| San Marino to Central Point (Oregon) | 626.63 mi (1,008.46 km) |
| San Marino to Centralia (Illinois) | 1,635.15 mi (2,631.52 km) |
| San Marino to Centralia (Washington) | 906.80 mi (1,459.36 km) |
| San Marino to Centreville (Virginia) | 2,264.24 mi (3,643.93 km) |
| San Marino to Ceres (California) | 288.10 mi (463.65 km) |
| San Marino to Cerritos (California) | 17.78 mi (28.61 km) |
| San Marino to Chalco (Nebraska) | 1,292.90 mi (2,080.72 km) |
| San Marino to Chalmette (Louisiana) | 1,668.30 mi (2,684.88 km) |
| San Marino to Chambersburg (Pennsylvania) | 2,247.86 mi (3,617.58 km) |
| San Marino to Chamblee (Georgia) | 1,927.81 mi (3,102.51 km) |
| San Marino to Champaign (Illinois) | 1,686.66 mi (2,714.42 km) |
| San Marino to Champlin (Minnesota) | 1,511.69 mi (2,432.84 km) |
| San Marino to Chandler (Arizona) | 364.52 mi (586.64 km) |
| San Marino to Chanhassen (Minnesota) | 1,495.91 mi (2,407.43 km) |
| San Marino to Channahon (Illinois) | 1,696.97 mi (2,731.00 km) |
