Median Age in McLean County, IL
ACS 2024 5-Year Estimates
How McLean County Compares
National Distribution
Where McLean County falls among all 3,222 U.S. counties for median age.
■ McLean County: 34.3 years
Ranking Context
| Rank | County | Value |
|---|---|---|
| #3,009 | Beaver County, UT | 34.4 years |
| #3,010 | Millard County, UT | 34.4 years |
| #3,011 | Newport News city, VA | 34.4 years |
| #3,012 | McLean County, IL | 34.3 years |
| #3,013 | Wyandotte County, KS | 34.3 years |
| #3,014 | Lancaster County, NE | 34.3 years |
| #3,015 | Doña Ana County, NM | 34.3 years |
Median Age in McLean County, Illinois
McLean County, Illinois has a median age of 34.3 years, which ranks #3,012 of 3,222 out of 3,222 counties nationwide. This is 11.8% below the national value of 38.9 years.
Within Illinois, McLean County ranks #99 of 102 out of 102 counties. This places it in the 7th 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.