West Valley City is a city in Salt Lake County and an inner suburb of Salt Lake City in the U.S. state of Utah. The population was 140,230 at the 2020 census, making it the second-most populous city in Utah after Salt Lake City. The city incorporated in 1980 from a large, quickly growing unincorporated area, combining the four communities of Granger, Hunter, Chesterfield, and Redwood. It is home to the Maverik Center and Utah First Credit Union Amphitheatre.