Saint Joseph's University (also referred to as SJU or Saint Joe's) is a private, coeducational Roman Catholic Jesuit university located at the intersection of the Wynnefield neighborhood of Philadelphia, Pennsylvania, United States of America, and the Lower Merion Township on the historic Pennsylvania Main Line. The University was founded in 1851 as Saint Joseph's College by the Society of Jesus, also known as the Jesuits. Saint Joseph's is the seventh oldest Jesuit university in the United States. Saint Joseph's University is one of 28 member institutions of the Association of Jesuit Colleges and Universities.