According to the United States Census Bureau, the city of Superior has a total area of 55.4 square miles (143.6 km²), of which, 36.9 square miles (95.7 km²) of it is land and 18.5 square miles (47.9 km²) of it (33.36%) is water. [show location on an interactive map] 46°42'48?N 92°05'16?W? / ?46.713385, -92.087746)There are several parks in the city, including the second largest municipal forest in the United States. Pattison State Park is a short distance south of the city, and contains Big Manitou Falls, the highest waterfall in the state at 165 feet.
Superior has a population of 27,368 and is the largest municipality in Douglas County, which has a total population of 43,708. It is situated in a metropolitan area that includes the 86,918 residents of Duluth, Minnesota, just across the St. Louis Bay. The transportation industry is robust and accounts for more than 1,000 jobs. The Duluth-Superior port is the largest in the Great Lakes and welcomes both domestic and foreign vessels. In 2004, the port’s busiest year since 1979, more than 41.4 million metric tons were shipped out of the port. Shipments are on the increase, railroads are busy, and trucking firms are hiring, exploring new markets and investing in warehousing in Douglas County. Growing area manufacturers include FenTech, Inc., a company dealing with vinyl manipulation and fenestration, Charter Films, a producer of plastic films, Genesis Attachments, manufacturer of shears and grapples, and Amsoil, a producer of synthetic motor oil and lubricants. Crane Song LTD, a producer, manufacturer of Discrete Class A electronics, for recording studios, touring Sound Reinforcement Companies (PA companies).