Allen, SD

ZIP code 57714 covers the town of Belle Fourche, South Dakota. This area is known for being the geographical center of the United States and is home to notable landmarks such as the Tri-State Museum and Visitor Center, showcasing local history and artifacts, as well as the famous Center of the Nation Monument marking the exact center of the nation. Belle Fourche also hosts the annual Black Hills Roundup Rodeo, a popular event in the community.