| Gresham to Ridgeland (Mississippi) | 1,937.94 mi (3,118.82 km) |
| Gresham to Ridgewood (New Jersey) | 2,415.42 mi (3,887.25 km) |
| Gresham to Rifle (Colorado) | 851.32 mi (1,370.06 km) |
| Gresham to Rincon (Georgia) | 2,364.80 mi (3,805.78 km) |
| Gresham to Ringwood (New Jersey) | 2,404.21 mi (3,869.21 km) |
| Gresham to Río Grande (Puerto Rico) | 3,715.22 mi (5,979.06 km) |
| Gresham to Rio Grande City (Texas) | 1,854.87 mi (2,985.12 km) |
| Gresham to Rio Linda (California) | 473.61 mi (762.21 km) |
| Gresham to Rio Rancho (New Mexico) | 1,084.81 mi (1,745.83 km) |
| Gresham to Rio Rico (Arizona) | 1,146.30 mi (1,844.80 km) |
| Gresham to Ripon (California) | 540.42 mi (869.73 km) |
| Gresham to River Edge (New Jersey) | 2,420.50 mi (3,895.42 km) |
| Gresham to River Falls (Wisconsin) | 1,444.41 mi (2,324.56 km) |
| Gresham to River Forest (Illinois) | 1,733.64 mi (2,790.03 km) |
| Gresham to River Grove (Illinois) | 1,732.05 mi (2,787.47 km) |
