RANKING · 1990 CENSUS · 65 SHOWN OF 65

Fewest graduate degrees, South Dakota counties · 1990

South Dakota counties with the smallest share of adults 25+ holding a graduate or professional degree (1990 ACS). This list covers the 65 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

RANKPLACESTATEPOPGRADUATE DEGREEVS –

01Buffalo County, SDSD1,8021.0%–

02Sully County, SDSD1,4791.0%–

03Clark County, SDSD4,0311.3%–

04Marshall County, SDSD4,4261.9%–

05Jackson County, SDSD2,6661.9%–

06Hamlin County, SDSD6,9002.0%–

07Grant County, SDSD7,5342.0%–

08Tripp County, SDSD5,7082.0%–

09Miner County, SDSD2,2812.1%–

10Aurora County, SDSD2,8012.2%–

11Campbell County, SDSD1,3772.2%–

12Gregory County, SDSD4,0372.2%–

13Charles Mix County, SDSD9,3032.2%–

14Edmunds County, SDSD4,0222.2%–

15Ziebach County, SDSD2,3892.3%–

16Faulk County, SDSD2,1782.4%–

17Deuel County, SDSD4,4082.4%–

18Jerauld County, SDSD1,6542.5%–

19Kingsbury County, SDSD5,2842.5%–

20McPherson County, SDSD2,3472.6%–

21Turner County, SDSD9,3142.6%–

22Harding County, SDSD1,3312.7%–

23Douglas County, SDSD2,8882.7%–

24Haakon County, SDSD1,8022.8%–

25Hand County, SDSD3,1212.8%–

26Corson County, SDSD3,7812.8%–

27Lyman County, SDSD3,6942.8%–

28Roberts County, SDSD10,2552.9%–

29Spink County, SDSD6,1552.9%–

30Dewey County, SDSD5,4192.9%–

31Hutchinson County, SDSD7,4133.0%–

32McCook County, SDSD5,9643.0%–

33Bennett County, SDSD3,3073.0%–

34Potter County, SDSD2,3773.1%–

35Day County, SDSD5,4843.1%–

36Sanborn County, SDSD2,3883.2%–

37Mellette County, SDSD2,1373.3%–

38Butte County, SDSD10,8563.3%–

39Moody County, SDSD6,6323.3%–

40Beadle County, SDSD19,6243.4%–

41Bon Homme County, SDSD7,2443.5%–

42Hyde County, SDSD1,1913.5%–

43Jones County, SDSD9133.6%–

44Stanley County, SDSD3,0183.6%–

45Codington County, SDSD29,5623.7%–

46Walworth County, SDSD5,2174.0%–

47Perkins County, SDSD2,8534.0%–

48Brule County, SDSD5,2784.3%–

49Davison County, SDSD20,0694.3%–

50Fall River County, SDSD7,4674.5%–

51Custer County, SDSD9,4314.5%–

52Hanson County, SDSD3,4564.5%–

53Lincoln County, SDSD77,1454.6%–

54Meade County, SDSD30,7114.8%–

55Union County, SDSD17,4024.8%–

56Todd County, SDSD8,8635.0%–

57Lake County, SDSD10,9935.1%–

58Lawrence County, SDSD29,4595.1%–

59Minnehaha County, SDSD212,6915.4%–

60Brown County, SDSD37,5615.9%–

61Yankton County, SDSD23,6356.1%–

62Pennington County, SDSD116,7926.4%–

63Hughes County, SDSD17,5707.1%–

64Brookings County, SDSD37,63511.9%–

65Clay County, SDSD15,03119.5%–

SHOWING 1–65 OF 65

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