West Valley City is a city in Salt Lake County and a 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 USANA Amphitheatre.