Program Information YMCA of Greater Long Beach, through its eight branches, serves a population of over 816,000 in the cities of Long Beach, Signal Hill, Lakewood, Hawaiian Gardens, Bellflower, Paramount, Cerritos, Artesia, Los Alamitos, Rossmoor, Seal Beach and Big Bear. The Y offers programs, services and initiatives focused on youth development, healthy living and social responsibility, according to the unique needs of the communities it engages.