Mettawa
- County:
- Lake County
- County Seat:
- No
- Area (mi²):
- 5.451
- State:
- Illinois
Mettawa is a village located in Lake County, Illinois. Mettawa has a 2026 population of 562. Mettawa is currently growing at a rate of 2.18% annually and its population has increased by 5.64% since the most recent census, which recorded a population of 532 in 2020.