Indiana State Route 1 is a north-south highway in Southwestern Steuben County. It runs from Ellis south to the Steuben/Dekalb County Line, near Hamilton. IN St Rt 1 passes through the following towns in Steuben County. Ellis
Hamilton IN St Rt 1 is multi-plexed in Steuben County. Indiana State Route 427, near Hamilton. IN St Rt 1 intersects the following highways in Steuben County. U.S. Rt. 20, at Ellis. Indiana State Route 427, near Hamilton. Indiana State Route 427, near Hamilton.
