All Columbia Locations - Illinois
- Algonquin
- Alton
- Arlington Heights
- Aurora
- Bannockburn
- Belleville
- Benton
- Berwyn
- Bloomingdale
- Bloomington
- Bolingbrook
- Bourbonnais
- Broadview
- Buffalo Grove
- Burbank
- Calumet City
- Calumet Park
- Carbondale
- Centralia
- Champaign
- Charleston
- Chicago
- Chicago Ridge
- Crystal Lake
- Danville
- Decatur
- Deer Park
- Deerfield
- Dundee
- Edwardsville
- Effingham
- Elmhurst
- Evergreen Park
- Fairview Heights
- Forsyth
- Fox Lake
- Frankfort
- Freeport
- Galena
- Galesburg
- Geneseo
- Geneva
- Gibson City
- Glen Ellyn
- Glendale Heights
- Glenview
- Granite City
- Gurnee
- Gurnee Mills
- Highland
- Highland Park
- Hoffman Estates
- Jacksonville
- Joliet
- Kildeer
- Lake Zurich
- Lincolnwood
- Litchfield
- Lombard
- Marion
- Matteson
- Mattoon
- Mchenry
- Moline
- Montgomery
- Morris
- Morton
- Morton Grove
- Mount Prospect
- Mount Vernon
- Naperville
- Newton
- Niles
- Normal
- Norridge
- North Riverside
- Northbrook
- Oak Brook
- Oak Lawn
- Oakbrook Terrace
- Olney
- Orland Park
- Oswego
- Ottawa
- Paris
- Pekin
- Peoria
- Peru
- Pinckneyville
- Pontiac
- Princeton
- Quincy
- Rantoul
- Round Lake Beach
- Saint Charles
- Schaumburg
- Skokie
- Sparta
- Springfield
- St Charles
- Sterling
- Tilton
- Tinley Park
- Urbana
- Vandalia
- Vernon Hills
- Villa Park
- Waterloo
- Watseka
- Wheaton
- Willowbrook
- Wilmette
- Winthrop Harbor
- Woodridge
- Woodstock