Lanark city, Illinois
Official LSAD Designation: Lanark city • Census GEOID: 1741859
• Carroll County
Demographics & Population Profile
Population and demographics for Lanark city.
| Demographic Variable | Estimate / Count | Margin of Error | Period | Source |
|---|---|---|---|---|
| Total Population (2025 PEP Estimate) | 1,452 | — | 2025 | Census |
| Median Age | 38.4 yrs | ±3.9 | 2020-2024 | Census ACS 5-Year 2024 |
| Total Households | 702 | ±115 | 2020-2024 | Census ACS 5-Year 2024 |
Source: U.S. Census Bureau (PEP, ACS 5-Year).