Lake Saint Louis is a planned community located in St. Charles County, Missouri. It features a large, man-made lake that offers recreational activities such as boating, fishing, and swimming. The community is designed with residential neighborhoods, parks, and amenities that cater to families and outdoor enthusiasts. The lake itself spans approximately 300 acres and is surrounded by scenic views and walking trails. Lake Saint Louis is known for its friendly atmosphere and community events, making it a popular destination for both residents and visitors. The area also provides access to local shops, schools, and services.