San Diego County, California, is located in the southern part of the state, bordering Mexico. It is known for its beautiful coastline, diverse landscapes, and mild climate. The county encompasses several cities, including San Diego, which is the largest city in the area, as well as Chula Vista and Oceanside. The region is home to numerous attractions, such as Balboa Park, San Diego Zoo, and La Jolla Cove. San Diego County also features a rich cultural heritage, with influences from Mexican and Native American communities. Its economy is driven by tourism, military, and technology sectors.