Rock Springs, WI

ZIP code 53961 serves Waupun, Wisconsin, which spans parts of Fond du Lac and Dodge counties. Notable landmarks include Waupun Correctional Institution, the Waupun Heritage Museum, and the city’s outdoor sculpture collection, developed largely through the efforts of local sculptor Clarence Shaler. One well-known work is “The Rock,” a large granite boulder displayed downtown. Waupun is also known as the “City of Sculpture.”