| Apex to Ridgeland (Mississippi) | 683.81 mi (1,100.49 km) |
| Apex to Ridgewood (New Jersey) | 445.44 mi (716.86 km) |
| Apex to Rifle (Colorado) | 1,596.06 mi (2,568.61 km) |
| Apex to Rincon (Georgia) | 272.77 mi (438.98 km) |
| Apex to Ringwood (New Jersey) | 447.41 mi (720.04 km) |
| Apex to Río Grande (Puerto Rico) | 1,438.83 mi (2,315.57 km) |
| Apex to Rio Grande City (Texas) | 1,341.85 mi (2,159.50 km) |
| Apex to Rio Linda (California) | 2,330.46 mi (3,750.51 km) |
| Apex to Rio Rancho (New Mexico) | 1,560.00 mi (2,510.58 km) |
| Apex to Rio Rico (Arizona) | 1,862.44 mi (2,997.31 km) |
| Apex to Ripon (California) | 2,324.17 mi (3,740.39 km) |
| Apex to River Edge (New Jersey) | 444.74 mi (715.74 km) |
| Apex to River Falls (Wisconsin) | 958.71 mi (1,542.90 km) |
| Apex to River Forest (Illinois) | 642.58 mi (1,034.13 km) |
| Apex to River Grove (Illinois) | 644.59 mi (1,037.37 km) |
