Illinois State Route 43 runs north-south in Eastern Lake County. This is a surface alternative to the multi-lane divided U.S. Rt. 41, which runs to the east of this highway. IL St Rt 43 passes through the following towns in Lake County. Deerfield
Bannockburn Lake Forest
Lake Bluff
Knollwood Green Oaks
North Chicago Waukegan
Park City IL St Rt 43 is not multi-plexed in Lake County. IL St Rt 43 intersects the following highways in Lake County. Illinois State Route 22, at Bannockburn.
NB IL St Rt 43 north of the Lake/Cook County Line. A guide marker on LCH A47. A junction marker on WB IL St Rt 22. NB IL St Rt 43 at Settlers Square. NB IL St Rt 43 at Westleigh Road. NB IL St Rt 43 at IL St Rt 60. A junction marker on EB IL St Rt 60. NB IL St Rt 43 in Park City. A BGS on SB U.S. Rt. 41. The northern end of IL St Rt 43 in Park City. The northern end marker.
