Illinois State Route 121 runs east-west across Moultrie County. This highway connects the west and east sections of the Shelbyville Wildlife Management Area. IL St Rt 121 passes through the following towns in Moultrie County. Bethany
Dunn
Sullivan
Coles IL St Rt 121 is multi-plexed in Moultrie County. Illinois State Route 32, at Sullivan.
IL St Rt 121 intersects the following highway in Moultrie County. Illinois State Route 128, near Dalton City.
The Moultrie County Courthouse in Sullivan. This is about one block south of IL St Rt 121. WB IL St Rt 121 at IL St Rt 32 in Sullivan. NB IL St Rt 32/WB IL St Rt 121 west of Sullivan. WB IL St Rt 121 west of IL St Rt 32. WB IL St Rt 121 west of Dunn. WB IL St Rt 121 at Bethany. WB IL St Rt 121 west of Bethany. WB IL St Rt 121 near Dalton City. WB IL St Rt 121 near the Macon/Moultrie County Line.
