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. Vancouver is the county seat of Clark County and forms part of the Portland-Vancouver metropolitan area, the 23rd-largest metropolitan area in the United States. In 2005, Money magazine named it No. 91 on its list of best places in America to live.