RANKING · 2010 CENSUS · 23 SHOWN OF 23

Oldest by median age, Wyoming counties · 2010

Wyoming counties ranked by median age of residents (2010 ACS). This list covers the 23 counties in Wyoming that qualify, ranked against each other statewide. The median across all 23 is 39.0.

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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

01Hot Springs County, WYWY4,60048.6+10%

02Platte County, WYWY8,63447.5+15%

03Niobrara County, WYWY2,34146.1+8%

04Johnson County, WYWY8,90844.8+4%

05Crook County, WYWY7,85243.6+8%

06Park County, WYWY31,17143.6+10%

07Goshen County, WYWY12,64043.6+9%

08Weston County, WYWY6,84042.3+4%

09Sheridan County, WYWY33,24141.9+3%

10Big Horn County, WYWY12,02441.8+8%

11Washakie County, WYWY7,59741.8+6%

12Converse County, WYWY13,82439.0+4%

13Carbon County, WYWY14,01338.90%

14Fremont County, WYWY39,46438.5+2%

15Sublette County, WYWY8,92938.3−4%

16Lincoln County, WYWY21,18037.4+2%

17Laramie County, WYWY102,93837.0+5%

18Teton County, WYWY23,33336.9+5%

19Natrona County, WYWY80,52636.8+1%

20Uinta County, WYWY20,72833.9+8%

21Sweetwater County, WYWY41,26732.8−4%

22Campbell County, WYWY48,14531.9−1%

23Albany County, WYWY38,55826.80%

SHOWING 1–23 OF 23

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