Wallingford is an unincorporated community in Nether Providence Township, Delaware County in Pennsylvania, United States. Founded in 1687, it is named for Wallingford, England. In 2007, Wallingford was named by Money Magazine as the 9th best place to live in the United States; two other towns in the area made the top 15.It is west of Interstate 476 and east of S. Providence Road, PA 252. Crum Creek forms the township's eastern border with Swarthmore Borough. Wallingford lies north of Chester on the southwest edge of the Philadelphia urban area. Wallingford is about 9 miles from Philadelphia proper.The first area school started in 1810 and was built on a portion of a 78-acre land grant of farmer and friend of William Penn. Nether Providence School District was formed in 1856; it merged with the Swarthmore School District in 1984, creating the Wallingford Swarthmore School District. The Helen Kate Furness Library was founded in 1902.