RANKING · 2000 CENSUS · 65 SHOWN OF 65

Youngest by median age, South Dakota counties · 2000

South Dakota counties with the youngest median age (2000 ACS). This list covers the 65 counties in South Dakota that qualify, ranked against each other statewide. The median across all 65 is 38.6.

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SAME RANKING BYCities States Metros ZIP codes

YEAR1990 2000 2010 2020 2024

RANKPLACESTATEPOPMEDIAN AGEVS 1990

01Todd County, SDSD8,86321.7+5%

02Buffalo County, SDSD1,80223.4+5%

03Ziebach County, SDSD2,38923.8−4%

04Clay County, SDSD15,03124.9+4%

05Dewey County, SDSD5,41926.5+2%

06Brookings County, SDSD37,63526.6+1%

07Corson County, SDSD3,78128.3−1%

08Bennett County, SDSD3,30729.2−2%

09Jackson County, SDSD2,66630.6+3%

10Mellette County, SDSD2,13732.1+5%

11Meade County, SDSD30,71133.4+11%

12Minnehaha County, SDSD212,69133.5+6%

13Lincoln County, SDSD77,14534.0+2%

14Lyman County, SDSD3,69434.5+10%

15Pennington County, SDSD116,79235.0+16%

16Codington County, SDSD29,56235.3+7%

17Charles Mix County, SDSD9,30335.7+6%

18Davison County, SDSD20,06936.0+7%

19Hanson County, SDSD3,45636.0−2%

20Lake County, SDSD10,99336.5+8%

21Brule County, SDSD5,27836.9+12%

22Union County, SDSD17,40236.9+5%

23Moody County, SDSD6,63237.0+8%

24Yankton County, SDSD23,63537.0+10%

25Roberts County, SDSD10,25537.1+5%

26Brown County, SDSD37,56137.2+12%

27Lawrence County, SDSD29,45937.2+14%

28Hughes County, SDSD17,57037.5+13%

29Harding County, SDSD1,33137.6+16%

30Stanley County, SDSD3,01837.6+15%

31Hamlin County, SDSD6,90038.0+1%

32Butte County, SDSD10,85638.0+10%

33McCook County, SDSD5,96438.6+1%

34Tripp County, SDSD5,70839.5+15%

35Spink County, SDSD6,15539.9+11%

36Sully County, SDSD1,47940.0+13%

37Beadle County, SDSD19,62440.1+13%

38Bon Homme County, SDSD7,24440.3+8%

39Grant County, SDSD7,53440.3+16%

40Turner County, SDSD9,31440.5+3%

41Aurora County, SDSD2,80140.6+6%

42Deuel County, SDSD4,40840.8+6%

43Sanborn County, SDSD2,38840.8+14%

44Jones County, SDSD91341.1+12%

45Haakon County, SDSD1,80241.3+30%

46Faulk County, SDSD2,17841.5+6%

47Clark County, SDSD4,03141.6+7%

48Edmunds County, SDSD4,02241.6+3%

49Marshall County, SDSD4,42641.6+7%

50Douglas County, SDSD2,88841.8+13%

51Campbell County, SDSD1,37741.9+7%

52Hyde County, SDSD1,19142.2+9%

53Miner County, SDSD2,28142.5+9%

54Kingsbury County, SDSD5,28442.7+7%

55Walworth County, SDSD5,21742.8+7%

56Day County, SDSD5,48442.9+9%

57Hutchinson County, SDSD7,41343.1+4%

58Perkins County, SDSD2,85343.1+10%

59Custer County, SDSD9,43143.2+17%

60Hand County, SDSD3,12143.6+13%

61Gregory County, SDSD4,03744.3+16%

62Fall River County, SDSD7,46745.5+9%

63Potter County, SDSD2,37745.8+17%

64Jerauld County, SDSD1,65446.3+12%

65McPherson County, SDSD2,34747.6+2%

SHOWING 1–65 OF 65

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UPDATED 2026-09-11 · DATA: US CENSUS BUREAU DECENNIAL CENSUS