As the third-most populous county in California, Orange County is bordered by the Pacific Ocean on the southwest side, by Los Angeles County on the north side, by San Bernardino County and Riverside County on the northeast side, and by San Diego County on the southeast side. Orange County’s three largest cities are Anaheim, Santa Ana, and Irvine.
Offering diverse terrain and a warm Mediterranean climate, the northwestern part of the county lies on the coastal plain of the Los Angeles Basin, while the southeastern end rises into the foothills of the Santa Ana Mountains.
Most of Orange County's residents reside in Santa Ana Valley and Saddleback Valley, two shallow coastal valleys that lie in the basin.
Orange County is famous for its tourism with attractions like Disneyland, Knott’s Berry Farm, and multiple beaches along its more than 40 miles of coastline.
This county is also the home of exciting professional sports and quality venues for visual and performing arts. It is the headquarters of many Fortune 500 companies and is home to numerous start-up companies.
This county offers some of the most exclusive neighborhoods in the United States. While most population centers in the United States tend to be identified by a major city, there is no defined urban center in Orange County.
It is mostly suburban except for a few traditionally urban areas at the centers of the older cities of Anaheim, Fullerton, Orange, Santa Ana, and Huntington Beach.