Illinois State Route 68 runs east-west across the east-west across the northern portion of Cook County. This highway is Cook Counties northern most east-west highway. IL St Rt 68 passes through the following towns in Cook County. Northbrook
Wheeling
Buffalo Grove Arlington Heights
Palatine Inverness Barrington Hills IL St Rt 68 is multi-plexed in Cook County. Illinois State Route 53, at Palatine.
EB IL St Rt 68 at the Cook/Kane County Line. EB IL St Rt 68 in Barrington Hills. A guide marker on EB IL St Rt 62/68. WB IL St Rt 62/68 in Barrington Hills. A set of markers on SB IL St Rt 59/WB IL St Rt 68. A junction marker on SB IL St Rt 59. WB IL St Rt 68 at north IL St Rt 59. WB IL St Rt 68 east of north IL St Rt 59. WB IL St Rt 68 in Barrington. A guide marker on Barrington Road. WB guide marker. A BGS on NB IL St Rt 53. A guide marker on SB IL St Rt 83. EB IL St Rt 68 east of IL St Rt 43 in Northbrook. A BGS on WB I-94/NB U.S. Rt. 41. A BGS on WB I-94/U.S. Rt. 41. A BGS on WB I-94/U.S. Rt. 41. The eastern end in Northbrook. The eastern end marker.
