RANKING · 2010 CENSUS · 23 SHOWN OF 23

Most sparsely populated, Wyoming counties · 2010

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+3%

02Carbon County, WYWY14,0132+2%

03Johnson County, WYWY8,9082+21%

04Sublette County, WYWY8,9292+73%

05Hot Springs County, WYWY4,6002−1%

06Crook County, WYWY7,8522+20%

07Weston County, WYWY6,8403+8%

08Converse County, WYWY13,8243+15%

09Big Horn County, WYWY12,0244+2%

10Washakie County, WYWY7,5974+3%

11Park County, WYWY31,1714+9%

12Platte County, WYWY8,6344−2%

13Sweetwater County, WYWY41,2674+16%

14Fremont County, WYWY39,4644+12%

15Lincoln County, WYWY21,1804+24%

16Teton County, WYWY23,3335+17%

17Goshen County, WYWY12,6406+6%

18Albany County, WYWY38,5588+13%

19Campbell County, WYWY48,14510+37%

20Uinta County, WYWY20,72810+7%

21Sheridan County, WYWY33,24112+10%

22Natrona County, WYWY80,52614+13%

23Laramie County, WYWY102,93834+12%

SHOWING 1–23 OF 23

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