Concord (/kkrd/KONG-krd; formerly Todos Santos) is the largest city in Contra Costa County, California, in the United States. At the 2010 census, the city had a population of 122,067. 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 31 miles (50km) east of San Francisco. Concord is located at 375841N1220152W / 37.97806N 122.03111W / 37.97806; -122.03111. It is 29 miles (47km) northeast of San Francisco, 22 miles (35km) northeast from Oakland, 65 miles (105km) southwest of Sacramento, and 51 miles (82km) north of San Jose.