Summit County is a county in the U.S. state of Utah, occupying a rugged and mountainous area. As of the 2020 United States Census, the population was 42,357. Its county seat is Coalville, and the largest city is Park City.

The Heber Micropolitan Statistical Area, as defined by the United States Office of Management and Budget, is an area consisting of two counties in Utah. It is part of the Salt Lake City–Provo–Orem combined statistical area, along with the Salt Lake City metropolitan area, Ogden–Clearfield metropolitan area, and Provo–Orem metropolitan area.