| Garden Grove to Romeoville (Illinois) | 1,710.05 mi (2,752.06 km) |
| Garden Grove to Romulus (Michigan) | 1,956.57 mi (3,148.79 km) |
| Garden Grove to Ronkonkoma (New York) | 2,484.19 mi (3,997.91 km) |
| Garden Grove to Roosevelt (New York) | 2,460.71 mi (3,960.13 km) |
| Garden Grove to Rosamond (California) | 76.51 mi (123.13 km) |
| Garden Grove to Rosaryville (Maryland) | 2,297.59 mi (3,697.62 km) |
| Garden Grove to Roscoe (Illinois) | 1,673.63 mi (2,693.44 km) |
| Garden Grove to Rose Hill (Virginia) | 2,282.35 mi (3,673.08 km) |
| Garden Grove to Roseburg (Oregon) | 714.31 mi (1,149.57 km) |
| Garden Grove to Rosedale (California) | 131.88 mi (212.25 km) |
| Garden Grove to Rosedale (Maryland) | 2,311.93 mi (3,720.68 km) |
| Garden Grove to Roselle (Illinois) | 1,714.54 mi (2,759.29 km) |
| Garden Grove to Roselle (New Jersey) | 2,425.43 mi (3,903.35 km) |
| Garden Grove to Roselle Park (New Jersey) | 2,425.03 mi (3,902.71 km) |
| Garden Grove to Rosemead (California) | 21.24 mi (34.18 km) |
