Not to be confused with Vancouver, British Columbia, CanadaVancouver 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 an 2010 census population of 161,791 as of April 1, 2010. 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.

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