Tucson, Arizona is 5.3 times larger than Eugene, Oregon.
Area: 112 km2 calculated
Eugene is a major city of the Pacific Northwest located in the State of Oregon. It is the third-largest city in the state and the county seat of Lane County. Wikipedia
Area: 590 km2 calculated
Tucson is a city in and the county seat of Pima County, Arizona, United States, and home to the University of Arizona. The 2010 United States Census puts the city's population at 520,116, while the 2013 estimated population of the entire Tucson metropolitan area was 996,544. Wikipedia