Levittown, Pennsylvania is a census-designated place and suburban community located in Bucks County, Pennsylvania, within the Philadelphia metropolitan area. As of the 2000 census, the Levittown CDP had a total population of 53,966. It is 40 feet above sea level. Though not a municipality, it is commonly reckoned as the largest suburb of Philadelphia in Pennsylvania. Upper Darby Township, Philadelphia's largest suburban township in Pennsylvania, and other suburban townships boast larger populations, yet these municipalities consist of more than one locality; 2 3 In New Jersey, both Camden and Cherry Hill have more inhabitants than Levittown. Levittown apartments for rent comparison page shows most up to date rent information on Levittown apartments and houses. Rent information is obtained from multiple rental sources but we cannot guarantee their accuracy.