Median Age in Decatur County, TN
ACS 2024 5-Year Estimates
45.8 years
Rank #626/3,222 · #18 in TN
81th
Decatur 45.8 years
TN 38.9 years +17.7%
US 38.9 years +17.7%
Median Age Trend
Rankings →Percentile Rank Over Time
Year-over-Year Age Change
National Distribution
How Decatur County's median age of 45.8 years compares to all 3,222 U.S. counties. Values range from 21.4 years to 86.2 years.
Distribution of Median Age Across All Counties
Ranking Context
Counties ranked closest to Decatur County for median age.
Nearby Rankings
Full ranking →| #623 | Powell County, MT | 45.8 years |
| #624 | McPherson County, NE | 45.8 years |
| #625 | Schoharie County, NY | 45.8 years |
| #626 | Decatur County, TN | 45.8 years |
| #627 | Henry County, TN | 45.8 years |
| #628 | Powhatan County, VA | 45.8 years |
| #629 | Juneau County, WI | 45.8 years |
About Median Age
Decatur County, Tennessee has a median age of 45.8 years, ranking #626 of 3,222 counties nationwide — 17.7% above the national value of 38.9 years. Within Tennessee, it ranks #18 of 95. This places it in the 81th percentile nationally.
The median age of the total population. Source: U.S. Census Bureau, American Community Survey 2024 5-Year Estimates. All values are estimates derived from survey samples and are subject to margin of error. For more information, see our methodology.