| River Grove to Owosso (Michigan) | 200.78 mi (323.12 km) |
| River Grove to Oxford (Alabama) | 585.30 mi (941.95 km) |
| River Grove to Oxford (Mississippi) | 530.49 mi (853.73 km) |
| River Grove to Oxford (Ohio) | 232.69 mi (374.48 km) |
| River Grove to Oxnard (California) | 1,775.41 mi (2,857.24 km) |
| River Grove to Oxon Hill (Maryland) | 611.18 mi (983.59 km) |
| River Grove to Ozark (Alabama) | 733.68 mi (1,180.75 km) |
| River Grove to Ozark (Missouri) | 442.86 mi (712.72 km) |
| River Grove to Pace (Florida) | 782.02 mi (1,258.54 km) |
| River Grove to Pacific Grove (California) | 1,847.11 mi (2,972.63 km) |
| River Grove to Pacifica (California) | 1,850.79 mi (2,978.55 km) |
| River Grove to Paducah (Kentucky) | 338.06 mi (544.06 km) |
| River Grove to Pahrump (Nevada) | 1,553.25 mi (2,499.71 km) |
| River Grove to Painesville (Ohio) | 339.21 mi (545.91 km) |
| River Grove to Palatine (Illinois) | 17.03 mi (27.40 km) |
