| Parker to Ridgeland (Mississippi) | 951.45 mi (1,531.21 km) |
| Parker to Ridgewood (New Jersey) | 1,611.98 mi (2,594.24 km) |
| Parker to Rifle (Colorado) | 159.77 mi (257.12 km) |
| Parker to Rincon (Georgia) | 1,403.48 mi (2,258.69 km) |
| Parker to Ringwood (New Jersey) | 1,602.63 mi (2,579.19 km) |
| Parker to Río Grande (Puerto Rico) | 2,738.60 mi (4,407.35 km) |
| Parker to Rio Grande City (Texas) | 969.88 mi (1,560.87 km) |
| Parker to Rio Linda (California) | 894.19 mi (1,439.06 km) |
| Parker to Rio Rancho (New Mexico) | 310.14 mi (499.12 km) |
| Parker to Rio Rico (Arizona) | 654.29 mi (1,052.98 km) |
| Parker to Ripon (California) | 890.00 mi (1,432.32 km) |
| Parker to River Edge (New Jersey) | 1,616.26 mi (2,601.11 km) |
| Parker to River Falls (Wisconsin) | 722.58 mi (1,162.87 km) |
| Parker to River Forest (Illinois) | 901.77 mi (1,451.27 km) |
| Parker to River Grove (Illinois) | 901.00 mi (1,450.02 km) |
