Illinois State Route 127 is a north-south highway in Union County. It runs in the central portions of the county. This connects Jonesboro to Murphysboro, and Cario, via U.S. Rt. 51. IL St Rt 127 passes through the following towns in Union County. Mill Creek Jonesboro Alto Pass IL St Rt 127 is multi-plexed in Union County. Illinois State Route 146, at Jonesboro.
IL St Rt 127 intersects the following highways in Union County. Illinois State Route 146, at Jonesboro.
