RANKING · 2020 CENSUS · 23 SHOWN OF 23

Fastest growing, Wyoming counties · 2020

Wyoming counties ranked by population growth from the 2010 census to 2020. This list covers the 23 counties in Wyoming that qualify, ranked against each other statewide.

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SAME RANKING BYCities States Metros

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

YEAR2000 2010 2020 2025

RANKPLACESTATEPOPPOPULATION GROWTHVS 2000

01Teton County, WYWY23,333+9.6%−53.8 pts

02Laramie County, WYWY102,938+9.6%−2.0 pts

03Lincoln County, WYWY21,180+8.1%−7.3 pts

04Sheridan County, WYWY33,241+6.2%−6.5 pts

05Natrona County, WYWY80,526+6.0%−2.7 pts

06Park County, WYWY31,171+5.0%−6.2 pts

07Albany County, WYWY38,558+2.1%−1.8 pts

08Campbell County, WYWY48,145+1.9%−12.8 pts

09Crook County, WYWY7,852+1.4%−9.8 pts

10Converse County, WYWY13,824-0.6%−8.9 pts

11Niobrara County, WYWY2,341-0.7%+3.0 pts

12Platte County, WYWY8,634-0.7%−8.8 pts

13Big Horn County, WYWY12,024-1.3%−10.2 pts

14Johnson County, WYWY8,908-1.4%−16.6 pts

15Fremont County, WYWY39,464-2.2%−8.6 pts

16Uinta County, WYWY20,728-3.2%−8.7 pts

17Sweetwater County, WYWY41,267-3.5%−0.4 pts

18Hot Springs County, WYWY4,600-4.0%−5.5 pts

19Weston County, WYWY6,840-5.1%−7.1 pts

20Goshen County, WYWY12,640-5.7%−7.0 pts

21Carbon County, WYWY14,013-8.5%−2.4 pts

22Washakie County, WYWY7,597-9.9%−8.8 pts

23Sublette County, WYWY8,929-14.8%−37.1 pts

SHOWING 1–23 OF 23

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UPDATED 2026-08-08 · DATA: US CENSUS BUREAU DECENNIAL CENSUS