| Portage to Ridgeland (Mississippi) | 720.12 mi (1,158.92 km) |
| Portage to Ridgewood (New Jersey) | 598.59 mi (963.34 km) |
| Portage to Rifle (Colorado) | 1,170.12 mi (1,883.12 km) |
| Portage to Rincon (Georgia) | 724.82 mi (1,166.49 km) |
| Portage to Ringwood (New Jersey) | 588.59 mi (947.25 km) |
| Portage to Río Grande (Puerto Rico) | 2,013.24 mi (3,240.00 km) |
| Portage to Rio Grande City (Texas) | 1,324.98 mi (2,132.35 km) |
| Portage to Rio Linda (California) | 1,886.67 mi (3,036.31 km) |
| Portage to Rio Rancho (New Mexico) | 1,229.47 mi (1,978.65 km) |
| Portage to Rio Rico (Arizona) | 1,578.54 mi (2,540.41 km) |
| Portage to Ripon (California) | 1,892.94 mi (3,046.39 km) |
| Portage to River Edge (New Jersey) | 603.16 mi (970.69 km) |
| Portage to River Falls (Wisconsin) | 397.24 mi (639.30 km) |
| Portage to River Forest (Illinois) | 116.28 mi (187.13 km) |
| Portage to River Grove (Illinois) | 116.84 mi (188.03 km) |
