There are 13 major wine producing areas in Washington, known as American Vitcultural Areas (AVA), as defined by the US Bureau of Alcohol, Tobacco and Firearms. They are: Yakima Valley, Washington's first AVA, designated in 1983; Walla Walla Valley in1984; Columbia Valley, designated in1984, is Washington' largest appellation; Puget Sound in1995; Red Mountian in 2001; Columbia Gorge in 2004 and Horse Heaven Hills in 2005; Wahluke Slope and Rattlesnake Hills 2006; Snipes Mountain 2009; Naches Heights 2011and Ancient Lakes of Columbia Valley 2012
Spokane's moderate climate isn't condusive to commercial wine grape growing, so most wineries get their grapes from other areas in the state.
There are 50,000+ acres of wine grapes, with wine production at 20.1 million gallons in 2010.
Bringing Washington state a total economic impact of $8.6 Billion.