| Rancho San Diego to Ridgeland (Mississippi) | 1,554.43 mi (2,501.62 km) |
| Rancho San Diego to Ridgewood (New Jersey) | 2,407.98 mi (3,875.27 km) |
| Rancho San Diego to Rifle (Colorado) | 691.73 mi (1,113.23 km) |
| Rancho San Diego to Rincon (Georgia) | 2,069.03 mi (3,329.78 km) |
| Rancho San Diego to Ringwood (New Jersey) | 2,399.49 mi (3,861.60 km) |
| Rancho San Diego to Río Grande (Puerto Rico) | 3,301.35 mi (5,313.01 km) |
| Rancho San Diego to Rio Grande City (Texas) | 1,171.50 mi (1,885.35 km) |
| Rancho San Diego to Rio Linda (California) | 481.43 mi (774.79 km) |
| Rancho San Diego to Rio Rancho (New Mexico) | 610.43 mi (982.39 km) |
| Rancho San Diego to Rio Rico (Arizona) | 357.85 mi (575.91 km) |
| Rancho San Diego to Ripon (California) | 418.00 mi (672.71 km) |
| Rancho San Diego to River Edge (New Jersey) | 2,411.87 mi (3,881.53 km) |
| Rancho San Diego to River Falls (Wisconsin) | 1,542.96 mi (2,483.15 km) |
| Rancho San Diego to River Forest (Illinois) | 1,708.49 mi (2,749.55 km) |
| Rancho San Diego to River Grove (Illinois) | 1,707.99 mi (2,748.74 km) |
