Total Population in Shelby County, IL
ACS 2024 5-Year Estimates
How Shelby County Compares
National Distribution
Where Shelby County falls among all 3,222 U.S. counties for total population.
■ Shelby County: 20,720
Ranking Context
| Rank | County | Value |
|---|---|---|
| #1,836 | Nodaway County, MO | 20,774 |
| #1,837 | Texas County, OK | 20,774 |
| #1,838 | Buena Vista County, IA | 20,753 |
| #1,839 | Shelby County, IL | 20,720 |
| #1,840 | Buchanan County, IA | 20,694 |
| #1,841 | Kewaunee County, WI | 20,664 |
| #1,842 | Uinta County, WY | 20,644 |
Total Population in Shelby County, Illinois
Shelby County, Illinois has a total population of 20,720, which ranks #1,839 of 3,222 out of 3,222 counties nationwide. This is 100.0% below the national value of 330M.
Within Illinois, Shelby County ranks #56 of 102 out of 102 counties. This places it in the 43th 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.