RANKING · 2000 CENSUS · 23 SHOWN OF 23

Fastest shrinking, Wyoming counties · 2000

Wyoming counties with the steepest population decline since the prior decennial census. This list covers the 23 counties in Wyoming that qualify, ranked against each other statewide.

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SAME RANKING BYCities States Metros

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YEAR2000 2010 2020

RANKPLACESTATEPOPPOPULATION GROWTHVS 2000

01Carbon County, WYWY14,013-6.1%+0%

02Niobrara County, WYWY2,341-3.7%+0%

03Sweetwater County, WYWY41,267-3.1%+0%

04Washakie County, WYWY7,597-1.2%+0%

05Goshen County, WYWY12,640+1.3%+0%

06Hot Springs County, WYWY4,600+1.5%+0%

07Weston County, WYWY6,840+1.9%+0%

08Albany County, WYWY38,558+4.0%+0%

09Uinta County, WYWY20,728+5.5%+0%

10Fremont County, WYWY39,464+6.4%+0%

11Platte County, WYWY8,634+8.1%+0%

12Converse County, WYWY13,824+8.3%+0%

13Natrona County, WYWY80,526+8.7%+0%

14Big Horn County, WYWY12,024+8.9%+0%

15Crook County, WYWY7,852+11.2%+0%

16Park County, WYWY31,171+11.3%+0%

17Laramie County, WYWY102,938+11.6%+0%

18Sheridan County, WYWY33,241+12.7%+0%

19Campbell County, WYWY48,145+14.7%+0%

20Johnson County, WYWY8,908+15.1%+0%

21Lincoln County, WYWY21,180+15.4%+0%

22Sublette County, WYWY8,929+22.2%+0%

23Teton County, WYWY23,333+63.4%+0%

SHOWING 1–23 OF 23

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