Spokane is a city located in the state of Washington in the northwestern United States. It is located along the Spokane River west of the Rocky Mountain foothills in eastern Washington, south of the Canada–US border, approximately 20mi from the Washington–Idaho border, and east of Seattle along Interstate 90.Known as the birthplace of Father's Day, Spokane is officially nicknamed the "Lilac City". It is the seat of Spokane County and the economic and cultural center of the Spokane Metropolitan Area, the Greater Spokane Area, and the Inland Northwest. The city, along with the whole Inland Northwest, is served by Spokane International Airport, 5mi west of downtown Spokane. According to the 2010 Census, Spokane had a population of 208,916, making it the second largest city in Washington and the 102nd largest city in the United States. It is also the third largest urban area in the Pacific Northwest (after Seattle and Portland).