| Martin to Ridgeland (Mississippi) | 5,322.60 mi (8,565.89 km) |
| Martin to Ridgewood (New Jersey) | 4,284.74 mi (6,895.62 km) |
| Martin to Rifle (Colorado) | 5,506.15 mi (8,861.29 km) |
| Martin to Rincon (Georgia) | 4,987.49 mi (8,026.58 km) |
| Martin to Ringwood (New Jersey) | 4,285.23 mi (6,896.41 km) |
| Martin to Río Grande (Puerto Rico) | 5,033.04 mi (8,099.90 km) |
| Martin to Rio Grande City (Texas) | 5,971.08 mi (9,609.53 km) |
| Martin to Rio Linda (California) | 5,907.88 mi (9,507.82 km) |
| Martin to Rio Rancho (New Mexico) | 5,722.56 mi (9,209.56 km) |
| Martin to Rio Rico (Arizona) | 6,074.93 mi (9,776.65 km) |
| Martin to Ripon (California) | 5,960.08 mi (9,591.83 km) |
| Martin to River Edge (New Jersey) | 4,284.44 mi (6,895.14 km) |
| Martin to River Falls (Wisconsin) | 4,750.64 mi (7,645.42 km) |
| Martin to River Forest (Illinois) | 4,743.61 mi (7,634.10 km) |
| Martin to River Grove (Illinois) | 4,742.75 mi (7,632.72 km) |
