Mount Royal Plaza in Queensbury is located on Route 9N, with a number of retail, service and government businesses:
- Queensbury Chiropractic
- Edward Jones
- Capital District OTB
- Reality Dance Studio
- LGB Computers
- Royal Mails
- Kingsbury Printing
- Adirondack Tobacco
- I Love NY Pizza
- Miracle Ear
- Adirondack Urgent Care
- Armed Forces Recruiting Center
- Fit City Gym
- Replay Sports
- Capital Area Physical Therapy