Du Page County Highway 23 is a north-south highway in Du Page County. It runs in three sections. The first is along Gary Avenue, from the Elgin-O'Hare Expressway to Jewell Road. Then along Naperville Roads from Illinois State Route 39 to Ridgeland Avenue. The last is on Naper Boulevard from Ridgeland Avenue to U.S. Rt. 34.
SB DPCH 23 at Army Trail Road. NB DPCH 23 near Warrenville Road. NB DPCH 23 near the Danada Forrest Preserve. The northern end at IL St Rt 38. The northern end marker.
