Pennsylvania State Route 339 is a north-south highway in Columbia County. It runs from the Columbia/Schuykill County Line, near Zion Grove, to the Columbia/Luzerne County Line, near Berwick. PA St Rt 339 passes through the following towns in Columbia County. Shumans Mainville Mifflinville PA St Rt 339 is not multi-plexed in Columbia County. PA St Rt 339 intersect the following highway in Columbia County. Interstate 80, near Mifflinville.
