| San Marino to Cordele (Georgia) | 1,985.52 mi (3,195.39 km) |
| San Marino to Corinth (Mississippi) | 1,679.51 mi (2,702.91 km) |
| San Marino to Corinth (Texas) | 1,210.41 mi (1,947.97 km) |
| San Marino to Cornelius (North Carolina) | 2,101.97 mi (3,382.79 km) |
| San Marino to Cornelius (Oregon) | 829.44 mi (1,334.85 km) |
| San Marino to Corning (New York) | 2,275.85 mi (3,662.63 km) |
| San Marino to Corona (California) | 36.21 mi (58.28 km) |
| San Marino to Coronado (California) | 114.72 mi (184.63 km) |
| San Marino to Corpus Christi (Texas) | 1,303.21 mi (2,097.31 km) |
| San Marino to Corsicana (Texas) | 1,258.42 mi (2,025.23 km) |
| San Marino to Cortland (New York) | 2,320.85 mi (3,735.05 km) |
| San Marino to Corvallis (Oregon) | 772.37 mi (1,243.01 km) |
| San Marino to Coshocton (Ohio) | 2,025.87 mi (3,260.32 km) |
| San Marino to Costa Mesa (California) | 33.50 mi (53.92 km) |
| San Marino to Coto de Caza (California) | 47.31 mi (76.14 km) |
