RANKING · 1990 CENSUS · 23 SHOWN OF 23

Most densely populated, Wyoming counties · 1990

Wyoming counties ranked by residents per square mile (1990). This list covers the 23 counties in Wyoming that qualify, ranked against each other statewide. The median across all 23 is 3.

Flip the list · Most sparsely populated, US counties →

WyomingAll states All rankings

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 –

01Laramie County, WYWY102,93827–

02Natrona County, WYWY80,52611–

03Sheridan County, WYWY33,2419–

04Uinta County, WYWY20,7289–

05Albany County, WYWY38,5587–

06Campbell County, WYWY48,1456–

07Goshen County, WYWY12,6406–

08Platte County, WYWY8,6344–

09Washakie County, WYWY7,5974–

10Sweetwater County, WYWY41,2674–

11Fremont County, WYWY39,4644–

12Big Horn County, WYWY12,0243–

13Park County, WYWY31,1713–

14Lincoln County, WYWY21,1803–

15Teton County, WYWY23,3333–

16Weston County, WYWY6,8403–

17Converse County, WYWY13,8243–

18Hot Springs County, WYWY4,6002–

19Carbon County, WYWY14,0132–

20Crook County, WYWY7,8522–

21Johnson County, WYWY8,9081–

22Sublette County, WYWY8,9291–

23Niobrara County, WYWY2,3411–

SHOWING 1–23 OF 23

Download CSV (full list, 23 rows)

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