Allegheny is a SEPTA Regional Rail station located along the R6 Norristown line located at 22nd Street and Allegheny Avenue in the Swampoodle neighborhood of North Philadelphia. http://www.septa.org/maps/click_map/allegheny.html SEPTA. "Allegheny Station." Allegheny Station is the first station along SEPTA's R6 Norristown line not to be shared with any other line.