RANKING · 2025 ESTIMATES · 23 SHOWN OF 23

Most population gained, Wyoming counties

Wyoming counties that added the most residents from the 2020 census to 2025, 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+2,426−71%

02Sheridan County, WYWY33,241+2,320−23%

03Lincoln County, WYWY21,180+1,599−18%

04Park County, WYWY31,171+1,547−41%

05Albany County, WYWY38,558+1,492+23%

06Campbell County, WYWY48,145+1,119−74%

07Crook County, WYWY7,852+671+13%

08Natrona County, WYWY80,526+571−89%

09Big Horn County, WYWY12,024+503−46%

10Johnson County, WYWY8,908+461−50%

11Uinta County, WYWY20,728+278−73%

12Fremont County, WYWY39,464+230−89%

13Sublette County, WYWY8,929+201−81%

14Goshen County, WYWY12,640+142−14%

15Converse County, WYWY13,824+73−92%

16Platte County, WYWY8,634+29−96%

17Teton County, WYWY23,333+2−100%

18Weston County, WYWY6,840+2−98%

19Hot Springs County, WYWY4,600-21−129%

20Washakie County, WYWY7,597-88−11%

21Niobrara County, WYWY2,341-126+37%

22Carbon County, WYWY14,013-524−49%

23Sweetwater County, WYWY41,267-1,005−17%

SHOWING 1–23 OF 23

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