RANKING · 2020 CENSUS · 23 SHOWN OF 23

Most population gained, Wyoming counties · 2020

Wyoming counties that added the most residents from the 2010 census to 2020, by raw count of people rather than percentage. This list covers the 23 counties in Wyoming that qualify, ranked against each other statewide.

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SAME RANKING BYCities States Metros

YEAR2000 2010 2020 2025

RANKPLACESTATEPOPPOPULATION CHANGEVS 2000

01Laramie County, WYWY102,938+8,774+4%

02Natrona County, WYWY80,526+4,505−15%

03Teton County, WYWY23,333+2,037−71%

04Sheridan County, WYWY33,241+1,805−40%

05Lincoln County, WYWY21,180+1,475−24%

06Park County, WYWY31,171+1,419−46%

07Campbell County, WYWY48,145+893−79%

08Albany County, WYWY38,558+767−37%

09Crook County, WYWY7,852+98−83%

10Niobrara County, WYWY2,341-17−82%

11Platte County, WYWY8,634-62−109%

12Converse County, WYWY13,824-82−109%

13Johnson County, WYWY8,908-122−113%

14Big Horn County, WYWY12,024-147−116%

15Hot Springs County, WYWY4,600-191−362%

16Weston County, WYWY6,840-370−394%

17Uinta County, WYWY20,728-668−164%

18Goshen County, WYWY12,640-751−555%

19Washakie County, WYWY7,597-848+757%

20Fremont County, WYWY39,464-889−142%

21Carbon County, WYWY14,013-1,348+32%

22Sublette County, WYWY8,929-1,519−241%

23Sweetwater County, WYWY41,267-1,534+27%

SHOWING 1–23 OF 23

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UPDATED 2026-07-15 · DATA: US CENSUS BUREAU DECENNIAL CENSUS