Median Age in Peoria County, IL
ACS 2024 5-Year Estimates
How Peoria County Compares
National Distribution
Where Peoria County falls among all 3,222 U.S. counties for median age.
■ Peoria County: 38.1 years
Ranking Context
| Rank | County | Value |
|---|---|---|
| #2,557 | Escambia County, FL | 38.1 years |
| #2,558 | Jackson County, GA | 38.1 years |
| #2,559 | Gooding County, ID | 38.1 years |
| #2,560 | Peoria County, IL | 38.1 years |
| #2,561 | Jefferson Davis Parish, LA | 38.1 years |
| #2,562 | Somerset County, MD | 38.1 years |
| #2,563 | Prentiss County, MS | 38.1 years |
Median Age in Peoria County, Illinois
Peoria County, Illinois has a median age of 38.1 years, which ranks #2,560 of 3,222 out of 3,222 counties nationwide. This is 2.1% below the national value of 38.9 years.
Within Illinois, Peoria County ranks #94 of 102 out of 102 counties. This places it in the 21th 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.