Data / Rankings / Median age / Counties in Wyoming

Counties in Wyoming by median age

Platte County had the highest median age of 23 counties in 2021, at 49.4 years. Albany County had the lowest, at 28.5 years. The median was 40.7 years and the figure for Wyoming was 38.2 years. Source: the U.S. Census Bureau.

Highest49.4Platte County
Lowest28.5Albany County
Median40.723 counties
Wyoming38.2History

All counties, 2021

CSVChart (SVG)

Platte CountyPlatte County: 49.4 years49.4Hot Springs CountyHot Springs County: 45.7 years45.7Johnson CountyJohnson County: 45.7 years45.7Niobrara CountyNiobrara County: 45.5 years45.5Park CountyPark County: 44.7 years44.7Crook CountyCrook County: 44 years44Goshen CountyGoshen County: 43.8 years43.8Weston CountyWeston County: 43.6 years43.6Washakie CountyWashakie County: 42.7 years42.7Sheridan CountySheridan County: 42.4 years42.4Converse CountyConverse County: 41.6 years41.6Big Horn CountyBig Horn County: 40.7 years40.7Sublette CountySublette County: 40.5 years40.5Lincoln CountyLincoln County: 40.2 years40.2Teton CountyTeton County: 39.6 years39.6Carbon CountyCarbon County: 39.5 years39.5Fremont CountyFremont County: 38.9 years38.9Laramie CountyLaramie County: 37.6 years37.6Natrona CountyNatrona County: 37.2 years37.2Sweetwater CountySweetwater County: 36.4 years36.4Uinta CountyUinta County: 36.3 years36.3Campbell CountyCampbell County: 35.2 years35.2Albany CountyAlbany County: 28.5 years28.5
years. Source: U.S. Census Bureau. Retrieved 2026-10-08.

Full ranking

RankCounties2021
years
1Platte County49.4
2Hot Springs County45.7
2Johnson County45.7
4Niobrara County45.5
5Park County44.7
6Crook County44
7Goshen County43.8
8Weston County43.6
9Washakie County42.7
10Sheridan County42.4
11Converse County41.6
12Big Horn County40.7
13Sublette County40.5
14Lincoln County40.2
15Teton County39.6
16Carbon County39.5
17Fremont County38.9
18Laramie County37.6
19Natrona County37.2
20Sweetwater County36.4
21Uinta County36.3
22Campbell County35.2
23Albany County28.5

Other periods

About this ranking

Age that divides the resident population into two halves of equal size. Spain and the EU: on 1 January. United States: American Community Survey five-year estimate, where the period shown is the last year of the five-year span.

Every value in the ranking comes from the same publisher and the same period, so the counties are compared on one definition. Equal values share a rank.

How to cite

U.S. Census Bureau. American Community Survey 5-year estimates, table B01002: median age, total population. https://www2.census.gov/programs-surveys/acs/summary_file/2021/table-based-SF/data/5YRData/acsdt5y2021-b01002.dat. Retrieved 2026-10-08.

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Questions

Which county has the highest median age?

Platte County, with 49.4 years in 2021, according to the U.S. Census Bureau.

Which county has the lowest median age?

Albany County, with 28.5 years in 2021.

Where does this ranking come from?

Every value comes from one source and one period, so the places are comparable: U.S. Census Bureau, American Community Survey 5-year estimates, table B01002: median age, total population. Retrieved 2026-10-08.

Median age: other rankings

Counties in Wyoming: more rankings