Ilinois State Route 83 runs north-south through the county. Through most of the county this highway has interchanges for its intersections with the major highways. IL St Rt 83 passes through the following towns in Du Page County. Willowbrook Clarendon Hills
A BGS on NB I-55. SB IL St Rt 83 at I-55. NB IL St Rt 83 in Willowbrook. NB IL St Rt 83 south of U.S. Rt. 34. A junction marker on EB U.S. Rt. 34. NB IL St Rt 83 near 31st in Oak Brook. A BGS on WB I-88. A Du Page County mile marker. A BGS on EB IL St Rt 56. A BGS on EB IL St Rt 38. A junction marker on EB IL St Rt 38. NB IL St Rt 83 north of IL St Rt 38. NB IL St Rt 83/EB TK IL St Rt 64 in Elmhurst. NB IL St Rt 83/EB TK IL St Rt 64 at U.S. Rt. 20. A junction marker on WB U.S. Rt. 20/TK IL St Rt 64. A guide marker on WB U.S. Rt. 20/TK IL St Rt 64. Guide markers on Du Page County Highway 20. A BGS on WB I-290.
