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San Ramon, California Map and Directory


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Contra Costa County, California locator map According to the United States Census Bureau, San Ramon is a City that is located in Contra Costa County, California at 37.78 degrees North and 121.98 degrees West.  The city's time zone is America/Los Angeles, and the city's primary telephone area code is 925.  The land area of San Ramon is about 18.63 square miles, whereas the water area of the city is about 0.02 square miles.  Contra Costa County's land area is about 716 square miles, so the city occupies about 2.6 percent of the county's total land area.

The Census Bureau estimates that San Ramon had about 75,931 residents in 2017, which is approximately 4,076 people per square mile of land area. 

According to recent American Community Survey data, San Ramon had 25,215 total estimated households and the median household income was about $129,062 per year. 

The California counties map at upper right shows Contra Costa County, highlighted in red.  Use the menu below to display interactive maps of San Ramon, either in a frame on this page or in full-screen mode. 

Use the menu below to display categorized San Ramon directories. 

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