La Grange Park
- County:
- Cook County
- County Seat:
- No
- Area (mi²):
- 2.233
- State:
- Illinois
La Grange Park is a village located in Cook County, Illinois. La Grange Park has a 2026 population of 13,459. La Grange Park is currently growing at a rate of 0.67% annually but its population has decreased by -1.69% since the most recent census, which recorded a population of 13,691 in 2020.