| Drogheda to Ridgeland (Mississippi) | 4,208.44 mi (6,772.83 km) |
| Drogheda to Ridgewood (New Jersey) | 3,161.30 mi (5,087.62 km) |
| Drogheda to Rifle (Colorado) | 4,490.48 mi (7,226.73 km) |
| Drogheda to Rincon (Georgia) | 3,859.95 mi (6,211.99 km) |
| Drogheda to Ringwood (New Jersey) | 3,162.23 mi (5,089.12 km) |
| Drogheda to Río Grande (Puerto Rico) | 3,963.40 mi (6,378.47 km) |
| Drogheda to Rio Grande City (Texas) | 4,864.67 mi (7,828.93 km) |
| Drogheda to Rio Linda (California) | 4,979.02 mi (8,012.95 km) |
| Drogheda to Rio Rancho (New Mexico) | 4,679.98 mi (7,531.71 km) |
| Drogheda to Rio Rico (Arizona) | 5,038.64 mi (8,108.91 km) |
| Drogheda to Ripon (California) | 5,023.53 mi (8,084.58 km) |
| Drogheda to River Edge (New Jersey) | 3,160.81 mi (5,086.83 km) |
| Drogheda to River Falls (Wisconsin) | 3,691.31 mi (5,940.59 km) |
| Drogheda to River Forest (Illinois) | 3,652.89 mi (5,878.75 km) |
| Drogheda to River Grove (Illinois) | 3,652.21 mi (5,877.66 km) |
