The Wine Country has undergone a boom in tourism. In 1975 there were only 25 Napa Valley wineries;[18] today there are well over 400 wineries in Napa and Sonoma Counties alone.[2] Tourists come to the region not only for wine tasting, but also for hiking, bicycling, hot air ballooning, and historic sites, as well as the extensive culinary choices. Numerous notable chefs and restaurateurs are present in the Wine Country, including Thomas Keller, John Ash, and Sondra Bernstein.[19] Besides the obvious winery attractions, the Wine Country is known for the Sonoma County coastline along the Pacific Ocean, the Russian River valley, redwoods, hot spring baths, petrified forests and other natural areas.

Northern California Wine Country is made up of may Counties and cities: