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 129,480 at the 2010 census, making it the second-largest city in Utah. The city incorporated in 1980 from a large, quickly growing unincorporated area, which was variously known as Granger, Hunter, Chesterfield, and Redwood. It is home to the Maverik Center and USANA Amphitheatre.

According to the United States Census Bureau, the city has a total area of 35.5 square miles (91.8 km²) of which 35.4 square miles (91.7 km²) is land and 0.1 square miles (0.2 km²) (0.17%) is water.

West Valley is located on the northwest side of the Salt Lake Valley between Salt Lake City on the north, South Salt Lake on the east, Magna Township on the west, and Taylorsville and Kearns Township on the south. The Oquirrh Mountains loom over the city to the west, while the Jordan River marks the eastern boundary.

According to estimates from the U.S. Census Bureau, as of 2017, there were 136,170 people in West Valley City. The racial makeup of the county was 46.8% non-Hispanic White, 2.4% Black, 1.0% Native American, 5.5% Asian, 4.4% Pacific Islander, and 4.3% from two or more races. 37.7% of the population were Hispanic or Latino of any race.