Norman, Oklahoma is 73% larger than Henderson, Nevada.
Area: 283 km2 calculated
Henderson, officially the City of Henderson, is a city in Clark County, Nevada. It is the second largest city in Nevada, after Las Vegas, with an estimated population of 265,679 in 2012. The city is part of the Las Vegas metropolitan area, which spans the entire Las Vegas Valley. Wikipedia
Area: 491 km2 calculated
Norman is a U.S. city in Oklahoma 20 miles south of downtown Oklahoma City in its metropolitan area. Norman's 118,197 residents make it the third-largest city in Oklahoma by population, and the city serves as the county seat of Cleveland County. Wikipedia