San Ramon (Spanish: San Ramón) is a city in Contra Costa County, California, United States, located 34 miles east of San Francisco, and within the San Ramon Valley. San Ramon's population was estimated as 75,931 in 2017 by the US Census Bureau, making it the 4th largest city in Contra Costa County, behind Richmond, Concord and Antioch.
San Ramon is home to the headquarters of Chevron, 24 Hour Fitness, the West Coast headquarters of AT&T, the Global Software Center of General Electric, as well as the San Ramon Medical Center. Major annual events include the Art and Wind Festival on Memorial Day weekend and the Run for Education in October.
On April 24, 2001, San Ramon received the title Tree City USA.
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