RANKING · 2010 CENSUS · 23 SHOWN OF 23

Fastest growing, Wyoming counties · 2010

Wyoming counties ranked by population growth from the 2000 census to 2010. 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

01Sublette County, WYWY8,929+73.1%+229%

02Campbell County, WYWY48,145+36.9%+150%

03Lincoln County, WYWY21,180+24.2%+57%

04Johnson County, WYWY8,908+21.1%+40%

05Crook County, WYWY7,852+20.3%+81%

06Teton County, WYWY23,333+16.7%−74%

07Sweetwater County, WYWY41,267+16.5%−628%

08Converse County, WYWY13,824+14.8%+78%

09Natrona County, WYWY80,526+13.4%+55%

10Albany County, WYWY38,558+13.4%+239%

11Laramie County, WYWY102,938+12.4%+7%

12Fremont County, WYWY39,464+12.1%+90%

13Sheridan County, WYWY33,241+9.6%−24%

14Park County, WYWY31,171+9.4%−17%

15Weston County, WYWY6,840+8.5%+339%

16Uinta County, WYWY20,728+7.0%+26%

17Goshen County, WYWY12,640+5.7%+325%

18Niobrara County, WYWY2,341+3.2%−187%

19Washakie County, WYWY7,597+2.9%−349%

20Big Horn County, WYWY12,024+1.8%−80%

21Carbon County, WYWY14,013+1.6%−126%

22Hot Springs County, WYWY4,600-1.4%−194%

23Platte County, WYWY8,634-1.6%−120%

SHOWING 1–23 OF 23

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