All GNC Locations - Colorado
- Air Force Academy
- Arvada
- Aurora
- Avon
- Boulder
- Brighton
- Broomfield
- Carbondale
- Castle Rock
- Centennial
- Colorado Springs
- Delta
- Denver
- Dillon
- Durango
- Englewood
- Federal Heights
- Fort Carson
- Fort Collins
- Fort Morgan
- Glendale
- Glenwood Springs
- Grand Junction
- Greeley
- Greenwood Village
- Highlands Ranch
- Lakewood
- Littleton
- Longmont
- Louisville
- Loveland
- Montrose
- Monument
- Northglenn
- Parker
- Pueblo
- Steamboat Springs
- Thornton
- Westminster
- Wheat Ridge
- Woodland Park