Median Age in Knox County, MO
ACS 2024 5-Year Estimates
40.1 years
Rank #2,089/3,222 · #74 in MO
35th
Knox 40.1 years
MO 39.0 years +2.8%
US 38.9 years +3.1%
Median Age Trend
Rankings →Percentile Rank Over Time
Year-over-Year Age Change
National Distribution
How Knox County's median age of 40.1 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 Knox County for median age.
Nearby Rankings
Full ranking →| #2,086 | Winn Parish, LA | 40.1 years |
| #2,087 | Jackson County, MS | 40.1 years |
| #2,088 | Noxubee County, MS | 40.1 years |
| #2,089 | Knox County, MO | 40.1 years |
| #2,090 | Gloucester County, NJ | 40.1 years |
| #2,091 | Rensselaer County, NY | 40.1 years |
| #2,092 | Delaware County, OH | 40.1 years |
About Median Age
Knox County, Missouri has a median age of 40.1 years, ranking #2,089 of 3,222 counties nationwide — 3.1% above the national value of 38.9 years. Within Missouri, it ranks #74 of 115. This places it in the 35th 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.