Yakima (yăkˈəmô, –mə) [key], city (1990 pop. 54,827), seat of Yakima co., S central Wash., on the Yakima River just below its confluence with the Naches; inc. 1886. It is the trade and shipping center of an extensive, irrigated agricultural valley noted for its mint, grapes, apples, and hops. It has several fruit canneries and plants that manufacture lumber products, plastics, chemicals, aircraft parts, small arms, and agricultural equipment. The Central Washington State Fair is held in Yakima, and a state fish hatchery is there. The city is also a gateway to Mount Rainier National Park.