The lastest population estimate of San Diego County is about 3 million making San Diego County the third-most-populous county in California, just behind its northern neighbors Orange County and Los Angeles County. It is the fifth most-populous county in the United States and giving it a population greater than 20 of the 50 U.S. states.
San Diego County extends south all the way to the Mexican border, which is also the northern border of the State of Baja California del Norte and the northern city limits of the city of Tijuana, Mexico. San Diego County is bordered by Orange County and Riverside County on its north, by Imperial County, California on its east, and the Pacific
Ocean on its west and southwest. San Diego County is the location of miles of fine beaches, and a mild Mediterranean to semi-arid climate. Also in this county are 16 significant naval and military locations of the United States Navy, U.S. Marine Corps and the U.S. Coast Guard, including Naval Base San Diego, Marine Corps Base Camp Pendleton, Marine Corps Air Station Miramar, and Naval Air Station North Island.
Within San Diego County there are several cities. Please see the links below for city information. Also, check out my featured communities links above for an in-depth description of some special neighborhoods in the area.
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