RANKING · 2000 CENSUS · 23 SHOWN OF 23

Most sparsely populated, Wyoming counties · 2000

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+0%

02Sublette County, WYWY8,9291+0%

03Johnson County, WYWY8,9082+0%

04Carbon County, WYWY14,0132+0%

05Crook County, WYWY7,8522+0%

06Hot Springs County, WYWY4,6002+0%

07Weston County, WYWY6,8403+0%

08Converse County, WYWY13,8243+0%

09Lincoln County, WYWY21,1804+0%

10Sweetwater County, WYWY41,2674+0%

11Big Horn County, WYWY12,0244+0%

12Washakie County, WYWY7,5974+0%

13Park County, WYWY31,1714+0%

14Fremont County, WYWY39,4644+0%

15Platte County, WYWY8,6344+0%

16Teton County, WYWY23,3335+0%

17Goshen County, WYWY12,6406+0%

18Campbell County, WYWY48,1457+0%

19Albany County, WYWY38,5587+0%

20Uinta County, WYWY20,7289+0%

21Sheridan County, WYWY33,24111+0%

22Natrona County, WYWY80,52612+0%

23Laramie County, WYWY102,93830+0%

SHOWING 1–23 OF 23

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