Oswego village, Illinois
Official LSAD Designation: Oswego village • Census GEOID: 1756887
• Kendall County / Will County
Demographics & Population Profile
Population and demographics for Oswego village.
| Demographic Variable | Estimate / Count | Margin of Error | Period | Source |
|---|---|---|---|---|
| Total Population (2025 PEP Estimate) | 39,948 | — | 2025 | Census |
| Median Age | 38.7 yrs | ±1.3 | 2020-2024 | Census ACS 5-Year 2024 |
| Total Households | 12,243 | ±376 | 2020-2024 | Census ACS 5-Year 2024 |
Source: U.S. Census Bureau (PEP, ACS 5-Year).