American Fork is a city in Utah County, Utah, United States, at the foot of Mount Timpanogos in the Wasatch Range, north of Utah Lake. It is part of the ProvoOrem, Utah Metropolitan Statistical Area. The population was 21,941 at the 2000 census, while the 2008 estimates placed it at 27,064. It has been rapidly growing since the 1970s. The area around Utah Lake was used as a seasonal hunting and fishing ground by the Ute Indians. American Fork was settled in 1850 by pioneers, and incorporated as Lake City in 1852.