Median Age in Knox County, IL
ACS 2024 5-Year Estimates
How Knox County Compares
National Distribution
Where Knox County falls among all 3,222 U.S. counties for median age.
■ Knox County: 42.6 years
Ranking Context
| Rank | County | Value |
|---|---|---|
| #1,313 | Dodge County, GA | 42.6 years |
| #1,314 | Clark County, IL | 42.6 years |
| #1,315 | Crawford County, IL | 42.6 years |
| #1,316 | Knox County, IL | 42.6 years |
| #1,317 | Pulaski County, IN | 42.6 years |
| #1,318 | Winneshiek County, IA | 42.6 years |
| #1,319 | Magoffin County, KY | 42.6 years |
Median Age in Knox County, Illinois
Knox County, Illinois has a median age of 42.6 years, which ranks #1,316 of 3,222 out of 3,222 counties nationwide. This is 9.5% above the national value of 38.9 years.
Within Illinois, Knox County ranks #52 of 102 out of 102 counties. This places it in the 59th 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.