Lockport city, Illinois
Official LSAD Designation: Lockport city • Census GEOID: 1744225
• Will County
Demographics & Population Profile
Population and demographics for Lockport city.
| Demographic Variable | Estimate / Count | Margin of Error | Period | Source |
|---|---|---|---|---|
| Total Population (2025 PEP Estimate) | 27,822 | — | 2025 | Census |
| Median Age | 38.5 yrs | ±1.7 | 2020-2024 | Census ACS 5-Year 2024 |
| Total Households | 9,903 | ±334 | 2020-2024 | Census ACS 5-Year 2024 |
Source: U.S. Census Bureau (PEP, ACS 5-Year).