RANKING · 2024 ACS · 23 SHOWN OF 23

Oldest by median age, Wyoming counties

Wyoming counties ranked by median age of residents (2024 ACS). This list covers the 23 counties in Wyoming that qualify, ranked against each other statewide.

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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

01Niobrara County, WYWY2,34154.9+28%

02Johnson County, WYWY8,90847.3+10%

03Platte County, WYWY8,63447.0+14%

04Park County, WYWY31,17144.9+13%

05Washakie County, WYWY7,59744.4+13%

06Crook County, WYWY7,85244.1+10%

07Weston County, WYWY6,84044.0+8%

08Sublette County, WYWY8,92943.5+9%

09Hot Springs County, WYWY4,60043.3−2%

10Goshen County, WYWY12,64042.8+7%

11Lincoln County, WYWY21,18042.7+16%

12Sheridan County, WYWY33,24142.7+5%

13Converse County, WYWY13,82442.1+12%

14Big Horn County, WYWY12,02441.7+8%

15Carbon County, WYWY14,01340.6+4%

16Teton County, WYWY23,33340.2+15%

17Fremont County, WYWY39,46439.7+5%

18Laramie County, WYWY102,93838.5+9%

19Natrona County, WYWY80,52638.4+5%

20Sweetwater County, WYWY41,26737.9+11%

21Uinta County, WYWY20,72837.1+18%

22Campbell County, WYWY48,14536.3+13%

23Albany County, WYWY38,55828.6+7%

SHOWING 1–23 OF 23

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UPDATED 2026-07-15 · DATA: US CENSUS BUREAU ACS 5-YEAR ESTIMATES