Flat Rock village, Illinois
Official LSAD Designation: Flat Rock village • Census GEOID: 1726350
• Crawford County
Demographics & Population Profile
Population and demographics for Flat Rock village.
| Demographic Variable | Estimate / Count | Margin of Error | Period | Source |
|---|---|---|---|---|
| Total Population (2025 PEP Estimate) | 322 | — | 2025 | Census |
| Median Age | 41.5 yrs | ±18.3 | 2020-2024 | Census ACS 5-Year 2024 |
| Total Households | 146 | ±45 | 2020-2024 | Census ACS 5-Year 2024 |
Source: U.S. Census Bureau (PEP, ACS 5-Year).