Miamisburg, OH

ZIP code 45342, located in Miamisburg, Ohio, boasts the Miamisburg Mound as a prominent landmark. This prehistoric Native American earthwork is one of the largest conical mounds in the United States and is listed on the National Register of Historic Places. Additionally, the area is home to the Miamisburg Historical Society's Baum Opera House, a historic building that hosts various community events and performances.