Total Population in Mason County, IL
ACS 2024 5-Year Estimates
12,745
Rank #2,302/3,222 · #82 in IL
29th
Mason 12,745
IL 13M -99.9%
US 330M
Total Population Trend
Rankings →Percentile Rank Over Time
Year-over-Year Population Change
National Distribution
How Mason County's total population of 12,745 compares to all 3,222 U.S. counties. Values range from 33 to 9,808,667.
Distribution of Total Population Across All Counties
Ranking Context
Counties ranked closest to Mason County for total population.
Nearby Rankings
Full ranking →| #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 |
About Total Population
Mason County, Illinois has a total population of 12,745, ranking #2,302 of 3,222 counties nationwide — 100.0% below the national value of 330M. Within Illinois, it ranks #82 of 102. This places it in the 29th percentile nationally.
Total population count from the American Community Survey. 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.