Saint Charles is a city located in the state of Missouri, situated along the Mississippi River. It is known for its rich history, including its role in the westward expansion of the United States. The city features a charming historic district with preserved buildings and various shops and restaurants. The city is also home to Saint Charles County, which offers recreational activities such as parks and trails. Additionally, Saint Charles hosts several annual events and festivals that celebrate its heritage and community spirit, making it a vibrant place for residents and visitors alike.