Median Age in Jefferson County, MT
ACS 2024 5-Year Estimates
How Jefferson County Compares
National Distribution
Where Jefferson County falls among all 3,222 U.S. counties for median age.
■ Jefferson County: 47.1 years
Ranking Context
| Rank | County | Value |
|---|---|---|
| #455 | Northwest Hills Planning Region, CT | 47.1 years |
| #456 | Taliaferro County, GA | 47.1 years |
| #457 | Lyon County, KY | 47.1 years |
| #458 | Jefferson County, MT | 47.1 years |
| #459 | Avery County, NC | 47.1 years |
| #460 | Hyde County, NC | 47.1 years |
| #461 | McIntosh County, OK | 47.1 years |
Median Age in Jefferson County, Montana
Jefferson County, Montana has a median age of 47.1 years, which ranks #458 of 3,222 out of 3,222 counties nationwide. This is 21.1% above the national value of 38.9 years.
Within Montana, Jefferson County ranks #19 of 56 out of 56 counties. This places it in the 86th 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.