RANKING · 2025 ESTIMATES · 66 SHOWN OF 66

Most population lost, South Dakota counties

South Dakota counties that lost 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

01Brown County, SDSD37,561-740+517%

02Todd County, SDSD8,863-456−165%

03Oglala Lakota County, SDSD13,338-334–

04Spink County, SDSD6,155-206−61%

05Hughes County, SDSD17,570-195−112%

06Buffalo County, SDSD1,802-146−153%

07Jackson County, SDSD2,666-140−218%

08Corson County, SDSD3,781-121+764%

09Walworth County, SDSD5,217-98−13%

10Potter County, SDSD2,377-95−81%

11Bennett County, SDSD3,307-74−120%

12Hyde County, SDSD1,191-71+184%

13Haakon County, SDSD1,802-70−84%

14Charles Mix County, SDSD9,303-70−132%

15Lake County, SDSD10,993-66−109%

16McPherson County, SDSD2,347-64−80%

17Roberts County, SDSD10,255-25−125%

18Hand County, SDSD3,121-24−95%

19Lyman County, SDSD3,694-24−109%

20Ziebach County, SDSD2,389-24−108%

21Grant County, SDSD7,534-22−96%

22Miner County, SDSD2,281-17−96%

23Hutchinson County, SDSD7,413-14−93%

24Jerauld County, SDSD1,654-9−93%

25Hanson County, SDSD3,456-5−103%

26Jones County, SDSD913-4−97%

27Campbell County, SDSD1,3770−100%

28Perkins County, SDSD2,853+18−103%

29Harding County, SDSD1,331+20−106%

30Brule County, SDSD5,278+31−126%

31Sully County, SDSD1,479+33−200%

32Day County, SDSD5,484+35−105%

33Edmunds County, SDSD4,022+36+227%

34Stanley County, SDSD3,018+38−88%

35Gregory County, SDSD4,037+43−108%

36Douglas County, SDSD2,888+53−118%

37Faulk County, SDSD2,178+53−151%

38Aurora County, SDSD2,801+54−170%

39Sanborn County, SDSD2,388+58−137%

40Clay County, SDSD15,031+64−82%

41Tripp County, SDSD5,708+84−117%

42Kingsbury County, SDSD5,284+97−188%

43Davison County, SDSD20,069+113−91%

44Deuel County, SDSD4,408+113−571%

45Marshall County, SDSD4,426+120−145%

46Dewey County, SDSD5,419+180−60%

47Clark County, SDSD4,031+194−175%

48Mellette County, SDSD2,137+219−506%

49Bon Homme County, SDSD7,244+241+41%

50McCook County, SDSD5,964+282+96%

51Moody County, SDSD6,632+296+236%

52Yankton County, SDSD23,635+325−86%

53Beadle County, SDSD19,624+475−139%

54Fall River County, SDSD7,467+494+394%

55Union County, SDSD17,402+591−75%

56Butte County, SDSD10,856+613−48%

57Turner County, SDSD9,314+641+135%

58Hamlin County, SDSD6,900+736+30%

59Meade County, SDSD30,711+859−64%

60Custer County, SDSD9,431+1,113+2%

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

62Brookings County, SDSD37,635+3,260+8%

63Lawrence County, SDSD29,459+3,691+222%

64Pennington County, SDSD116,792+7,570+5%

65Lincoln County, SDSD77,145+11,984+38%

66Minnehaha County, SDSD212,691+15,477−37%

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