Atlas Science Center

Appleton (Menominee: Ahkōnemeh) is a city, and the county seat of Outagamie County, Wisconsin, United States, with small portions extending into Calumet and Winnebago counties. Located on the Fox River north of Lake Winnebago, it is 30 miles (48 km) southwest of Green Bay and 100 miles (160 km) north of Milwaukee. The city had a population of 75,644 at the 2020 census, making it the sixth-most populous city in Wisconsin. The Appleton metropolitan statistical area had 243,147 residents. Appleton is part of the broader Fox Cities region.

Appleton was founded in the mid-19th century and developed as an industrial and educational center; Lawrence University was established in 1847. Its economy was historically based on paper manufacturing and has since expanded to include retail and healthcare sectors, with major facilities including St. Elizabeth Hospital and ThedaCare Regional Medical Center–Appleton. The city serves as a cultural center for the Fox River Valley, home to the Fox Cities Performing Arts Center and the History Museum at the Castle, which features exhibits on local history and notable residents such as magician Harry Houdini. It also hosts regional events such as Octoberfest and the Mile of Music.