Median Age in Williamson County, IL
ACS 2024 5-Year Estimates
How Williamson County Compares
National Distribution
Where Williamson County falls among all 3,222 U.S. counties for median age.
■ Williamson County: 41.6 years
Ranking Context
| Rank | County | Value |
|---|---|---|
| #1,613 | Peñuelas Municipio, PR | 41.7 years |
| #1,614 | Desha County, AR | 41.6 years |
| #1,615 | Glascock County, GA | 41.6 years |
| #1,616 | Williamson County, IL | 41.6 years |
| #1,617 | Parke County, IN | 41.6 years |
| #1,618 | Jackson Parish, LA | 41.6 years |
| #1,619 | Chippewa County, MI | 41.6 years |
Median Age in Williamson County, Illinois
Williamson County, Illinois has a median age of 41.6 years, which ranks #1,616 of 3,222 out of 3,222 counties nationwide. This is 6.9% above the national value of 38.9 years.
Within Illinois, Williamson County ranks #61 of 102 out of 102 counties. This places it in the 50th 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.