East San Jose 1911. The 1910 US Census recorded a population of 1,661. Before World War II, East San Jose was a small section of San Jose located on the east banks of the Guadalupe River and west of today's U.S. Route 101. After World War II, the area saw rapid development, along with much of the Santa Clara Valley. East San Jose East San Jose (or East Valley or The Eastside) is the eastern San Jose, California in Silicon Valley, comprising several neighborhoods and including a former city of that name. The area is bounded roughly by Berryessa Rd to the north,
San Jose, California Adobe Systems, PayPal, Brocade, Samsung, Acer, Hewlett Packard Enterprise, and Western Digital maintain their headquarters in San Jose, in the center of Silicon Valley. Before the arrival of the Spanish, the area around San Jose was inhabited by the Tamien nation of the Ohlone peoples of California. San Jose was founded on November 29, 1777, as the "Pueblo de San José de Guadalupe", the first city founded in the Californias. It then became a part of Mexico in 1821 after the Mexican War of Independence. Following the American Conquest of California during the Mexican–American War, the territory was ceded to