| Glenmont to River Ridge (Louisiana) | 977.27 mi (1,572.76 km) |
| Glenmont to Riverbank (California) | 2,355.46 mi (3,790.75 km) |
| Glenmont to Riverdale (Georgia) | 558.89 mi (899.44 km) |
| Glenmont to Riverdale (Illinois) | 584.79 mi (941.13 km) |
| Glenmont to Riverside (California) | 2,250.09 mi (3,621.17 km) |
| Glenmont to Riverside (Ohio) | 380.71 mi (612.69 km) |
| Glenmont to Riverton (Utah) | 1,844.25 mi (2,968.03 km) |
| Glenmont to Riverton (Wyoming) | 1,647.30 mi (2,651.07 km) |
| Glenmont to Riverview (Florida) | 833.66 mi (1,341.64 km) |
| Glenmont to Riverview (Michigan) | 387.02 mi (622.84 km) |
| Glenmont to Riviera Beach (Florida) | 866.86 mi (1,395.08 km) |
| Glenmont to Riviera Beach (Maryland) | 28.65 mi (46.11 km) |
| Glenmont to Roanoke (Virginia) | 200.79 mi (323.15 km) |
| Glenmont to Roanoke Rapids (North Carolina) | 184.30 mi (296.60 km) |
| Glenmont to Robbinsdale (Minnesota) | 929.17 mi (1,495.35 km) |
