Eagle Mountain is a city in Utah County, Utah. It is part of the Provo–Orem metropolitan area. The city is located to the west as well as north of the Lake Mountains, which are west of Utah Lake. It was incorporated in December 1996 and is rapidly growing. The population was 43,623 at the 2020 census. Eagle Mountain was a town in 2000. It has since been classified as a third-class city in September 2001. In its short history, the city has become known for its rapid growth.