Vancouver, Washington is 12% 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: 126 km2 calculated
Vancouver is a city on the north bank of the Columbia River in the U.S. State of Washington. Incorporated in 1857, it is the fourth largest city in the state, with a 2010 census population of 161,791 as of April 1, 2010 census. Wikipedia