San Diego County
San Diego County, officially the County of San Diego, is located in the southwest corner of the U.S. state of California, north to its border with Mexico. As of the 2020 census, the population was 3,298,634; it is the second-most populous county in California and the fifth-most populous in the United States. Its county seat is San Diego, the second-most populous city in California and the eighth-most populous in the United States. It is the southwesternmost county in the 48 contiguous United States, and is a border county. It is home to 18 Indian reservations, the most of any county in the United States. There are 16 military installations of the U.S. Navy, Marine Corps, and Coast Guard in the county.
Governance bodies
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Cities and towns 18
- City of Carlsbad pop. 115,302
- City of Chula Vista pop. 277,220
- City of Coronado pop. 19,860
- City of Del Mar pop. 3,922
- City of El Cajon pop. 105,432
- City of Encinitas pop. 61,762
- City of Escondido pop. 150,665
- City of Imperial Beach pop. 26,059
- City of La Mesa pop. 60,721
- City of Lemon Grove pop. 27,413
- City of National City pop. 55,912
- City of Oceanside pop. 172,982
- City of Poway pop. 48,421
- City of San Diego pop. 1,381,611
- City of San Marcos pop. 94,926
- City of Santee pop. 59,703
- City of Solana Beach pop. 12,867
- City of Vista pop. 98,655
Reference data (Census of Governments 2022)
- Census ID (PID6)
- 161111
- FIPS state
- 06
- FIPS county
- 073
- FIPS place
- 99073
- Census record name
- COUNTY OF SAN DIEGO
- Mailing address
- 5530 OVERLAND AVE, SAN DIEGO 92123