Morrisville PA is a quaint little borough of approximately two square miles ... With one of the lowest crime rates in PA, you can feel safe in Morrisville. Named for Robert Morris, financier of the American Revolution, the Borough of Morrisville is located at the falls of the Delaware River across from Trenton. Historically, the town has strong ties to both Trenton and Philadelphia. Originally a village located in Falls Township until it was partioned as a Borough by the Pennsylvania Legislature in 1804. Located along the Delaware River and Canal.