Illinois 53 is, like IL59, a route running north-south through the western suburbs of Chicago. It goes from Long Grove to Joliet, then parallels I-55 until Gardner. This stretch from Joliet southward used to be part of US66.
Intersections from north to south:
IL53 begins at IL83 at Long Grove
IL53 joins US12 southeast
IL53 turns easterly onto IL68 as US12 continues straight across it
Then IL53 runs on an expressway south to US12
IL62 by Rolling Meadows
I-90 (at this point I-290 starts and joins IL53)
IL58 at Schaumburg, near Woodfield Mall
IL72 at Schaumburg, also near Woodfield Mall
IL53 breaks off of I-290
IL38 by Glen Ellyn
IL56 near Lombard and Glen Ellyn
I-88 to/from the east
US34 at Lisle
I-55 near Bolingbrook and Romeoville
IL7 joins from the east near Lockport
IL7 leaves to the west at Crest Hill
US52 joins from the west at Joliet
US52 breaks off and goes east
IL102 at Wilmington
IL113 at Braidwood
IL53 ends in the south at I-55 at Gardner.
It passes through these towns: Long Grove, Palatine, Schaumburg, Itasca, Glendale Heights, Glen Ellyn, Lisle, Woodridge, Bolingbrook, Romeoville, Crest Hill, Joliet, Preston Heights, Elwood, Wilmington, Braidwood, Godley, Braceville, then IL53 ends by wrapping around the south side Gardner and running into I-55.