Orem is a city in Utah County, Utah, United States, in the north-central part of the state. It is adjacent to Provo, Lindon, and Vineyard and is about 45 miles (72 km) south of Salt Lake City. Orem is one of the principal cities of the Provo-Orem, Utah Metropolitan Statistical Area, which includes all of Utah and Juab counties. The population was 84,324 at the 2000 census, while the 2010 population was 88,328 making it the fifth-largest city in Utah. Utah Valley University is located in Orem.