Median Age in Washington County, IL
ACS 2024 5-Year Estimates
How Washington County Compares
National Distribution
Where Washington County falls among all 3,222 U.S. counties for median age.
■ Washington County: 44.2 years
Ranking Context
| Rank | County | Value |
|---|---|---|
| #883 | St. Johns County, FL | 44.2 years |
| #884 | Gem County, ID | 44.2 years |
| #885 | Macoupin County, IL | 44.2 years |
| #886 | Washington County, IL | 44.2 years |
| #887 | Kossuth County, IA | 44.2 years |
| #888 | Edwards County, KS | 44.2 years |
| #889 | Jefferson County, KS | 44.2 years |
Median Age in Washington County, Illinois
Washington County, Illinois has a median age of 44.2 years, which ranks #886 of 3,222 out of 3,222 counties nationwide. This is 13.6% above the national value of 38.9 years.
Within Illinois, Washington County ranks #27 of 102 out of 102 counties. This places it in the 73th 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.