Pennsylvania State Route 104 is a north-south highway in Northeastern Perry County. It runs from U.S. Rt. 11/15, near Oriental, to the Perry/Juniata County Line, just north of the intersection with U.S. Rt. 11/15. PA St Rt 104 does not pass through any towns in Perry County. PA St Rt 104 is not multi-plexed in Perry County. PA St Rt 104 intersects the following highways in Perry County. U.S. Rt. 11, near Oriental. U.S. Rt. 15, near Oriental.
A junction maker on NB U.S. Rt. 11/15. NB PA St Rt 104 north of U.S. Rt. 11/15. SB PA St Rt 104 at the Juniata/Perry County Line.
