| Holt to Cibolo (Texas) | 1,179.93 mi (1,898.91 km) |
| Holt to Cicero (Illinois) | 174.06 mi (280.13 km) |
| Holt to Cimarron Hills (Colorado) | 1,084.66 mi (1,745.59 km) |
| Holt to Cincinnati (Ohio) | 241.85 mi (389.22 km) |
| Holt to Cinco Ranch (Texas) | 1,087.22 mi (1,749.71 km) |
| Holt to Circleville (Ohio) | 225.59 mi (363.04 km) |
| Holt to Citrus (California) | 1,886.27 mi (3,035.66 km) |
| Holt to Citrus Heights (California) | 1,930.13 mi (3,106.24 km) |
| Holt to Citrus Park (Florida) | 1,012.60 mi (1,629.62 km) |
| Holt to Claiborne (Louisiana) | 813.75 mi (1,309.60 km) |
| Holt to Claremont (California) | 1,877.18 mi (3,021.04 km) |
| Holt to Claremont (New Hampshire) | 617.63 mi (993.97 km) |
| Holt to Claremore (Oklahoma) | 733.94 mi (1,181.17 km) |
| Holt to Clarksburg (Maryland) | 446.45 mi (718.50 km) |
| Holt to Clarksburg (West Virginia) | 319.20 mi (513.70 km) |
