Lemont village, Illinois
Official LSAD Designation: Lemont village • Census GEOID: 1742795
• Cook County / DuPage County / Will County
Demographics & Population Profile
Population and demographics for Lemont village.
| Demographic Variable | Estimate / Count | Margin of Error | Period | Source |
|---|---|---|---|---|
| Total Population (2025 PEP Estimate) | 18,513 | — | 2025 | Census |
| Median Age | 43.7 yrs | ±0.8 | 2020-2024 | Census ACS 5-Year 2024 |
| Total Households | 6,412 | ±321 | 2020-2024 | Census ACS 5-Year 2024 |
Source: U.S. Census Bureau (PEP, ACS 5-Year).