RANKING · 2010 CENSUS · 23 SHOWN OF 23

Most densely populated, Wyoming counties · 2010

Wyoming counties ranked by residents per square mile (2010). This list covers the 23 counties in Wyoming that qualify, ranked against each other statewide. The median across all 23 is 4.

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SAME RANKING BYCities States Metros

RELATEDLargest by population Fastest growing Fastest shrinking Most population gained Most population lost Most sparsely populated

YEAR1990 2000 2010 2020 2025

RANKPLACESTATEPOPPOPULATION DENSITYVS 2000

01Laramie County, WYWY102,93834+12%

02Natrona County, WYWY80,52614+13%

03Sheridan County, WYWY33,24112+10%

04Uinta County, WYWY20,72810+7%

05Campbell County, WYWY48,14510+37%

06Albany County, WYWY38,5588+13%

07Goshen County, WYWY12,6406+6%

08Teton County, WYWY23,3335+17%

09Lincoln County, WYWY21,1804+24%

10Fremont County, WYWY39,4644+12%

11Sweetwater County, WYWY41,2674+16%

12Platte County, WYWY8,6344−2%

13Park County, WYWY31,1714+9%

14Washakie County, WYWY7,5974+3%

15Big Horn County, WYWY12,0244+2%

16Converse County, WYWY13,8243+15%

17Weston County, WYWY6,8403+8%

18Crook County, WYWY7,8522+20%

19Hot Springs County, WYWY4,6002−1%

20Sublette County, WYWY8,9292+73%

21Johnson County, WYWY8,9082+21%

22Carbon County, WYWY14,0132+2%

23Niobrara County, WYWY2,3411+3%

SHOWING 1–23 OF 23

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UPDATED 2026-09-11 · DATA: US CENSUS BUREAU DECENNIAL CENSUS