RANKING · 2020 CENSUS · 72 SHOWN OF 72

Most sparsely populated, Wisconsin counties · 2020

Wisconsin counties with the fewest residents per square mile (2023). This list covers the 72 counties in Wisconsin that qualify, ranked against each other statewide.

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SAME RANKING BYCities States Metros

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

YEAR1990 2000 2010 2020 2025

RANKPLACESTATEPOPPOPULATION DENSITYVS 2000

01Iron County, WIWI6,1278−11%

02Forest County, WIWI9,5749−8%

03Florence County, WIWI4,7489−10%

04Bayfield County, WIWI16,78711+8%

05Price County, WIWI13,98811−11%

06Menominee County, WIWI4,19912−7%

07Sawyer County, WIWI18,84614+12%

08Ashland County, WIWI16,20315−5%

09Rusk County, WIWI14,14616−8%

10Buffalo County, WIWI13,31820−4%

11Burnett County, WIWI17,22320+5%

12Taylor County, WIWI20,11820+1%

13Washburn County, WIWI17,08721+4%

14Jackson County, WIWI20,99921+11%

15Langlade County, WIWI19,53422−6%

16Lafayette County, WIWI17,47826+3%

17Vilas County, WIWI23,76127+10%

18Crawford County, WIWI15,91028−7%

19Clark County, WIWI35,05229+3%

20Richland County, WIWI17,03630−3%

21Marinette County, WIWI42,57430−3%

22Iowa County, WIWI23,95131+4%

23Pepin County, WIWI7,51332+1%

24Adams County, WIWI21,75232+11%

25Lincoln County, WIWI28,40332−4%

26Douglas County, WIWI43,99034+2%

27Oneida County, WIWI38,13134+3%

28Marquette County, WIWI15,92734−2%

29Juneau County, WIWI26,64935+10%

30Vernon County, WIWI31,44339+9%

31Oconto County, WIWI40,19539+9%

32Waushara County, WIWI25,22339+6%

33Trempealeau County, WIWI31,17142+14%

34Grant County, WIWI52,44645+5%

35Shawano County, WIWI41,56046+1%

36Polk County, WIWI45,80349+9%

37Monroe County, WIWI46,57251+13%

38Dunn County, WIWI46,22353+14%

39Barron County, WIWI46,48454+4%

40Green Lake County, WIWI19,30554−0%

41Kewaunee County, WIWI20,75860+2%

42Door County, WIWI30,61662+8%

43Green County, WIWI37,22764+10%

44Chippewa County, WIWI67,61466+20%

45Waupaca County, WIWI51,46169+0%

46Pierce County, WIWI43,51974+15%

47Columbia County, WIWI58,13276+11%

48Sauk County, WIWI66,65279+19%

49Portage County, WIWI71,94388+5%

50Marathon County, WIWI139,43289+10%

51Wood County, WIWI74,06094−2%

52Dodge County, WIWI89,097102+4%

53St. Croix County, WIWI98,276130+48%

54Manitowoc County, WIWI81,710138−2%

55Fond du Lac County, WIWI104,669145+7%

56Jefferson County, WIWI86,505153+15%

57Calumet County, WIWI53,982165+29%

58Eau Claire County, WIWI109,033166+13%

59Walworth County, WIWI106,127192+14%

60Rock County, WIWI166,472228+7%

61Sheboygan County, WIWI118,047231+5%

62La Crosse County, WIWI121,339267+13%

63Outagamie County, WIWI195,894299+18%

64Washington County, WIWI139,238318+16%

65Ozaukee County, WIWI94,346393+11%

66Winnebago County, WIWI174,218395+10%

67Dane County, WIWI590,375469+32%

68Brown County, WIWI275,803507+19%

69Racine County, WIWI198,919594+5%

70Kenosha County, WIWI168,448622+13%

71Waukesha County, WIWI417,210740+13%

72Milwaukee County, WIWI924,2163,891−0%

SHOWING 1–72 OF 72

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