Total Population in Mason County, IL
ACS 2024 5-Year Estimates
How Mason County Compares
National Distribution
Where Mason County falls among all 3,222 U.S. counties for total population.
■ Mason County: 12,745
Ranking Context
| Rank | County | Value |
|---|---|---|
| #2,299 | Rains County, TX | 12,775 |
| #2,300 | Jefferson County, MT | 12,774 |
| #2,301 | Kodiak Island Borough, AK | 12,771 |
| #2,302 | Mason County, IL | 12,745 |
| #2,303 | Madison County, MO | 12,729 |
| #2,304 | Reeves County, TX | 12,664 |
| #2,305 | Poquoson city, VA | 12,639 |
Total Population in Mason County, Illinois
Mason County, Illinois has a total population of 12,745, which ranks #2,302 of 3,222 out of 3,222 counties nationwide. This is 100.0% below the national value of 330M.
Within Illinois, Mason County ranks #82 of 102 out of 102 counties. This places it in the 29th percentile nationally.
Total population count from the American Community Survey. 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.