Median Age in Cass County, IL
ACS 2024 5-Year Estimates
38.3 years
Rank #2,522/3,222 · #92 in IL
22th
Cass 38.3 years
IL 39.0 years -1.8%
US 38.9 years -1.5%
Median Age Trend
Rankings →Percentile Rank Over Time
Year-over-Year Age Change
National Distribution
How Cass County's median age of 38.3 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 Cass County for median age.
Nearby Rankings
Full ranking →| #2,519 | Emanuel County, GA | 38.3 years |
| #2,520 | Evans County, GA | 38.3 years |
| #2,521 | Wayne County, GA | 38.3 years |
| #2,522 | Cass County, IL | 38.3 years |
| #2,523 | Grundy County, IL | 38.3 years |
| #2,524 | Iberia Parish, LA | 38.3 years |
| #2,525 | Nicollet County, MN | 38.3 years |
About Median Age
Cass County, Illinois has a median age of 38.3 years, ranking #2,522 of 3,222 counties nationwide — 1.5% below the national value of 38.9 years. Within Illinois, it ranks #92 of 102. This places it in the 22th 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.