How Yellowstone County Compares

Yellowstone County

39.0 years

Montana Average

39.0 years

Rank #44 of 56 in state

National

38.9 years

0.3% above

National Distribution

Where Yellowstone County falls among all 3,222 U.S. counties for median age.

21.4 years 86.2 years

■ Yellowstone County: 39.0 years

Ranking Context

Rank	County	Value
#2,387	Frederick County, MD	39.0 years
#2,388	Carver County, MN	39.0 years
#2,389	Howard County, MO	39.0 years
#2,390	Yellowstone County, MT	39.0 years
#2,391	Washoe County, NV	39.0 years
#2,392	Coffee County, TN	39.0 years
#2,393	Tipton County, TN	39.0 years

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Median Age in Yellowstone County, Montana

Yellowstone County, Montana has a median age of 39.0 years, which ranks #2,390 of 3,222 out of 3,222 counties nationwide. This is 0.3% above the national value of 38.9 years.

Within Montana, Yellowstone County ranks #44 of 56 out of 56 counties. This places it in the 26th percentile nationally.

The median age of the total population. All data comes from the U.S. Census Bureau's American Community Survey (ACS) 5-Year Estimates for 2024.

About this data

Source: U.S. Census Bureau, American Community Survey 5-Year Estimates (2024). All values are estimates derived from survey samples and are subject to margin of error. For more information, see our methodology.