Concord ( KON-kerd) is the largest city in Contra Costa County, California. At the 2010 census, the city had a population of 122,067 making it the 8th largest city in the San Francisco Bay Area. Founded in 1869 as the community of Todos Santos by Salvio Pacheco, the name was changed to Concord within months. The city is a major regional suburban East Bay center within the San Francisco Bay Area, and is 29 miles (47 kilometres) east of San Francisco.
Concord is located at 37°58′41″N 122°01′52″W. It is 29 miles (47 kilometres) northeast of San Francisco, 22 miles (35 km) northeast from Oakland, 65 miles (105 km) southwest of Sacramento, and 51 miles (82 km) north of San Jose.
According to the United States Census Bureau, the city has a total area of 30.5 square miles (79 km2), all of it land.
The focal point of downtown Concord is Todos Santos Plaza, which encompasses an entire city block and is known for its farmers market, free summer concerts
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