The San Diego metropolitan area is located in southern California, bordered by the Pacific Ocean to the west and the U.S.-Mexico border to the south. It includes the city of San Diego, which is the second-largest city in California, along with several surrounding communities and suburbs. The region is known for its mild climate, beautiful beaches, and diverse cultural attractions. The metropolitan area is part of San Diego County, which is home to over 3 million residents. Key features include the San Diego Zoo, Balboa Park, and a strong military presence, with several naval bases. The economy is diverse, with sectors like tourism, defense, and technology playing significant roles.