Total Population in Union County, IL
ACS 2024 5-Year Estimates
16,997
Rank #2,036/3,222 · #61 in IL
37th
Union 16,997
IL 13M -99.9%
US 330M
Total Population Trend
Rankings →Percentile Rank Over Time
Year-over-Year Population Change
National Distribution
How Union County's total population of 16,997 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 Union County for total population.
Nearby Rankings
Full ranking →| #2,033 | Dixie County, FL | 17,058 |
| #2,034 | Drew County, AR | 17,046 |
| #2,035 | Clayton County, IA | 17,013 |
| #2,036 | Union County, IL | 16,997 |
| #2,037 | Pitkin County, CO | 16,985 |
| #2,038 | Buckingham County, VA | 16,976 |
| #2,039 | Mason County, KY | 16,956 |
About Total Population
Union County, Illinois has a total population of 16,997, ranking #2,036 of 3,222 counties nationwide — 100.0% below the national value of 330M. Within Illinois, it ranks #61 of 102. This places it in the 37th 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.