Business U.S. Federal Route 1 is a north-south highway in South-Central Mercer County. It runs to the west of U.S. Rt. 1 through the Trenton Area. BUSN U.S. Rt. 1 passes through the following town in Mercer County. Trenton BUSN U.S. Rt. 1 is multu-plexed in Mercer County. U.S. Rt. 206, at Trenton.
BUSN U.S. Rt. 1 intersects the following highways in Mercer County. U.S. Rt. 1, near Lawrenceville.