All Mercury Locations - Illinois
- Alton
- Antioch
- Arlington Heights
- Barrington
- Belvidere
- Blue Island
- Bourbonnais
- Breese
- Cairo
- Calumet City
- Carbondale
- Carmi
- Carrollton
- Centralia
- Champaign
- Chicago
- Clinton
- Collinsville
- Danville
- Decatur
- Delavan
- Dixon
- Dwight
- Effingham
- Elmhurst
- Eureka
- Fairbury
- Freeport
- Galesburg
- Geneseo
- Gibson City
- Gurnee
- Harrisburg
- Henry
- Highland
- Highland Park
- Hillsboro
- Hoopeston
- Jacksonville
- Jerseyville
- Joliet
- Kewanee
- Libertyville
- Lincoln
- Litchfield
- Macomb
- Marion
- Marshall
- Matteson
- Mattoon
- Mchenry
- Mendota
- Moline
- Monticello
- Morris
- Mount Carroll
- Mount Vernon
- Naperville
- Nashville
- Normal
- North Aurora
- North Riverside
- Oregon
- Orland Park
- Ottawa
- Park Ridge
- Peoria
- Peotone
- Peru
- Pontiac
- Princeton
- Quincy
- Red Bud
- Rochelle
- Rockford
- Salem
- Sandwich
- Schaumburg
- Springfield
- St Charles
- Sterling
- Streator
- Vienna
- Waterloo
- Watseka
- Westmont
- Wilmington
- Woodstock