| Garden Grove to Rockville (Maryland) | 2,278.44 mi (3,666.79 km) |
| Garden Grove to Rockville Centre (New York) | 2,457.91 mi (3,955.63 km) |
| Garden Grove to Rockwall (Texas) | 1,241.40 mi (1,997.84 km) |
| Garden Grove to Rocky Mount (North Carolina) | 2,265.26 mi (3,645.58 km) |
| Garden Grove to Rocky Point (New York) | 2,493.45 mi (4,012.82 km) |
| Garden Grove to Rocky River (Ohio) | 2,030.10 mi (3,267.13 km) |
| Garden Grove to Roessleville (New York) | 2,445.10 mi (3,935.01 km) |
| Garden Grove to Rogers (Arkansas) | 1,354.54 mi (2,179.92 km) |
| Garden Grove to Rogers (Minnesota) | 1,511.43 mi (2,432.42 km) |
| Garden Grove to Rohnert Park (California) | 411.75 mi (662.65 km) |
| Garden Grove to Rolla (Missouri) | 1,489.85 mi (2,397.68 km) |
| Garden Grove to Rolling Meadows (Illinois) | 1,718.69 mi (2,765.97 km) |
| Garden Grove to Roma (Texas) | 1,239.34 mi (1,994.53 km) |
| Garden Grove to Rome (Georgia) | 1,868.92 mi (3,007.74 km) |
| Garden Grove to Rome (New York) | 2,359.77 mi (3,797.68 km) |
