Median Age in Marion County, MO
ACS 2024 5-Year Estimates
39.6 years
Rank #2,235/3,222 · #81 in MO
31th
Marion 39.6 years
MO 39.0 years +1.5%
US 38.9 years +1.8%
Median Age Trend
Rankings →Percentile Rank Over Time
Year-over-Year Age Change
National Distribution
How Marion County's median age of 39.6 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 Marion County for median age.
Nearby Rankings
Full ranking →| #2,232 | Copiah County, MS | 39.6 years |
| #2,233 | Humphreys County, MS | 39.6 years |
| #2,234 | Rankin County, MS | 39.6 years |
| #2,235 | Marion County, MO | 39.6 years |
| #2,236 | Pike County, MO | 39.6 years |
| #2,237 | Pierce County, NE | 39.6 years |
| #2,238 | Monroe County, NY | 39.6 years |
About Median Age
Marion County, Missouri has a median age of 39.6 years, ranking #2,235 of 3,222 counties nationwide — 1.8% above the national value of 38.9 years. Within Missouri, it ranks #81 of 115. This places it in the 31th 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.