Superior is a city in, and the county seat of, Douglas County, Wisconsin, United States. The population was 26,751 at the 2020 census. Locat…Superior is a city in, and the county seat of, Douglas County, Wisconsin, United States. The population was 26,751 at the 2020 census. Located at the western end of Lake Superior in northwestern Wisconsin, the city lies at the junction of U.S. Route 2 and U.S. Route 53 immediately north of, and adjacent to, both the Village of Superior and the Town of Superior.
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