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San Ramon is a city in Contra Costa County, California, and suburb of San Francisco. It's population was 72,251 as of 2010 U.S. Census, making it 4th largest city in the county.
San Ramon serves as the headquarters of Chevron, 24-Hour Fitness, AT&T Inc., and the Global Software Center of GE. The city's annual events include the Art and Wind Festival and the Primo's Run for Education in October..