Welcome to San Ramon
San Ramon is a city in Contra Costa County, California, located within the San Ramon Valley, and 34 miles east of San Francisco. San Ramon's population was 84,605 per the 2020 census, making it the 4th largest city in Contra Costa County.
Mount Diablo flanks the city to the northeast and is prominently visible from almost all parts of the city. The Las Trampas Regional Wilderness borders San Ramon's extreme northwest, at the northern end of Bollinger Canyon. The smaller Bishop Ranch Regional Preserve straddles San Ramon's western border, located approximately between Interstate 680 and the Alameda County line.
Major annual events include the Art and Wind Festival on Memorial Day weekend and the Run for Education in October.
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