RANKING · 2020 CENSUS · 23 SHOWN OF 23

Oldest by median age, Wyoming counties · 2020

Wyoming counties ranked by median age of residents (2020 ACS). This list covers the 23 counties in Wyoming that qualify, ranked against each other statewide. The median across all 23 is 41.5.

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SAME RANKING BYCities States Metros ZIP codes

RELATEDLargest foreign-born population Most residents with a disability Largest veteran population Most uninsured people Largest senior population Most unmarried people

YEAR1990 2000 2010 2020 2024

RANKPLACESTATEPOPMEDIAN AGEVS 2000

01Platte County, WYWY8,63449.1+19%

02Hot Springs County, WYWY4,60048.9+11%

03Johnson County, WYWY8,90848.0+12%

04Park County, WYWY31,17145.7+15%

05Crook County, WYWY7,85245.5+13%

06Niobrara County, WYWY2,34145.5+6%

07Weston County, WYWY6,84045.3+11%

08Goshen County, WYWY12,64044.9+12%

09Washakie County, WYWY7,59744.4+13%

10Sheridan County, WYWY33,24143.1+6%

11Big Horn County, WYWY12,02441.9+8%

12Sublette County, WYWY8,92941.5+4%

13Lincoln County, WYWY21,18041.1+12%

14Carbon County, WYWY14,01340.3+4%

15Converse County, WYWY13,82440.2+7%

16Fremont County, WYWY39,46440.0+6%

17Teton County, WYWY23,33340.0+14%

18Laramie County, WYWY102,93838.1+8%

19Natrona County, WYWY80,52637.6+3%

20Uinta County, WYWY20,72837.3+19%

21Sweetwater County, WYWY41,26736.4+6%

22Campbell County, WYWY48,14534.8+8%

23Albany County, WYWY38,55829.1+9%

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