Wilmette
- County:
- Cook County
- County Seat:
- No
- Area (mi²):
- 5.401
- State:
- Illinois
Wilmette is a village located in Cook County, Illinois. Wilmette has a 2026 population of 27,443. Wilmette is currently growing at a rate of 0.73% annually but its population has decreased by -2.26% since the most recent census, which recorded a population of 28,077 in 2020.