La Jolla is a small neighborhood in Placentia, California in northern Orange County. Traditionally La Jolla has largely been made up of Hispanics, but does have Caucasian and a small portion of African-Americans residents as well. This small neighborhood was once known as La Jolla Colony, Placentia and was not considered part of unincorporated Anaheim. Today, like the nearby community of Atwood, La Jolla is part of the City of Placentia. Since its construction, La Jolla has been bisected by the 57 Freeway, but connected by a traffic and pedestrian bridge over the freeway.