About San Diego County, California
San Diego County is one of the most populous counties in California. It is home to over 3 million people and is the second largest county in the state. The county is bordered by Los Angeles County to the north, Orange County to the northeast, and Riverside County to the east. San Diego County also includes the cities of San Diego, Carlsbad, Escondido, and La Mesa. The county is known for its beautiful beaches, its mild climate, and its diverse population.