San Diego County is a county located in the southwestern corner of the State of California. As of the 2010 census, the population was 3,095,313, making it the second-most populous county in California and the fifth-most populous in the United States. Its county seat is San Diego, the eighth-most populous city in the United States. It is the south-westernmost county in the 48 contiguous United States.
San Diego County comprises the San Diego-Carlsbad, CA Metropolitan Statistical Area. It is also part of the San Diego–Tijuana metropolitan area, the largest metropolitan area shared between the United States and Mexico.
San Diego County has 70 miles (110 km) of coastline. Most of the county has a mild Mediterranean climate to semiarid climate, though there are mountains that receive frost and snow in the wintertime.
There are also 16 naval and military installations of the U.S. Navy, U.S. Marine Corps, and the U.S. Coast Guard in San Diego County. These include the Naval Base San Diego, Marine Corps Base Camp Pendleton, Marine Corps Air Station Miramar, and Naval Air Station North Island.
Arising from an effort by the state government to identify regional economies, 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. However, the two counties maintain weak relations and have little in common aside from their common border.
From north to south, San Diego County extends from the southern borders of Orange County and Riverside County to the Mexico–United States border and Baja California. From west to east, San Diego County stretches from the Pacific Ocean to its boundary with Imperial County. (Full article...)
The San Diego Zoo
in Balboa Park
, San Diego
, is one of the largest and most progressive zoos
in the world, with over 4,000 animals of more than 800 species
. It is also one of the few zoos in the world that houses the giant panda
. It is privately operated by the nonprofit Zoological Society of San Diego
on 107 acres (0.43 km2
) of parkland leased from the City of San Diego, and ownership of all animals, equipment and other assets rests with the City of San Diego. Besides an extensive collection of birds, reptiles, and mammals, it also maintains its grounds as an arboretum
, with a rare plant collection.
The San Diego Zoo grew out of exotic animal exhibitions abandoned after the 1915 Panama-California Exposition. Exhibits are often designed around a particular habitat. The same exhibit features many different animals that can be found side-by-side in the wild, along with native plant life. Many species are bred in captivity for release into their native habitats where appropriate. The zoo offers a guided tour bus and an overhead gondola lift called the Skyfari, providing an aerial view of the zoo. The San Diego Zoo also operates the San Diego Zoo Safari Park, which displays animals in a more expansive setting than at the Zoo.