SAN DIEGO COUNTY
San Diego County is a county in the southwestern corner of the state of California, in the United States. As of the 2010 census, the population was 3,095,313 making it California's second-most populous county and the fifth-most populous in the United States.
There are also 16 naval and military installations of the U.S. Navy, U.S. Marine Corps, and the U.S. Coast Guard in San Diego County. These include the Naval Base San Diego, Marine Corps Base Camp Pendleton, Marine Corps Air Station Miramar, and Naval Air Station North Island.