Levittown, formerly Island Trees, is a hamlet and census-designated place in the Town of Hempstead in Nassau County, New York on Long Island. It is located halfway between the villages of Hempstead and Farmingdale. As of the 2010 census, the CDP had a total population of 51,881, making it the most populated CDP in Nassau County and the second most populated CDP on Long Island, behind only Brentwood. Levittown gets its name from its builder, the firm... Show more

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