| Dumas to Ridgeland (Mississippi) | 715.65 mi (1,151.72 km) |
| Dumas to Ridgewood (New Jersey) | 1,541.53 mi (2,480.86 km) |
| Dumas to Rifle (Colorado) | 406.43 mi (654.08 km) |
| Dumas to Rincon (Georgia) | 1,209.15 mi (1,945.94 km) |
| Dumas to Ringwood (New Jersey) | 1,533.77 mi (2,468.36 km) |
| Dumas to Río Grande (Puerto Rico) | 2,508.05 mi (4,036.32 km) |
| Dumas to Rio Grande City (Texas) | 680.78 mi (1,095.61 km) |
| Dumas to Rio Linda (California) | 1,086.38 mi (1,748.35 km) |
| Dumas to Rio Rancho (New Mexico) | 268.95 mi (432.84 km) |
| Dumas to Rio Rico (Arizona) | 599.78 mi (965.25 km) |
| Dumas to Ripon (California) | 1,066.42 mi (1,716.23 km) |
| Dumas to River Edge (New Jersey) | 1,545.11 mi (2,486.62 km) |
| Dumas to River Falls (Wisconsin) | 791.59 mi (1,273.95 km) |
| Dumas to River Forest (Illinois) | 865.97 mi (1,393.64 km) |
| Dumas to River Grove (Illinois) | 865.93 mi (1,393.58 km) |
