Washington State's total wine grape acreage has more than doubled in size in six years, according to the U.S. Dept. of Agriculture's first study of total state vineyard acreage since 1993, the Washington Wine Commission announced today. Total vineyard acreage in Washington State's wine appellations grew from 11,100 acres in 1993 to 24,806 acres in 1999, the USDA report found.