RANKING · 2025 ESTIMATES · 66 SHOWN OF 66

Largest by population, South Dakota counties

The most populous South Dakota counties as of the 2025 population estimates. 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

RELATEDFastest growing Fastest shrinking Most population gained Most population lost Most densely populated Most sparsely populated

YEAR1990 2000 2010 2020 2025

RANKPLACESTATETOTAL POPULATIONVS 2000

01Minnehaha County, SDSD212,691+43%

02Pennington County, SDSD116,792+32%

03Lincoln County, SDSD77,145+220%

04Brookings County, SDSD37,635+33%

05Brown County, SDSD37,561+6%

06Meade County, SDSD30,711+27%

07Codington County, SDSD29,562+14%

08Lawrence County, SDSD29,459+35%

09Yankton County, SDSD23,635+9%

10Davison County, SDSD20,069+7%

11Beadle County, SDSD19,624+15%

12Hughes County, SDSD17,570+7%

13Union County, SDSD17,402+38%

14Clay County, SDSD15,031+11%

15Oglala Lakota County, SDSD13,338–

16Lake County, SDSD10,993−3%

17Butte County, SDSD10,856+19%

18Roberts County, SDSD10,255+2%

19Custer County, SDSD9,431+30%

20Turner County, SDSD9,314+5%

21Charles Mix County, SDSD9,303−1%

22Todd County, SDSD8,863−2%

23Grant County, SDSD7,534−4%

24Fall River County, SDSD7,467+0%

25Hutchinson County, SDSD7,413−8%

26Bon Homme County, SDSD7,244−0%

27Hamlin County, SDSD6,900+25%

28Moody County, SDSD6,632+1%

29Spink County, SDSD6,155−17%

30McCook County, SDSD5,964+2%

31Tripp County, SDSD5,708−11%

32Day County, SDSD5,484−12%

33Dewey County, SDSD5,419−9%

34Kingsbury County, SDSD5,284−9%

35Brule County, SDSD5,278−2%

36Walworth County, SDSD5,217−13%

37Marshall County, SDSD4,426−3%

38Deuel County, SDSD4,408−2%

39Gregory County, SDSD4,037−16%

40Clark County, SDSD4,031−3%

41Edmunds County, SDSD4,022−8%

42Corson County, SDSD3,781−10%

43Lyman County, SDSD3,694−5%

44Hanson County, SDSD3,456+10%

45Bennett County, SDSD3,307−7%

46Hand County, SDSD3,121−17%

47Stanley County, SDSD3,018+9%

48Douglas County, SDSD2,888−16%

49Perkins County, SDSD2,853−15%

50Aurora County, SDSD2,801−8%

51Jackson County, SDSD2,666−9%

52Ziebach County, SDSD2,389−5%

53Sanborn County, SDSD2,388−11%

54Potter County, SDSD2,377−12%

55McPherson County, SDSD2,347−19%

56Miner County, SDSD2,281−21%

57Faulk County, SDSD2,178−18%

58Mellette County, SDSD2,137+3%

59Buffalo County, SDSD1,802−11%

60Haakon County, SDSD1,802−18%

61Jerauld County, SDSD1,654−28%

62Sully County, SDSD1,479−5%

63Campbell County, SDSD1,377−23%

64Harding County, SDSD1,331−2%

65Hyde County, SDSD1,191−29%

66Jones County, SDSD913−23%

SHOWING 1–66 OF 66

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UPDATED 2026-07-15 · DATA: US CENSUS BUREAU POPULATION ESTIMATES