RANKING · 2010 CENSUS · 65 SHOWN OF 65

Most densely populated, South Dakota counties · 2010

South Dakota counties ranked by residents per square mile (2023). This list covers the 65 counties in South Dakota that qualify, ranked against each other statewide.

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SAME RANKING BYCities States Metros

RELATEDLargest by population Fastest growing Fastest shrinking Most sparsely populated Best broadband access Worst broadband access

YEAR1990 2000 2010 2020 2025

RANKPLACESTATEPOPPOPULATION DENSITYVS 2000

01Minnehaha County, SDSD212,691210+14%

02Lincoln County, SDSD77,14578+86%

03Davison County, SDSD20,06945+4%

04Yankton County, SDSD23,63543+4%

05Brookings County, SDSD37,63540+13%

06Codington County, SDSD29,56240+5%

07Pennington County, SDSD116,79236+14%

08Clay County, SDSD15,03134+2%

09Union County, SDSD17,40231+14%

10Lawrence County, SDSD29,45930+11%

11Hughes County, SDSD17,57023+3%

12Brown County, SDSD37,56121+3%

13Lake County, SDSD10,99320−1%

14Beadle County, SDSD19,62414+2%

15Turner County, SDSD9,31414−6%

16Bon Homme County, SDSD7,24413−3%

17Moody County, SDSD6,63212−2%

18Hamlin County, SDSD6,90012+7%

19Grant County, SDSD7,53411−6%

20McCook County, SDSD5,96410−4%

21Roberts County, SDSD10,2559+1%

22Hutchinson County, SDSD7,4139−9%

23Charles Mix County, SDSD9,3038−2%

24Walworth County, SDSD5,2178−9%

25Hanson County, SDSD3,4568+6%

26Meade County, SDSD30,7117+5%

27Deuel County, SDSD4,4087−3%

28Douglas County, SDSD2,8887−13%

29Todd County, SDSD8,8637+6%

30Brule County, SDSD5,2786−2%

31Kingsbury County, SDSD5,2846−11%

32Marshall County, SDSD4,4266+2%

33Day County, SDSD5,4846−9%

34Custer County, SDSD9,4315+13%

35Butte County, SDSD10,8564+11%

36Spink County, SDSD6,1554−14%

37Gregory County, SDSD4,0374−11%

38Miner County, SDSD2,2814−17%

39Sanborn County, SDSD2,3884−12%

40Fall River County, SDSD7,4674−5%

41Buffalo County, SDSD1,8024−6%

42Jerauld County, SDSD1,6544−10%

43Clark County, SDSD4,0314−11%

44Aurora County, SDSD2,8014−11%

45Edmunds County, SDSD4,0224−7%

46Tripp County, SDSD5,7084−12%

47Bennett County, SDSD3,3073−4%

48Potter County, SDSD2,3773−14%

49Faulk County, SDSD2,1782−10%

50Hand County, SDSD3,1212−8%

51Dewey County, SDSD5,4192−11%

52Lyman County, SDSD3,6942−4%

53McPherson County, SDSD2,3472−15%

54Stanley County, SDSD3,0182+7%

55Campbell County, SDSD1,3772−18%

56Hyde County, SDSD1,1912−15%

57Corson County, SDSD3,7812−3%

58Jackson County, SDSD2,6662+3%

59Mellette County, SDSD2,1372−2%

60Ziebach County, SDSD2,3891+11%

61Sully County, SDSD1,4791−12%

62Haakon County, SDSD1,8021−12%

63Perkins County, SDSD2,8531−11%

64Jones County, SDSD9131−16%

65Harding County, SDSD1,3310−7%

SHOWING 1–65 OF 65

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UPDATED 2026-06-02 · DATA: US CENSUS BUREAU ACS 5-YEAR ESTIMATES