Anaheim, California is a city in California.
Anaheim ( pronounced [ ˈænəhaɪm ] ) is a city in Orange County , California , part of the Los Angeles metropolitan area . As of the 2010 United States Census , the city had a population of 336,265 , making it the most populous city in Orange County and the 10th most populous city in California . Anaheim Hills is a master-planned community located in the city 's eastern stretches that is home to many of the city 's affluent . Anaheim Hills is an affluent planned community encompassing the eastern portions of the city of Anaheim , in Orange County , California .