Naperville city, Illinois
Official LSAD Designation: Naperville city • Census GEOID: 1751622
• DuPage County / Will County
Demographics & Population Profile
Population and demographics for Naperville city.
| Demographic Variable | Estimate / Count | Margin of Error | Period | Source |
|---|---|---|---|---|
| Total Population (2025 PEP Estimate) | 153,114 | — | 2025 | Census |
| Median Age | 40.4 yrs | ±0.9 | 2020-2024 | Census ACS 5-Year 2024 |
| Total Households | 54,847 | ±833 | 2020-2024 | Census ACS 5-Year 2024 |
Source: U.S. Census Bureau (PEP, ACS 5-Year).