| Grinon to Ridgeland (Mississippi) | 4,641.79 mi (7,470.24 km) |
| Grinon to Ridgewood (New Jersey) | 3,580.45 mi (5,762.18 km) |
| Grinon to Rifle (Colorado) | 5,138.91 mi (8,270.28 km) |
| Grinon to Rincon (Georgia) | 4,209.57 mi (6,774.65 km) |
| Grinon to Ringwood (New Jersey) | 3,584.70 mi (5,769.02 km) |
| Grinon to Río Grande (Puerto Rico) | 3,941.74 mi (6,343.62 km) |
| Grinon to Rio Grande City (Texas) | 5,309.36 mi (8,544.58 km) |
| Grinon to Rio Linda (California) | 5,712.17 mi (9,192.85 km) |
| Grinon to Rio Rancho (New Mexico) | 5,281.79 mi (8,500.22 km) |
| Grinon to Rio Rico (Arizona) | 5,640.53 mi (9,077.56 km) |
| Grinon to Ripon (California) | 5,748.39 mi (9,251.14 km) |
| Grinon to River Edge (New Jersey) | 3,578.47 mi (5,758.98 km) |
| Grinon to River Falls (Wisconsin) | 4,294.73 mi (6,911.69 km) |
| Grinon to River Forest (Illinois) | 4,187.16 mi (6,738.58 km) |
| Grinon to River Grove (Illinois) | 4,186.99 mi (6,738.32 km) |
