Co-op City (short for Cooperative City) is a cooperative housing development located in the northeast section of the borough of the Bronx in New York City. It is bounded by Interstate 95 to the southwest, west, and north and the Hutchinson River Parkway to the east and southeast, and is partially in the Baychester and Eastchester neighborhoods. With 43,752 residents as of the 2010 United States Census, it is the largest housing cooperative in the world. It is in New York City Council District 12. Co-op City was formerly marshland before being occupied by an amusement park called Freedomland U.S.A. from 1960 to 1964. Construction began in 1966 and the first residents moved in two years later, though the project was not completed until 1973. The construction of the community was sponsored by the United Housing Foundation and financed with a mortgage loan from New York State Housing Finance Agency. The community is part of Bronx Community District 10 and its ZIP Code is 10475. Nearby attractions include Pelham Bay Park, Orchard Beach and City Island. Description Co-op City's 15,372 residential units are composed of 35 high rise buildings and seven clusters of townhouses, making it the largest residential development in the United States. It sits on , though only 20% of the land was developed, leaving many green spaces. The apartment buildings range from 24 to 33 floors. There are four types of buildings: 10 Triple Core (26 stories high with 500 apartment units per building), 10 chevron (24 stories, 414 units), 15 tower (33 stories, 384 units), and 236 town houses. The townhouses are three stories high and have a separate garden apartment and upper duplex apartment. This "city within a city" also has eight parking garages, three shopping centers, a educational park, including a high school, two middle schools, and three grade school. More than 40 offices are rented by doctors, lawyers, and other professionals, and there are 15 houses of worship. Spread throughout the community are six nursery schools and day care centers, four basketball courts, and five baseball diamonds. The adjacent Bay Plaza Shopping Center has a 13-screen multiplex movie theater, department stores, and a supermarket. The development was built on landfill, and the original marshland still surrounds it. The building foundations extend down to bedrock through 50,000 pilings, but the land surrounding Co-op's structures settles and sinks a fraction of an inch each year,