Allenton, Wisconsin is a small unincorporated census-designated place in the western part of the town of Addison, Wisconsin in Washington County, Wisconsin. It is located on Wisconsin Highway 33 near its intersection with U.S. Route 41, and also on a line of the Canadian National Railway, parent company of the Wisconsin Central Ltd. railroad. Allenton has a post office with ZIP code 53002. As of the 2010 census, its population was 823.
Brooks Stevens Design Associates, a product design firm, is based in Allenton, as is Zuern Building Products, a chain of lumber yards in Wisconsin.
Allenton is located at latitude 43.421 and longitude -88.341. The elevation is 958 feet. Allenton has an area of 1.446 square miles (3.75 km2), all of it land. Allenton appears on the Allenton U.S. Geological Survey Map. Allenton is located in the 262 area code of southeast Wisconsin, and has been assigned the telephone prefix of 629, so that phone numbers in the area begin with 262-629. A notable geographic feature is the Rock River that cuts through the town.