US 20 in Illinois

US 20 is multiplexed with US 12 and US 41 when it crosses the state line into Illinois.

US 20 bypasses downtown Chicago, passing through the southern and western suburbs instead.

	US 12	Illinois
Iowa	US 20	Indiana
	US 34	Illinois
	US 41	Illinois
	US 45	Illinois
	US 51	Illinois
Naperville	Amtrak California Zephyr	Chicago
	Amtrak Capitol Limited	Chicago
	Amtrak Cardinal	Chicago
La Grange Road	Amtrak Carl Sandburg	Chicago
Chicago	Amtrak City of New Orleans	Homewood
	Amtrak Hoosier State	Chicago
Chicago	Amtrak Illini	Homewood
La Grange Road	Amtrak Illinois Zephyr	Chicago
	Amtrak Lake Shore Limited	Chicago
Joliet	Amtrak Lincoln Service	Summit
Chicago	Amtrak Saluki	Homewood
Naperville	Amtrak Southwest Chief	Chicago
Joliet	Amtrak Texas Eagle	Chicago
LaGrange Rd.	Metra BNSF Railway	Congress Park
91st St.	Metra Electric	95th St.
Willow Springs	Metra Heritage Corridor	Summit
National St./Elgin	Metra Milwaukee District West Line	Schaumburg
99th St./Beverly	Metra Rock Island District	95th St./Beverly
95th St./Longwood	Metra Rock Island District	Gresham
Berkeley	Metra Union Pacific West Line	Bellwood
Joliet	GM&O	Chicago
91st Street (Chesterfield)	IC Transit Electric	95th Street (Burnside)
	Monon	Englewood
	New York Central to Buffalo	Englewood
	New York Central to New York	Englewood