| San Marino to Crawfordsville (Indiana) | 1,758.88 mi (2,830.64 km) |
| San Marino to Crest Hill (Illinois) | 1,705.92 mi (2,745.41 km) |
| San Marino to Crestview (Florida) | 1,846.31 mi (2,971.35 km) |
| San Marino to Crestwood (Illinois) | 1,725.67 mi (2,777.20 km) |
| San Marino to Crestwood (Missouri) | 1,567.46 mi (2,522.59 km) |
| San Marino to Creve Coeur (Missouri) | 1,564.33 mi (2,517.55 km) |
| San Marino to Crofton (Maryland) | 2,303.91 mi (3,707.79 km) |
| San Marino to Crossville (Tennessee) | 1,866.95 mi (3,004.56 km) |
| San Marino to Crowley (Louisiana) | 1,525.08 mi (2,454.38 km) |
| San Marino to Crowley (Texas) | 1,200.54 mi (1,932.08 km) |
| San Marino to Crown Point (Indiana) | 1,743.91 mi (2,806.56 km) |
| San Marino to Crystal (Minnesota) | 1,509.71 mi (2,429.65 km) |
| San Marino to Crystal Lake (Illinois) | 1,701.36 mi (2,738.08 km) |
| San Marino to Cudahy (California) | 11.71 mi (18.84 km) |
| San Marino to Cudahy (Wisconsin) | 1,733.42 mi (2,789.67 km) |
