All Denny's Locations - Illinois
- Addison
- Alorton
- Arlington Heights
- Aurora
- Belleville
- Bloomington
- Bolingbrook
- Bourbonnais
- Calumet City
- Carbondale
- Carol Stream
- Carpentersville
- Chicago
- Collinsville
- Des Plaines
- Effingham
- Franklin Park
- Glen Carbon
- Gurnee
- Hanover Park
- Hickory Hills
- Highland Park
- Hoffman Estates
- Joliet
- Lasalle
- Litchfield
- Matteson
- Melrose Park
- Mokena
- Moline
- Mt Vernon
- Normal
- Norridge
- North Aurora
- North Pekin
- O'fallon
- Oak Lawn
- Oak Park
- Oakbrook Terrace
- Orland Park
- Palatine
- Peoria
- Pontoon Beach
- Prospect Heights
- River Grove
- Rockford
- Salem
- Schaumburg
- Schiller Park
- South Beloit
- Springfield
- Tuscola
- Vernon Hills
- Waterloo
- Waukegan
- Willowbrook