| Trenton to Ridgefield Park (New Jersey) | 58.52 mi (94.18 km) |
| Trenton to Ridgeland (Mississippi) | 1,009.61 mi (1,624.82 km) |
| Trenton to Ridgewood (New Jersey) | 62.56 mi (100.68 km) |
| Trenton to Rifle (Colorado) | 1,740.66 mi (2,801.32 km) |
| Trenton to Rincon (Georgia) | 655.38 mi (1,054.73 km) |
| Trenton to Ringwood (New Jersey) | 66.16 mi (106.48 km) |
| Trenton to Río Grande (Puerto Rico) | 1,600.09 mi (2,575.09 km) |
| Trenton to Rio Grande City (Texas) | 1,677.65 mi (2,699.92 km) |
| Trenton to Rio Linda (California) | 2,463.38 mi (3,964.43 km) |
| Trenton to Rio Rancho (New Mexico) | 1,767.55 mi (2,844.60 km) |
| Trenton to Rio Rico (Arizona) | 2,099.93 mi (3,379.51 km) |
| Trenton to Ripon (California) | 2,467.79 mi (3,971.53 km) |
| Trenton to River Edge (New Jersey) | 61.72 mi (99.33 km) |
| Trenton to River Falls (Wisconsin) | 961.60 mi (1,547.54 km) |
| Trenton to River Forest (Illinois) | 689.19 mi (1,109.14 km) |
