RANKING · 2010 CENSUS · 72 SHOWN OF 72

Most sparsely populated, Wisconsin counties · 2010

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, WIWI6,1278−14%

02Florence County, WIWI4,7489−13%

03Forest County, WIWI9,5749−7%

04Bayfield County, WIWI16,78710+0%

05Price County, WIWI13,98811−11%

06Menominee County, WIWI4,19912−7%

07Sawyer County, WIWI18,84613+2%

08Ashland County, WIWI16,20315−4%

09Rusk County, WIWI14,14616−4%

10Burnett County, WIWI17,22319−1%

11Washburn County, WIWI17,08720−1%

12Buffalo County, WIWI13,31820−2%

13Jackson County, WIWI20,99921+7%

14Taylor County, WIWI20,11821+5%

15Langlade County, WIWI19,53423−4%

16Vilas County, WIWI23,76125+2%

17Lafayette County, WIWI17,47827+4%

18Clark County, WIWI35,05229+3%

19Crawford County, WIWI15,91029−3%

20Marinette County, WIWI42,57430−4%

21Richland County, WIWI17,03631+1%

22Iowa County, WIWI23,95131+4%

23Pepin County, WIWI7,51332+4%

24Oneida County, WIWI38,13132−2%

25Adams County, WIWI21,75232+12%

26Lincoln County, WIWI28,40333−3%

27Marquette County, WIWI15,92734−3%

28Douglas County, WIWI43,99034+2%

29Juneau County, WIWI26,64935+10%

30Vernon County, WIWI31,44338+6%

31Oconto County, WIWI40,19538+6%

32Waushara County, WIWI25,22339+6%

33Trempealeau County, WIWI31,17139+7%

34Grant County, WIWI52,44645+3%

35Shawano County, WIWI41,56047+3%

36Polk County, WIWI45,80348+7%

37Monroe County, WIWI46,57250+9%

38Dunn County, WIWI46,22352+10%

39Barron County, WIWI46,48453+2%

40Green Lake County, WIWI19,30555−0%

41Door County, WIWI30,61658−1%

42Kewaunee County, WIWI20,75860+2%

43Chippewa County, WIWI67,61462+13%

44Green County, WIWI37,22763+9%

45Waupaca County, WIWI51,46170+1%

46Pierce County, WIWI43,51971+11%

47Columbia County, WIWI58,13274+8%

48Sauk County, WIWI66,65275+12%

49Marathon County, WIWI139,43287+7%

50Portage County, WIWI71,94387+4%

51Wood County, WIWI74,06094−1%

52Dodge County, WIWI89,097101+3%

53St. Croix County, WIWI98,276117+34%

54Manitowoc County, WIWI81,710138−2%

55Fond du Lac County, WIWI104,669141+4%

56Jefferson County, WIWI86,505150+13%

57Calumet County, WIWI53,982154+21%

58Eau Claire County, WIWI109,033155+6%

59Walworth County, WIWI106,127184+9%

60Rock County, WIWI166,472223+5%

61Sheboygan County, WIWI118,047226+3%

62La Crosse County, WIWI121,339254+7%

63Outagamie County, WIWI195,894277+10%

64Washington County, WIWI139,238306+12%

65Ozaukee County, WIWI94,346371+5%

66Winnebago County, WIWI174,218384+7%

67Dane County, WIWI590,375408+14%

68Brown County, WIWI275,803468+9%

69Racine County, WIWI198,919587+3%

70Kenosha County, WIWI168,448612+11%

71Waukesha County, WIWI417,210709+8%

72Milwaukee County, WIWI924,2163,925+1%

SHOWING 1–72 OF 72

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