Total Population in Jefferson County, IL
ACS 2024 5-Year Estimates
36,550
Rank #1,304/3,222 · #38 in IL
60th
Jefferson 36,550
IL 13M -99.7%
US 330M
Total Population Trend
Rankings →Percentile Rank Over Time
Year-over-Year Population Change
National Distribution
How Jefferson County's total population of 36,550 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 Jefferson County for total population.
Nearby Rankings
Full ranking →| #1,301 | Wasatch County, UT | 36,642 |
| #1,302 | Graves County, KY | 36,630 |
| #1,303 | Escambia County, AL | 36,629 |
| #1,304 | Jefferson County, IL | 36,550 |
| #1,305 | Carlton County, MN | 36,518 |
| #1,306 | Dyer County, TN | 36,508 |
| #1,307 | Alexander County, NC | 36,412 |
About Total Population
Jefferson County, Illinois has a total population of 36,550, ranking #1,304 of 3,222 counties nationwide — 100.0% below the national value of 330M. Within Illinois, it ranks #38 of 102. This places it in the 60th 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.