Langhorne Borough is a borough in Bucks County, Pennsylvania, United States. The population was 1,622 at the time of the 2010 census.

Middletown Township is a township in Bucks County, Pennsylvania, United States. The population was 46,040 at the 2020 census. Many sections of Levittown are located in the southern end of the township. The municipality surrounds the boroughs of Langhorne, Langhorne Manor, Penndel and Hulmeville; much of the township beyond Levittown uses Langhorne as its mailing address. The township is located within the Delaware Valley, also known as the Philadelphia metropolitan area.