All GMC Locations - Iowa
- Algona
- Ankeny
- Boone
- Cedar Falls
- Cherokee
- Clarion
- Clinton
- Council Bluffs
- Creston
- Davenport
- De Witt
- Decorah
- Denison
- Dubuque
- Estherville
- Forest City
- Fort Dodge
- Fort Madison
- Grinnell
- Harlan
- Hiawatha
- Humboldt
- Indianola
- Iowa City
- Iowa Falls
- Knoxville
- Le Mars
- Manchester
- Maquoketa
- Marengo
- Marshalltown
- Mason City
- Monticello
- Mount Ayr
- Mount Pleasant
- Muscatine
- New Hampton
- Newton
- Odebolt
- Ottumwa
- Pella
- Sioux City
- Storm Lake
- Urbandale
- Vinton
- Washington
- Webster City
- West Burlington