Data / Rankings / Median age / Counties in Wyoming

Counties in Wyoming by median age

Niobrara County had the highest median age of 23 counties in 2023, at 49.6 years. Albany County had the lowest, at 28.7 years. The median was 41.5 years and the figure for Wyoming was 38.8 years. Source: the U.S. Census Bureau.

Highest49.6Niobrara County
Lowest28.7Albany County
Median41.523 counties
Wyoming38.8History

All counties, 2023

CSVChart (SVG)

Niobrara CountyNiobrara County: 49.6 years49.6Platte CountyPlatte County: 47.8 years47.8Johnson CountyJohnson County: 47 years47Hot Springs CountyHot Springs County: 45.4 years45.4Park CountyPark County: 44.8 years44.8Crook CountyCrook County: 44.3 years44.3Washakie CountyWashakie County: 44.2 years44.2Goshen CountyGoshen County: 43.4 years43.4Weston CountyWeston County: 43.1 years43.1Sheridan CountySheridan County: 42.9 years42.9Sublette CountySublette County: 42.8 years42.8Big Horn CountyBig Horn County: 41.5 years41.5Converse CountyConverse County: 41.3 years41.3Lincoln CountyLincoln County: 41.2 years41.2Carbon CountyCarbon County: 40.4 years40.4Teton CountyTeton County: 40.1 years40.1Fremont CountyFremont County: 39.4 years39.4Laramie CountyLaramie County: 38.2 years38.2Natrona CountyNatrona County: 38.2 years38.2Sweetwater CountySweetwater County: 37.4 years37.4Uinta CountyUinta County: 36.7 years36.7Campbell CountyCampbell County: 35.8 years35.8Albany CountyAlbany County: 28.7 years28.7
years. Source: U.S. Census Bureau. Retrieved 2026-10-08.

Full ranking

RankCounties2023
years		Change on 2022
1Niobrara County49.6+6
2Platte County47.8-1.3
3Johnson County47+0.9
4Hot Springs County45.4-0.4
5Park County44.8-0.2
6Crook County44.3+0.1
7Washakie County44.2-0.1
8Goshen County43.4-0.5
9Weston County43.10
10Sheridan County42.9+0.1
11Sublette County42.8+1.1
12Big Horn County41.5+0.6
13Converse County41.3+0.2
14Lincoln County41.2+0.5
15Carbon County40.4+0.9
16Teton County40.1+0.2
17Fremont County39.4+0.5
18Laramie County38.2+0.2
18Natrona County38.2+0.5
20Sweetwater County37.4+0.3
21Uinta County36.7+0.7
22Campbell County35.8+0.3
23Albany County28.7+0.4

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/2023/table-based-SF/data/5YRData/acsdt5y2023-b01002.dat. Retrieved 2026-10-08.

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Questions

Which county has the highest median age?

Niobrara County, with 49.6 years in 2023, according to the U.S. Census Bureau.

Which county has the lowest median age?

Albany County, with 28.7 years in 2023.

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