Anaheim ( "ANNA-hime") is a city in Orange County, California. As of 2007, the city population was 345,556, making it the 10th most-populated city in California and ranked 54th in the United States. The city anticipates that the population will surpass 400,000 by 2014 due to rapid development in its Platinum Triangle area as well as in the affluent Anaheim Hills area. Anaheim is the second most populous city in Orange County (behind Santa Ana) and second largest in terms of land area, and it is known for its theme parks, sports teams, and convention center.