Potosi, WI

ZIP code 53820 is located in the small town of Cassville, Wisconsin. This rural area is known for its scenic beauty, situated along the Mississippi River. One of the most important landmarks in this ZIP code is Nelson Dewey State Park, offering hiking trails and stunning views of the river. Other notable attractions include the Cassville Car Ferry, which provides transportation across the river, and the Cassville Historic District, showcasing well-preserved 19th-century architecture.