All GNC Locations - Michigan
- Adrian
- Algonac
- Allen Park
- Alma
- Alpena
- Ann Arbor
- Auburn Hills
- Battle Creek
- Bay City
- Belleville
- Benton Harbor
- Big Rapids
- Birch Run
- Bloomfield Hills
- Bridgeport
- Bridgman
- Brighton
- Brownstown Charter Township
- Burton
- Byron Center
- Cadillac
- Canton
- Caro
- Cedar Springs
- Charlevoix
- Charter Township Of Clinton
- Chesterfield
- Clarkston
- Clinton Township
- Clio
- Coldwater
- Coloma
- Commerce
- Davison
- Dearborn
- Dearborn Heights
- Detroit
- Dewitt
- Dexter
- Dowagiac
- Durand
- East Lansing
- Eastpointe
- Eaton Rapids
- Essexville
- Farmington
- Farmington Hills
- Fenton
- Ferndale
- Flint
- Flushing
- Fort Gratiot Township
- Garden City
- Gaylord
- Genesee
- Gladwin
- Grand Blanc
- Grand Haven
- Grand Ledge
- Grand Rapids
- Grandville
- Grayling
- Grosse Pointe
- Grosse Pointe Woods
- Hamtramck
- Harper Woods
- Harrison Township
- Haslett
- Highland
- Highland Park
- Hillsdale
- Holland
- Holly
- Holt
- Houghton
- Houghton Lake
- Howell
- Imlay
- Ionia
- Iron Mountain
- Jackson
- Jenison
- Kalamazoo
- Kalkaska
- Lake Orion
- Lambertville
- Lansing
- Lapeer
- Lincoln Park
- Livonia
- Lowell
- Ludington
- Manistee
- Marlette
- Marquette
- Marysville
- Mason
- Metamora
- Midland
- Milford
- Monroe
- Mount Morris
- Mt Clemens
- Mt Pleasant
- Muskegon
- New Baltimore
- New Haven
- Niles
- North Muskegon
- Novi
- Oak Park
- Okemos
- Orchard Lake
- Ortonville
- Otisville
- Owosso
- Perry
- Petoskey
- Pinckney
- Plymouth
- Pontiac
- Port Huron
- Portage
- Portland
- Redford Township
- Richmond
- Riverview
- Rochester Hills
- Rockford
- Roscommon
- Roseville
- Royal Oak
- Saginaw
- Saline
- Sault Ste. Marie
- South Lyon
- Southfield
- Southgate
- St Clair Shores
- Standish
- Sterling Heights
- Sturgis
- Swartz Creek
- Tawas City
- Taylor
- Three Rivers
- Traverse City
- Troy
- Walker
- Warren
- Washington
- Waterford
- Wayne
- West Bloomfield Township
- West Branch
- Westland
- Wixom
- Woodhaven
- Wyandotte
- Wyoming
- Ypsilanti