Seattle is 2.1 times larger than Vancouver, Washington.
Area: 259 km2 calculated
Seattle is a coastal seaport city and the seat of King County, in the U.S. state of Washington. With an estimated 652,405 residents as of 2013, Seattle is the largest city in the Pacific Northwest region of North America and the fastest-growing major city in the United States. 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