Sunnyvale, California

Sunnyvale is a city in the Santa Clara Valley, in northwestern Santa Clara County, California, in the United States. It lies along the historic El Camino Real and Highway 101 and is bordered by San Francisco Bay to the north, with Mountain View, Los Altos, Cupertino and Santa Clara as neighbors and a small border section meeting San Jose near Sunnyvale Baylands Park. The 2020 census counted 155,805 residents, making it the second most populous city in the county after San Jose. Sunnyvale is one of the major cities of the high-technology region known as Silicon Valley, and was the home of Atari and the birthplace of the video game industry. It was also the site of Onizuka Air Force Station, a satellite control facility that was decommissioned and demolished after 2010, and it keeps a single unified Department of Public Safety whose personnel are trained as firefighters, police officers and emergency medical technicians.