Huntington Beach is a seaside city in Orange County in Southern California. According to the 2010 census, the city population was 189,992; making it the largest beach city in Orange County in terms of population. The estimate for 2011 shows that the population has grown to 191,489. It is bordered by the Pacific Ocean on the southwest, by Seal Beach on the northwest, by Costa Mesa on the east, by Newport Beach on the southeast, by Westminster on the north, and by Fountain Valley on the northeast.