Aurora
- County:
- DuPage County
- County Seat:
- No
- Area (mi²):
- 45.247
- State:
- Illinois
Aurora is a city located in DuPage County, Illinois. Aurora has a 2026 population of 180,710. Aurora is currently growing at a rate of 0.58% annually and its population has increased by 0.25% since the most recent census, which recorded a population of 180,260 in 2020.