All O'Reilly Auto Parts Locations - Illinois
- Addison
- Alton
- Anna
- Arlington Heights
- Aurora
- Bartonville
- Belleville
- Benton
- Berwyn
- Bloomington
- Bolingbrook
- Bridgeview
- Buffalo Grove
- Calumet City
- Carbondale
- Centralia
- Champaign
- Charleston
- Chicago
- Chillicothe
- Cicero
- Collinsville
- Danville
- Darien
- Decatur
- Dixon
- Du Quoin
- East Moline
- East Peoria
- East St Louis
- Effingham
- Elgin
- Fairview Heights
- Franklin Park
- Freeport
- Galesburg
- Godfrey
- Granite City
- Harrisburg
- Harvey
- Havana
- Herrin
- Highland
- Hillside
- Jacksonville
- Jerseyville
- Joliet
- Kewanee
- Lake In The Hills
- Lincoln
- Litchfield
- Lombard
- Machesney Park
- Macomb
- Marion
- Melrose Park
- Mendota
- Merrionette Park
- Metropolis
- Moline
- Monmouth
- Morton
- Mount Prospect
- Mt Vernon
- Mundelein
- Niles
- O'fallon
- Oak Forest
- Olney
- Paris
- Pekin
- Peoria
- Peoria Heights
- Peru
- Petersburg
- Princeton
- Quincy
- Robinson
- Rock Falls
- Rock Island
- Rockford
- Romeoville
- Salem
- Schaumburg
- Shelbyville
- South Chicago Heights
- Springfield
- Streamwood
- Streator
- Taylorville
- Waterloo
- Wauconda
- Waukegan
- Woodstock