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. The median across all 66 is +38. Biggest climber in the top 100 since 2020: Brown County, SD, up 58 places to #1.

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SAME RANKING BYCities States Metros

YEAR2000 2010 2020 2025

RANKPLACESTATEPOPPOPULATION CHANGEVS 2000

01▲58Brown County, SDSD37,561-740+517%

02▲2Todd County, SDSD8,863-456−165%

03Oglala Lakota County, SDSD13,338-334–

04▲23Spink County, SDSD6,155-206−61%

05▲48Hughes County, SDSD17,570-195−112%

06▲29Buffalo County, SDSD1,802-146−153%

07▲2Jackson County, SDSD2,666-140−218%

08▲5Corson County, SDSD3,781-121+764%

09▲8Walworth County, SDSD5,217-98−13%

10▲36Potter County, SDSD2,377-95−81%

11▲17Bennett County, SDSD3,307-74−120%

12▼1Hyde County, SDSD1,191-71+184%

13▲12Haakon County, SDSD1,802-70−84%

14▲35Charles Mix County, SDSD9,303-70−132%

15Lake County, SDSD10,993-66−109%

16▲13McPherson County, SDSD2,347-64−80%

17▲27Roberts County, SDSD10,255-25−125%

18▼13Hand County, SDSD3,121-24−95%

19▲11Lyman County, SDSD3,694-24−109%

20▼18Ziebach County, SDSD2,389-24−108%

21▲27Grant County, SDSD7,534-22−96%

22▼3Miner County, SDSD2,281-17−96%

23▲18Hutchinson County, SDSD7,413-14−93%

24▼23Jerauld County, SDSD1,654-9−93%

25▲18Hanson County, SDSD3,456-5−103%

26▼5Jones County, SDSD913-4−97%

27▼7Campbell County, SDSD1,3770−100%

28▼14Perkins County, SDSD2,853+18−103%

29▲9Harding County, SDSD1,331+20−106%

30▲3Brule County, SDSD5,278+31−126%

31▲9Sully County, SDSD1,479+33−200%

32▼25Day County, SDSD5,484+35−105%

33▼11Edmunds County, SDSD4,022+36+227%

34Stanley County, SDSD3,018+38−88%

35▼29Gregory County, SDSD4,037+43−108%

36▼26Douglas County, SDSD2,888+53−118%

37▼29Faulk County, SDSD2,178+53−151%

38▼2Aurora County, SDSD2,801+54−170%

39▼8Sanborn County, SDSD2,388+58−137%

40▲16Clay County, SDSD15,031+64−82%

41▼9Tripp County, SDSD5,708+84−117%

42▼5Kingsbury County, SDSD5,284+97−188%

43▲9Davison County, SDSD20,069+113−91%

44▼21Deuel County, SDSD4,408+113−571%

45▼42Marshall County, SDSD4,426+120−145%

46▼20Dewey County, SDSD5,419+180−60%

47Clark County, SDSD4,031+194−175%

48▼32Mellette County, SDSD2,137+219−506%

49▼25Bon Homme County, SDSD7,244+241+41%

50▼11McCook County, SDSD5,964+282+96%

51▼39Moody County, SDSD6,632+296+236%

52▲2Yankton County, SDSD23,635+325−86%

53▲5Beadle County, SDSD19,624+475−139%

54▼36Fall River County, SDSD7,467+494+394%

55▲6Union County, SDSD17,402+591−75%

56▼11Butte County, SDSD10,856+613−48%

57▼6Turner County, SDSD9,314+641+135%

58▼8Hamlin County, SDSD6,900+736+30%

59▲3Meade County, SDSD30,711+859−64%

60▼18Custer County, SDSD9,431+1,113+2%

61▼6Codington County, SDSD29,562+1,237−61%

62▼2Brookings County, SDSD37,635+3,260+8%

63▼6Lawrence County, SDSD29,459+3,691+222%

64▼1Pennington County, SDSD116,792+7,570+5%

65▼1Lincoln County, SDSD77,145+11,984+38%

66▼1Minnehaha County, SDSD212,691+15,477−37%

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UPDATED 2026-09-11 · DATA: US CENSUS BUREAU POPULATION ESTIMATES