Levittown, unincorporated residential community in Hempstead town (township), Nassau county, western Long Island, New York, U.S. Developed between 1946 and 1951 by the firm of Levitt and Sons, Inc., Levittown was an early example of a completely preplanned and mass-produced housing complex. More than 17,000 low-cost homes were built, with accompanying shopping centres, playgrounds, swimming pools, community halls, and schools. The name Levittown became a national symbol for suburbia during the post-World War II building boom. Many of the homes were subsequently remodeled or redesigned, and few of the original structures remain. Pop. (2000) 53,067; (2010) 51,881.