The San Francisco Bay Area (referred to locally as the Bay Area) is a populous region surrounding the San Francisco, San Pablo and Suisun estuaries in California. Although the exact boundaries of the region vary depending on the source, the Bay Area is generally accepted to include the nine counties that border the aforementioned estuaries: Alameda, Contra Costa, Marin, Napa, San Francisco, San Mateo, Santa Clara, Solano, and Sonoma. Other sources may exclude parts of or even entire counties, or include neighboring counties such as San Benito, San Joaquin, and Santa Cruz. Among locals, the nine-county Bay Area can be divided into five sub-regions: the East Bay, North Bay, South Bay, Peninsula, and the city of San Francisco. Although geographically located on the tip of the San Francisco Peninsula, the city of San Francisco is not considered part of the “Peninsula” subregion, but as a separate entity. San Jose is the largest city in the Bay Area, while San Francisco is clearly the culturally dominant one. read more…
Silicon Valley is the southern region of the San Francisco Bay Area in Northern California. The region, whose name derives from the Santa Clara Valley in which it is centered, is home to many of the world’s largest technology corporations as well as thousands of small startups. The term originally referred to the region’s large number of silicon chip innovators and manufacturers, but eventually came to refer to all the high-tech businesses in the area; it is now generally used as a metonym for the American high-tech sector. Despite the development of other high-tech economic centers throughout the United States and the world, Silicon Valley continues to be the leading hub for high-tech innovation and development, accounting for one-third (1/3) of all of the venture capital investment in the United States. Geographically, the Silicon Valley encompasses all of the Santa Clara Valley including the city of San Jose, the southern Peninsula Valley, and the southern East Bay. However, with the rapid growth of technology jobs in the San Francisco Metropolitan area, the traditional boundaries of Silicon Valley have expanded North to include the rest of San Mateo County, San Francisco County as well as parts of Marin County. read more…