Indiana State Route 104 is a north-south highway in Southeastern La Porte County. It runs from Indiana State Route 4, near Salem Heights, to the La Porte/St. Joseph County Line, near Walkerton. IN St Rt 104 passes through the following town in La Porte County. Stillwell
IN St Rt 104 is not multi-plexed in St. Joseph County. IN St Rt 104 intersects the following highway in St. Joseph County. Indiana State Route 4, near Salem Heights.