Alpine is a city in Utah County, Utah, United States. It is part of the Provo–Orem, Utah Metropolitan Statistical Area. The population was 9,555 at the 2010 census. Alpine has been one of the many quickly-growing cities of Utah since the 1970s, and especially the 1990s. It is located on the slopes of the Wasatch Range north of Highland and American Fork. The west side of the city runs above the Wasatch Fault.