RANKING · 2000 CENSUS · 23 SHOWN OF 23

Most population gained, Wyoming counties · 2000

Wyoming counties that added the most residents from the 1990 census to 2000, by raw count of people rather than percentage. This list covers the 23 counties in Wyoming that qualify, ranked against each other statewide. The median across all 23 is +936.

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SAME RANKING BYCities States Metros

RELATEDLargest by population Fastest growing Fastest shrinking Most population lost Most densely populated Most sparsely populated

YEAR2000 2010 2020 2025

RANKPLACESTATEPOPPOPULATION CHANGEVS –

01Laramie County, WYWY102,938+8,465–

02Teton County, WYWY23,333+7,079–

03Natrona County, WYWY80,526+5,307–

04Campbell County, WYWY48,145+4,328–

05Sheridan County, WYWY33,241+2,998–

06Park County, WYWY31,171+2,608–

07Fremont County, WYWY39,464+2,142–

08Lincoln County, WYWY21,180+1,948–

09Albany County, WYWY38,558+1,217–

10Sublette County, WYWY8,929+1,077–

11Uinta County, WYWY20,728+1,037–

12Big Horn County, WYWY12,024+936–

13Johnson County, WYWY8,908+930–

14Converse County, WYWY13,824+924–

15Platte County, WYWY8,634+662–

16Crook County, WYWY7,852+593–

17Goshen County, WYWY12,640+165–

18Weston County, WYWY6,840+126–

19Hot Springs County, WYWY4,600+73–

20Niobrara County, WYWY2,341-92–

21Washakie County, WYWY7,597-99–

22Carbon County, WYWY14,013-1,020–

23Sweetwater County, WYWY41,267-1,210–

SHOWING 1–23 OF 23

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UPDATED 2026-09-11 · DATA: US CENSUS BUREAU DECENNIAL CENSUS