RANKING · 2025 ESTIMATES · 66 SHOWN OF 66

Most population gained, South Dakota counties

South Dakota counties that added the most residents from the 2020 census to 2025, by raw count of people rather than percentage. 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

YEAR2000 2010 2020 2025

RANKPLACESTATEPOPPOPULATION CHANGEVS 2000

01Minnehaha County, SDSD212,691+15,477−37%

02Lincoln County, SDSD77,145+11,984+38%

03Pennington County, SDSD116,792+7,570+5%

04Lawrence County, SDSD29,459+3,691+222%

05Brookings County, SDSD37,635+3,260+8%

06Codington County, SDSD29,562+1,237−61%

07Custer County, SDSD9,431+1,113+2%

08Meade County, SDSD30,711+859−64%

09Hamlin County, SDSD6,900+736+30%

10Turner County, SDSD9,314+641+135%

11Butte County, SDSD10,856+613−48%

12Union County, SDSD17,402+591−75%

13Fall River County, SDSD7,467+494+394%

14Beadle County, SDSD19,624+475−139%

15Yankton County, SDSD23,635+325−86%

16Moody County, SDSD6,632+296+236%

17McCook County, SDSD5,964+282+96%

18Bon Homme County, SDSD7,244+241+41%

19Mellette County, SDSD2,137+219−506%

20Clark County, SDSD4,031+194−175%

21Dewey County, SDSD5,419+180−60%

22Marshall County, SDSD4,426+120−145%

23Davison County, SDSD20,069+113−91%

24Deuel County, SDSD4,408+113−571%

25Kingsbury County, SDSD5,284+97−188%

26Tripp County, SDSD5,708+84−117%

27Clay County, SDSD15,031+64−82%

28Sanborn County, SDSD2,388+58−137%

29Aurora County, SDSD2,801+54−170%

30Douglas County, SDSD2,888+53−118%

31Faulk County, SDSD2,178+53−151%

32Gregory County, SDSD4,037+43−108%

33Stanley County, SDSD3,018+38−88%

34Edmunds County, SDSD4,022+36+227%

35Day County, SDSD5,484+35−105%

36Sully County, SDSD1,479+33−200%

37Brule County, SDSD5,278+31−126%

38Harding County, SDSD1,331+20−106%

39Perkins County, SDSD2,853+18−103%

40Campbell County, SDSD1,3770−100%

41Jones County, SDSD913-4−97%

42Hanson County, SDSD3,456-5−103%

43Jerauld County, SDSD1,654-9−93%

44Hutchinson County, SDSD7,413-14−93%

45Miner County, SDSD2,281-17−96%

46Grant County, SDSD7,534-22−96%

47Hand County, SDSD3,121-24−95%

48Lyman County, SDSD3,694-24−109%

49Ziebach County, SDSD2,389-24−108%

50Roberts County, SDSD10,255-25−125%

51McPherson County, SDSD2,347-64−80%

52Lake County, SDSD10,993-66−109%

53Haakon County, SDSD1,802-70−84%

54Charles Mix County, SDSD9,303-70−132%

55Hyde County, SDSD1,191-71+184%

56Bennett County, SDSD3,307-74−120%

57Potter County, SDSD2,377-95−81%

58Walworth County, SDSD5,217-98−13%

59Corson County, SDSD3,781-121+764%

60Jackson County, SDSD2,666-140−218%

61Buffalo County, SDSD1,802-146−153%

62Hughes County, SDSD17,570-195−112%

63Spink County, SDSD6,155-206−61%

64Oglala Lakota County, SDSD13,338-334–

65Todd County, SDSD8,863-456−165%

66Brown County, SDSD37,561-740+517%

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