The area which is now San Diego County has been inhabited for more than 12,000 years by Kumeyaay (also called Diegueno and Ipai/Tipai), Payómkawichum (Luiseño), Kuupangaxwichem (Cupeño), ʔívil̃uqaletem (Cahuilla), … See more

According to the U.S. Census Bureau, the county has an area of 4,526 square miles (11,720 km ), of which 4,207 square miles (10,900 km ) is land and 319 square miles (830 km ) (7.0%) is water. The county is larger in ar… See more

In the 1847 census of San Diego County ordered by Richard Barnes Mason, it found that 2,287 people lived in the county, to include Native Americans, Pacific Islanders, and African Americans. Since at least 2014, San Diego … See more

San Diego County and Imperial County are part of the Southern Border Region, one of nine such regions. As a regional economy, the Southern Border Region is the smallest but most economically diverse region in the state. How… See more

The culture of San Diego is influenced heavily by American and Mexican cultures due to its position as a border town, its large Hispanic population, and its history as part of Spanish America and Mexico. The area's longtime as… See more