OC Bus

OC Bus is the transit bus service operated by the Orange County Transportation Authority (OCTA), serving every city in Orange County. Some of the lines serve the Los Angeles County border communities of Lakewood, La Mirada, Cerritos, Hawaiian Gardens, and Long Beach. As of February 2023, there are 52 routes in the system.

The agency is the second-largest public transportation provider in the metropolitan area after the Los Angeles County Metropolitan Transportation Authority. Its predecessor agencies include not only the prior Orange County Transit District but also such diverse entities as the Pacific Electric Railway and the South Coast Transit Corporation. In 2005, OCTA was judged America's Best Public Transportation System by the American Public Transportation Association, for its record gains in bus and Metrolink commuter trains ridership that it operates or funds.

The Authority's administrative offices are located in the city of Orange and it maintains bus operations bases in the cities of Garden Grove, and Santa Ana. Keolis operates about 40% of OCTA's Fixed Routes out of the Anaheim and Irvine bases, while Transdev operates OCTA's paratransit base for the authority's ACCESS service, also in Irvine.

All OCTA buses are equipped with bike racks and can carry two bikes, and three bicycles on some buses at any time.

South Coast Plaza is the most served location on the OC Bus system, served by five routes (55, 57, 86, 150, 553). The longest is route 1 (Long Beach–San Clemente) which utilizes Pacific Coast Highway for the vast majority of its 40-mile (64 km) route. Trips take an average of 2 to 2.5 hours.