San Diego County
County in California
San Diego County, officially the County of San Diego, is a county in the southwestern corner of the U.S. state of California. As of the 2020 census, the population was 3,298,634, making it California's second-most populous county and the... Wikipedia
Cities: San Diego, Chula Vista, Carlsbad, and more
Population: 3.276 million (2022)
Area: 4,261 mi²
Area codes: 442/760, 619/858, and 949
Congressional districts: 48th, 49th, 50th, 51st, 52nd
Formed: February 18, 1850
Highest elevation: 6,533 ft (1,991 m)