Orange County is a county located in the Los Angeles metropolitan area in the U.S. state of California. With a population of over 3 million people, it is one of the most populous counties in the state and the nation. Orange County is known for its beautiful beaches, theme parks, and shopping destinations, making it a popular tourist destination. The county's largest city is Santa Ana, while other notable cities include Anaheim, Irvine, and Huntington Beach. The economy of Orange County is diverse and driven by industries such as technology, tourism, and healthcare.