| Darby to River Ridge (Louisiana) | 1,088.95 mi (1,752.49 km) |
| Darby to Riverbank (California) | 2,436.79 mi (3,921.64 km) |
| Darby to Riverdale (Georgia) | 669.80 mi (1,077.94 km) |
| Darby to Riverdale (Illinois) | 657.70 mi (1,058.47 km) |
| Darby to Riverside (California) | 2,341.46 mi (3,768.21 km) |
| Darby to Riverside (Ohio) | 469.91 mi (756.25 km) |
| Darby to Riverton (Utah) | 1,922.67 mi (3,094.23 km) |
| Darby to Riverton (Wyoming) | 1,718.29 mi (2,765.32 km) |
| Darby to Riverview (Florida) | 927.59 mi (1,492.81 km) |
| Darby to Riverview (Michigan) | 441.49 mi (710.51 km) |
| Darby to Riviera Beach (Florida) | 948.99 mi (1,527.26 km) |
| Darby to Riviera Beach (Maryland) | 85.37 mi (137.39 km) |
| Darby to Roanoke (Virginia) | 312.44 mi (502.82 km) |
| Darby to Roanoke Rapids (North Carolina) | 272.91 mi (439.20 km) |
| Darby to Robbinsdale (Minnesota) | 983.60 mi (1,582.96 km) |
