Winston-Salem, North Carolina is 3.8 times larger than West Valley City, Utah.
Area: 92 km2 calculated
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. Wikipedia
Area: 348 km2 calculated
Winston-Salem is a city in and the county seat of Forsyth County, North Carolina, United States. With a 2013 estimated population of 236,441, it is the second largest municipality in the Piedmont Triad region and the fourth largest city in the state. Wikipedia