Illinois State Route 49 cuts north-south through Central Iroquois County. This is also the northern most county that IL St Rt 49 runs through. IL St Rt 49 passes through the following towns in Iroquois County. Cresent City
Cissna Park
IL St Rt 49 is not multi-plexed in Iroquois County. IL St Rt 49 intersects the following routes in Iroquois County. U.S. Rt. 45 near L'Erable. U.S. Rt. 52 near L'Erable.
NB IL St Rt 49 at the Iroquois/Vermilion County Line. (July, 2016) NB IL St Rt 49 at the Iroquois/Vermilion County Line. (August, 2024) SB IL St Rt 49 south of Cissna Park. NB IL St Rt 49 in Cissna Park. SB IL St Rt 49 south of Crescent City. SB IL St Rt 49 south of Crescent City. NB IL St Rt 49 south of U.S. Rt. 24. SB IL St Rt 49 north of Crescent City. NB IL St Rt 49 north of Crescent City. Looking north along IL St Rt 49 in Rural Iroquois County. SB IL St Rt 49 south of U.S. Rt. 45/52. SB IL St Rt 49 south of U.S. Rt. 45/52. NB IL St Rt 49 south of U.S. Rt. 45/52. A junction sign on WB U.S. Rt. 52. A junction marker on NB U.S. Rt. 45. A junction marker on SB U.S. Rt. 45/EB U.S. Rt. 52. The northern end point. The northern end marker. The northern end of IL St Rt 49. (May, 2015) The northern end marker. (May, 2015)