RANKING · 2025 ESTIMATES · 23 SHOWN OF 23

Fastest growing, Wyoming counties

Wyoming counties ranked by population growth from the 2020 census to 2025. 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

01Crook County, WYWY7,852+9.3%−17%

02Lincoln County, WYWY21,180+8.2%−47%

03Sheridan County, WYWY33,241+7.5%−41%

04Johnson County, WYWY8,908+5.5%−64%

05Park County, WYWY31,171+5.2%−54%

06Big Horn County, WYWY12,024+4.4%−51%

07Albany County, WYWY38,558+4.0%+2%

08Laramie County, WYWY102,938+2.4%−79%

09Campbell County, WYWY48,145+2.4%−84%

10Sublette County, WYWY8,929+2.3%−90%

11Uinta County, WYWY20,728+1.4%−75%

12Goshen County, WYWY12,640+1.1%−15%

13Natrona County, WYWY80,526+0.7%−92%

14Fremont County, WYWY39,464+0.6%−91%

15Converse County, WYWY13,824+0.5%−94%

16Platte County, WYWY8,634+0.3%−96%

17Weston County, WYWY6,840+0.0%−98%

18Teton County, WYWY23,333+0.0%−100%

19Hot Springs County, WYWY4,600-0.5%−130%

20Washakie County, WYWY7,597-1.1%−3%

21Sweetwater County, WYWY41,267-2.4%−24%

22Carbon County, WYWY14,013-3.6%−41%

23Niobrara County, WYWY2,341-5.1%+39%

SHOWING 1–23 OF 23

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UPDATED 2026-07-15 · DATA: US CENSUS BUREAU POPULATION ESTIMATES