Illinois State Route 251 is a north-south highway in Eastern Marshall County. This runs along the eastside of Interstate 39/U.S. Rt. 51. Portions of the eastern right-of-way are the county line for Marshall and La Salle County. IL St Rt 251 passes through the following towns in Marshall County. Rutland
NB IL St Rt 251 at the Marshall/Woodford County Line. (January, 2014) NB IL St Rt 251 south of Rutland. In Rutland the street signs have yet to be replaced from the re-routing of U.S. Rt. 51, over ten years prior. NB IL St Rt 251 near the BNSF Railway underpass. SB IL St Rt 251 south of IL St Rt 17. WB IL St Rt 17/SB IL St Rt 251 on the southside of Wenona. EB IL St Rt 17/NB IL St Rt 251 south of 800N Road. WB IL St Rt 17/SB IL St Rt 251 in Wenona. SB IL St Rt 251 at east IL St Rt 17. A junction marker on WB IL St Rt 17. A junction marker in Wenona. NB IL St Rt 251 north of Wenona. A guide marker at a turn north of Wenona. NB IL St Rt 251 north of 1000 Road. SB IL St Rt 251 at the La Salle/Marshall County Line.