San Jose is the largest city in Northern California. With an estimated 2017 population of 1,035,317, it is the third most populous city in California (after Los Angeles and San Diego) and the tenth most populous in United States. an 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". Major global tech companies including Cisco Systems, eBay, Cadence Design Systems, Adobe Systems, PayPal, Brocade, Samsung, Acer, and Western Digital maintain their headquarters in San Jose, in the center of Silicon Valley.