RANKING · 2010 CENSUS · 23 SHOWN OF 23

Fastest growing, Wyoming counties · 2010

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

Flip the list · Fastest shrinking, US counties →

WyomingAll states All rankings

SAME RANKING BYCities States Metros

RELATEDLargest by population Fastest shrinking Most densely populated Most sparsely populated Best broadband access Worst broadband access

YEAR2000 2010 2020

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

Download CSV (full list, 23 rows)

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