County, SDSD37,63542.2%+31%

66Clay County, SDSD15,03148.9%+27%

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