San Jose–San Francisco–Oakland, CA Combined Statistical Area 2017 the San Jose–San Francisco–Oakland CSA had a GDP of $878 billion, which would rank 17th among countries and 5th among states. Among Combined Statistical Areas, the Bay Area is 5th in terms of population, but 3rd in terms of GDP. Silicon Valley, the leading high technology region in the world, is located in Santa Clara County. Major corporations in San Francisco, San Jose, Oakland, and the surrounding cities help make the region second in the nation in concentration of Fortune 500 companies, after New York. The Bay Area's northern counties encompass California's famous Wine Country, home to hundreds of
San Jose, California County, the most affluent county in California and one of the most affluent counties in the United States. San Jose is the most populous city in both the San Francisco Bay Area and the San Jose-San Francisco-Oakland Combined Statistical Area, which contain 7.7 million and 8.7 million people respectively. San Jose is a global city, notable as a center of innovation, for its affluence, Mediterranean climate, and extremely high cost of living. San Jose's location within the booming high tech industry, as a cultural, political, and economic center has earned the city the nickname "Capital of Silicon Valley". San Jose