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
La Casa Primera de Rancho San Jose families, and a staged wedding ceremony with the principals and guests dressed in period costume. The site was added to the National Register of Historic Places in 1975. The building is operated as a museum by the Historical Society of Pomona Valley. La Casa Primera de Rancho San Jose La Casa Primera de Rancho San Jose is a historic adobe structure built in 1837 in Pomona, California. It is the oldest home located in the Pomona Valley and in the old Rancho San Jose land grant. It was declared a historic landmark in 1954 and added to the National Register