Brandt, SD

ZIP code 57218 covers the town of Castlewood, South Dakota. Located in Hamlin County, it is home to the Castlewood Dam and Lake, offering recreational activities such as fishing and boating. The town also features Castlewood State Park, known for its scenic trails and camping facilities. With a population of around 700 residents, Castlewood offers a peaceful setting for those seeking a small-town lifestyle in the Midwest.