Discovery Bay, California

Discovery Bay is a census-designated place (CDP) in eastern Contra Costa County, California in the United States, about 60 miles (97 km) from San Francisco. It is located in the East Bay region of the San Francisco Bay Area. As of 2010, its population was 13,352, a 48.7 percent gain from 8,981 at the 2000 census.Discovery Bay is a waterfront community built on a network of man-made dikes, surrounded by freshwater, except for the southeast quadrant, which comprises the golf course of Discovery Bay Country Club. Many homes have private docks with access to the Sacramento–San Joaquin River Delta. Road access is via California State Route 4.HistoryDiscovery Bay has a short history. It was begun as a planned community in 1964, and originally designated as "Riverside" and "River Lake." It was built on land known as the Byron Tract, which was previously used for growing barley and potatoes. In 1968, Jurgen Lunding led an effort to give the community its current name.In July 2007, Discovery Bay received its own ZIP code: 94505. Formerly, it had shared 94514 with Byron. The ensuing celebration included a world record-setting paddle boat raft-up.GeographyAccording to the United States Census Bureau, the CDP has a total area of 7.0sqmi, of which, 6.2sqmi of it is land and 0.8sqmi of it (11.7%) is water.