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. The median across all 66 is +38. Biggest climber in the top 100 since 2020: Marshall County, SD, up 41 places to #22.

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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%

04▲5Lawrence County, SDSD29,459+3,691+222%

05▲1Brookings County, SDSD37,635+3,260+8%

06▲5Codington County, SDSD29,562+1,237−61%

07▲17Custer County, SDSD9,431+1,113+2%

08▼4Meade County, SDSD30,711+859−64%

09▲7Hamlin County, SDSD6,900+736+30%

10▲5Turner County, SDSD9,314+641+135%

11▲10Butte County, SDSD10,856+613−48%

12▼7Union County, SDSD17,402+591−75%

13▲35Fall River County, SDSD7,467+494+394%

14▼6Beadle County, SDSD19,624+475−139%

15▼3Yankton County, SDSD23,635+325−86%

16▲38Moody County, SDSD6,632+296+236%

17▲10McCook County, SDSD5,964+282+96%

18▲24Bon Homme County, SDSD7,244+241+41%

19▲31Mellette County, SDSD2,137+219−506%

20▼1Clark County, SDSD4,031+194−175%

21▲19Dewey County, SDSD5,419+180−60%

22▲41Marshall County, SDSD4,426+120−145%

23▼9Davison County, SDSD20,069+113−91%

24▲19Deuel County, SDSD4,408+113−571%

25▲4Kingsbury County, SDSD5,284+97−188%

26▲8Tripp County, SDSD5,708+84−117%

27▼17Clay County, SDSD15,031+64−82%

28▲7Sanborn County, SDSD2,388+58−137%

29▲1Aurora County, SDSD2,801+54−170%

30▲26Douglas County, SDSD2,888+53−118%

31▲27Faulk County, SDSD2,178+53−151%

32▲28Gregory County, SDSD4,037+43−108%

33▼1Stanley County, SDSD3,018+38−88%

34▲10Edmunds County, SDSD4,022+36+227%

35▲24Day County, SDSD5,484+35−105%

36▼10Sully County, SDSD1,479+33−200%

37▼4Brule County, SDSD5,278+31−126%

38▼10Harding County, SDSD1,331+20−106%

39▲13Perkins County, SDSD2,853+18−103%

40▲5Campbell County, SDSD1,3770−100%

41▲5Jones County, SDSD913-4−97%

42▼19Hanson County, SDSD3,456-5−103%

43▲22Jerauld County, SDSD1,654-9−93%

44▼19Hutchinson County, SDSD7,413-14−93%

45▲2Miner County, SDSD2,281-17−96%

46▼28Grant County, SDSD7,534-22−96%

47▲14Hand County, SDSD3,121-24−95%

48▼12Lyman County, SDSD3,694-24−109%

49▲15Ziebach County, SDSD2,389-24−108%

50▼28Roberts County, SDSD10,255-25−125%

51▼14McPherson County, SDSD2,347-64−80%

52▼1Lake County, SDSD10,993-66−109%

53▼12Haakon County, SDSD1,802-70−84%

54▼37Charles Mix County, SDSD9,303-70−132%

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

56▼18Bennett County, SDSD3,307-74−120%

57▼37Potter County, SDSD2,377-95−81%

58▼9Walworth County, SDSD5,217-98−13%

59▼6Corson County, SDSD3,781-121+764%

60▼3Jackson County, SDSD2,666-140−218%

61▼30Buffalo County, SDSD1,802-146−153%

62▼49Hughes County, SDSD17,570-195−112%

63▼24Spink County, SDSD6,155-206−61%

64Oglala Lakota County, SDSD13,338-334–

65▼3Todd County, SDSD8,863-456−165%

66▼59Brown County, SDSD37,561-740+517%

SHOWING 1–66 OF 66

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