RANKING · 2020 CENSUS · 23 SHOWN OF 23

Most sparsely populated, Wyoming counties · 2020

Wyoming counties with the fewest residents per square mile (2023). This list covers the 23 counties in Wyoming that qualify, ranked against each other statewide.

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YEAR1990 2000 2010 2020 2025

RANKPLACESTATEPOPPOPULATION DENSITYVS 2000

01Niobrara County, WYWY2,3411+2%

02Sublette County, WYWY8,9292+47%

03Carbon County, WYWY14,0132−7%

04Johnson County, WYWY8,9082+19%

05Hot Springs County, WYWY4,6002−5%

06Crook County, WYWY7,8523+22%

07Weston County, WYWY6,8403+3%

08Converse County, WYWY13,8243+14%

09Washakie County, WYWY7,5973−7%

10Big Horn County, WYWY12,0244+1%

11Sweetwater County, WYWY41,2674+12%

12Platte County, WYWY8,6344−2%

13Park County, WYWY31,1714+15%

14Fremont County, WYWY39,4644+10%

15Lincoln County, WYWY21,1805+34%

16Goshen County, WYWY12,6406−0%

17Teton County, WYWY23,3336+28%

18Albany County, WYWY38,5589+16%

19Campbell County, WYWY48,14510+40%

20Uinta County, WYWY20,72810+4%

21Sheridan County, WYWY33,24112+16%

22Natrona County, WYWY80,52615+20%

23Laramie County, WYWY102,93837+23%

SHOWING 1–23 OF 23

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