Median Age in Madison County, ID
ACS 2024 5-Year Estimates
21.4 years
Rank #3,222/3,222 · #44 in ID
0th
Madison 21.4 years
ID 37.3 years -42.6%
US 38.9 years -45.0%
Median Age Trend
Rankings →Percentile Rank Over Time
Year-over-Year Age Change
National Distribution
How Madison County's median age of 21.4 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 Madison County for median age.
Nearby Rankings
Full ranking →| #3,219 | Radford city, VA | 23.3 years |
| #3,220 | Buffalo County, SD | 22.8 years |
| #3,221 | Lexington city, VA | 22.6 years |
| #3,222 | Madison County, ID | 21.4 years |
About Median Age
Madison County, Idaho has a median age of 21.4 years, ranking #3,222 of 3,222 counties nationwide — 45.0% below the national value of 38.9 years. Within Idaho, it ranks #44 of 44. This places it in the 0th 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.