Total Population in Washington County, IL
ACS 2024 5-Year Estimates
How Washington County Compares
National Distribution
Where Washington County falls among all 3,222 U.S. counties for total population.
■ Washington County: 13,627
Ranking Context
| Rank | County | Value |
|---|---|---|
| #2,249 | Morgan County, OH | 13,651 |
| #2,250 | Madison County, TX | 13,648 |
| #2,251 | Glacier County, MT | 13,637 |
| #2,252 | Washington County, IL | 13,627 |
| #2,253 | White County, IL | 13,619 |
| #2,254 | Hamilton County, FL | 13,616 |
| #2,255 | Greene County, MS | 13,615 |
Total Population in Washington County, Illinois
Washington County, Illinois has a total population of 13,627, which ranks #2,252 of 3,222 out of 3,222 counties nationwide. This is 100.0% below the national value of 330M.
Within Illinois, Washington County ranks #76 of 102 out of 102 counties. This places it in the 30th 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.