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 Hills with its new Galster Park Nature Center operated by the San Gabriel Mountains Regional Conservancy and of Walnut Woodland. The southern slope is West Covina's newest development, Big League Dreams. This mega-sports complex was built on top of a superfund site, the old BKK landfill. San Jose Hills The San Jose Hills are a part of the Transverse Ranges located in Eastern Los Angeles County, California, marking the border between the San Gabriel Valley and the Pomona Valley. It includes portions of Covina, West Covina, Walnut, Pomona, and San Dimas. To the south, the valley of San Jose Creek (a