California 's a state on the West Coast of the United States, along the Pacific Ocean. It's bordered by Oregon to the north, Nevada to the east, Arizona to the southeast, and, to the south, the Mexican state of Baja California. California's the most populous U.S. state. Its four largest cities are Los Angeles, San Diego, San Jose, and San Francisco. The state's home to eight of the nation's fifty largest cities. It's known for its varied climate and geography as well as its diverse population.… (More on California)