Total Population in Madison County, IL
ACS 2024 5-Year Estimates
How Madison County Compares
National Distribution
Where Madison County falls among all 3,222 U.S. counties for total population.
■ Madison County: 264,238
Ranking Context
| Rank | County | Value |
|---|---|---|
| #271 | Forsyth County, GA | 267,287 |
| #272 | McLennan County, TX | 266,067 |
| #273 | Santa Cruz County, CA | 264,926 |
| #274 | Madison County, IL | 264,238 |
| #275 | Harford County, MD | 263,757 |
| #276 | Kalamazoo County, MI | 262,375 |
| #277 | Williamson County, TN | 260,351 |
Total Population in Madison County, Illinois
Madison County, Illinois has a total population of 264,238, which ranks #274 of 3,222 out of 3,222 counties nationwide. This is 99.9% below the national value of 330M.
Within Illinois, Madison County ranks #8 of 102 out of 102 counties. This places it in the 92th 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.