Oswego
- County:
- Kendall County
- County Seat:
- No
- Area (mi²):
- 16.213
- State:
- Illinois
Oswego is a village located in Kendall County, Illinois. Oswego has a 2026 population of 38,778. Oswego is currently growing at a rate of 4.58% annually and its population has increased by 11.61% since the most recent census, which recorded a population of 34,744 in 2020.