| River Grove to Pike Creek Valley (Delaware) | 651.90 mi (1,049.14 km) |
| River Grove to Pikesville (Maryland) | 608.89 mi (979.91 km) |
| River Grove to Pine Bluff (Arkansas) | 579.16 mi (932.08 km) |
| River Grove to Pine Castle (Florida) | 998.20 mi (1,606.45 km) |
| River Grove to Pine Hill (New Jersey) | 686.96 mi (1,105.55 km) |
| River Grove to Pine Hills (Florida) | 988.67 mi (1,591.12 km) |
| River Grove to Pinecrest (Florida) | 1,202.55 mi (1,935.32 km) |
| River Grove to Pinehurst (North Carolina) | 648.09 mi (1,042.99 km) |
| River Grove to Pinellas Park (Florida) | 1,013.86 mi (1,631.64 km) |
| River Grove to Pineville (Louisiana) | 773.57 mi (1,244.95 km) |
| River Grove to Pineville (North Carolina) | 603.09 mi (970.59 km) |
| River Grove to Pinewood (Florida) | 1,190.98 mi (1,916.69 km) |
| River Grove to Piney Green (North Carolina) | 754.34 mi (1,213.99 km) |
| River Grove to Pinole (California) | 1,831.82 mi (2,948.03 km) |
| River Grove to Piqua (Ohio) | 223.79 mi (360.16 km) |
