Cahokia is a city located in St. Clair County, Illinois, in the Midwest region of the United States. It is a historic area that was once home to the ancient Mississippian culture, known for its large earthen mounds and complex social structure. The city is named after the Cahokia tribe, who inhabited the area before European settlement. Today, Cahokia is a small, suburban community with a rich history and a strong sense of community. The city is home to several parks and recreational areas, as well as a number of historic sites and museums that showcase the area's Native American heritage. The nearby Cahokia Mounds State Historic Site is a UNESCO World Heritage site and is a popular destination for tourists and history enthusiasts.