RANKING · 2025 ESTIMATES · 66 SHOWN OF 66

Fastest growing, South Dakota counties

South Dakota counties ranked by population growth from the 2020 census to 2025. 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

RELATEDLargest by population Fastest shrinking Most population gained Most population lost Most densely populated Most sparsely populated

YEAR2000 2010 2020 2025

RANKPLACESTATEPOPPOPULATION GROWTHVS 2000

01Lincoln County, SDSD77,145+18.4%−67%

02Lawrence County, SDSD29,459+14.3%+158%

03Custer County, SDSD9,431+13.4%−25%

04Hamlin County, SDSD6,900+11.9%+5%

05Mellette County, SDSD2,137+11.4%−552%

06Brookings County, SDSD37,635+9.5%−21%

07Minnehaha County, SDSD212,691+7.8%−60%

08Turner County, SDSD9,314+7.4%+132%

09Fall River County, SDSD7,467+7.1%+421%

10Pennington County, SDSD116,792+6.9%−22%

11Butte County, SDSD10,856+6.0%−60%

12Clark County, SDSD4,031+5.1%−186%

13McCook County, SDSD5,964+5.0%+96%

14Moody County, SDSD6,632+4.7%+245%

15Codington County, SDSD29,562+4.4%−69%

16Union County, SDSD17,402+3.5%−85%

17Bon Homme County, SDSD7,244+3.4%+43%

18Dewey County, SDSD5,419+3.4%−58%

19Meade County, SDSD30,711+2.9%−73%

20Marshall County, SDSD4,426+2.8%−150%

21Deuel County, SDSD4,408+2.6%−596%

22Faulk County, SDSD2,178+2.5%−166%

23Sanborn County, SDSD2,388+2.5%−145%

24Beadle County, SDSD19,624+2.5%−137%

25Sully County, SDSD1,479+2.3%−210%

26Aurora County, SDSD2,801+2.0%−180%

27Kingsbury County, SDSD5,284+1.9%−201%

28Douglas County, SDSD2,888+1.9%−124%

29Harding County, SDSD1,331+1.5%−108%

30Tripp County, SDSD5,708+1.5%−121%

31Yankton County, SDSD23,635+1.4%−89%

32Stanley County, SDSD3,018+1.3%−90%

33Gregory County, SDSD4,037+1.1%−110%

34Edmunds County, SDSD4,022+0.9%+258%

35Day County, SDSD5,484+0.6%−106%

36Perkins County, SDSD2,853+0.6%−104%

37Brule County, SDSD5,278+0.6%−127%

38Davison County, SDSD20,069+0.6%−92%

39Clay County, SDSD15,031+0.4%−84%

40Campbell County, SDSD1,3770.0%−100%

41Hanson County, SDSD3,456-0.1%−103%

42Hutchinson County, SDSD7,413-0.2%−92%

43Roberts County, SDSD10,255-0.2%−124%

44Grant County, SDSD7,534-0.3%−95%

45Jones County, SDSD913-0.4%−96%

46Jerauld County, SDSD1,654-0.5%−90%

47Lake County, SDSD10,993-0.6%−109%

48Lyman County, SDSD3,694-0.6%−109%

49Miner County, SDSD2,281-0.7%−94%

50Charles Mix County, SDSD9,303-0.7%−131%

51Hand County, SDSD3,121-0.8%−94%

52Ziebach County, SDSD2,389-1.0%−107%

53Hughes County, SDSD17,570-1.1%−110%

54Walworth County, SDSD5,217-1.8%−1%

55Brown County, SDSD37,561-1.9%+473%

56Bennett County, SDSD3,307-2.2%−119%

57Oglala Lakota County, SDSD13,338-2.4%–

58McPherson County, SDSD2,347-2.7%−74%

59Corson County, SDSD3,781-3.1%+829%

60Spink County, SDSD6,155-3.2%−51%

61Haakon County, SDSD1,802-3.7%−77%

62Potter County, SDSD2,377-3.8%−75%

63Todd County, SDSD8,863-4.9%−159%

64Jackson County, SDSD2,666-5.0%−218%

65Hyde County, SDSD1,191-5.6%+282%

66Buffalo County, SDSD1,802-7.5%−148%

SHOWING 1–66 OF 66

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