West Jordan is a city in Salt Lake County, Utah, United States. It is a suburb of Salt Lake City. According to the 2020 Census, the city had a population of 116,961, placing it as the third most populous in the state. The city occupies the southwest end of the Salt Lake Valley at an elevation of 4,330 feet (1,320 m). Named after the nearby Jordan River, the limits of the city begin on the river's western bank and end in the eastern foothills of the Oquirrh Mountains, where Kennecott Copper Mine, the world's largest man-made excavation, is located.

Salt Lake County is located in the U.S. state of Utah. As of the 2020 United States census, the population was 1,185,238, making it the most populous county in Utah. Its county seat and largest city is Salt Lake City, the state capital. The county was created in 1850. Salt Lake County is the 37th most populated county in the United States and is one of four counties in the Rocky Mountains to make it into the top 100. Salt Lake County has been the only county of the first class in Utah – under the Utah Code is a county with a population of 700,000 or greater. Although, Utah County directly to the south has recently reached this threshold.