Concord 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 (50 km) east of San Francisco.
Concord is located at 37°58′41″N 122°01′52″W. It is 29 miles (47 km) 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, and large number of surrounding restaurants. Much of the area immediately around downtown has recently been redeveloped, with new high-density apartment and condominium projects to take advantage of the proximity to public transportation and the vibrant area surrounding the park. Despite this, some crime and homelessness remain issues in the downtown area.
To the north and east of downtown is the older residential area of Concord, with many homes dating back to before World War II. In the far northern edge of town is a primarily industrial area, dominated by the Tesoro Golden Eagle Refinery (which is actually not located within city limits). The southeastern area of the city, centered along Clayton Road, is primarily residential and was mostly developed in the 1960s and 1970s. In the southwest area of the city is the primarily Latino neighborhood known as Four Corners, centered around the intersection of Monument Boulevard and Oak Grove Road.
Concord is bordered on the west by Pleasant Hill and the unincorporated community of Pacheco, on the south by Walnut Creek, on the southeast by Clayton, on the northeast by Pittsburg and the unincorporated community of Bay Point, and on the north by the unincorporated community of Clyde. Though it shares no border with Concord, Martinez (the county seat) is located almost immediately adjacent to Concord on the northwest.
Official data from the National Weather Service cooperative station in Concord shows average January temperatures are a maximum of 57.2 °F (14.0 °C) and a minimum of 41.6 °F (5.3 °C). Average July temperatures are a maximum of 87.8 °F (31.0 °C) and a minimum of 58.2 °F (14.6 °C). There are an average of 45.0 days with highs of 90 °F (32.2 °C) or higher and 3.8 days with lows of 32 °F (0.0 °C) or lower. The highest recorded temperature was 110 °F (43.3 °C) on July 23, 2006. The lowest record temperature was 24 °F (−4.4 °C) on December 23, 1998.
Average annual precipitation is 18.31 inches, falling on an average of 57 days annually. The wettest year was 1995 with 26.62 inches (676.1 mm) and driest year was 2007 with 10.57 inches (268.5 mm). The most rainfall in one month was 11.79 inches (299.5 mm) in December 2005, which included the 24-hour maximum rainfall of 3.95 inches (100 mm) on December 31.
All information about Concord courtesy of Wikipedia.