Median Age in Douglas County, IL
ACS 2024 5-Year Estimates
38.7 years
Rank #2,438/3,222 · #90 in IL
24th
Douglas 38.7 years
IL 39.0 years -0.8%
US 38.9 years -0.5%
Median Age Trend
Rankings →Percentile Rank Over Time
Year-over-Year Age Change
National Distribution
How Douglas County's median age of 38.7 years compares to all 3,222 U.S. counties. Values range from 21.4 years to 86.2 years.
Distribution of Median Age Across All Counties
Ranking Context
Counties ranked closest to Douglas County for median age.
Nearby Rankings
Full ranking →| #2,435 | Chilton County, AL | 38.7 years |
| #2,436 | Independence County, AR | 38.7 years |
| #2,437 | Ben Hill County, GA | 38.7 years |
| #2,438 | Douglas County, IL | 38.7 years |
| #2,439 | Grant County, IN | 38.7 years |
| #2,440 | Vanderburgh County, IN | 38.7 years |
| #2,441 | Bath County, KY | 38.7 years |
About Median Age
Douglas County, Illinois has a median age of 38.7 years, ranking #2,438 of 3,222 counties nationwide — 0.5% below the national value of 38.9 years. Within Illinois, it ranks #90 of 102. This places it in the 24th percentile nationally.
The median age of the total population. Source: U.S. Census Bureau, American Community Survey 2024 5-Year Estimates. All values are estimates derived from survey samples and are subject to margin of error. For more information, see our methodology.