| Holt to Cloverleaf (Texas) | 1,066.01 mi (1,715.58 km) |
| Holt to Cloverly (Maryland) | 462.85 mi (744.88 km) |
| Holt to Clovis (California) | 1,896.10 mi (3,051.48 km) |
| Holt to Clovis (New Mexico) | 1,153.20 mi (1,855.90 km) |
| Holt to Clute (Texas) | 1,118.35 mi (1,799.81 km) |
| Holt to Coachella (California) | 1,812.55 mi (2,917.01 km) |
| Holt to Coalinga (California) | 1,947.82 mi (3,134.71 km) |
| Holt to Coamo (Puerto Rico) | 2,003.62 mi (3,224.51 km) |
| Holt to Coatesville (Pennsylvania) | 487.61 mi (784.73 km) |
| Holt to Cockeysville (Maryland) | 465.72 mi (749.51 km) |
| Holt to Cocoa (Florida) | 1,007.43 mi (1,621.30 km) |
| Holt to Cocoa Beach (Florida) | 1,012.43 mi (1,629.35 km) |
| Holt to Coconut Creek (Florida) | 1,156.82 mi (1,861.72 km) |
| Holt to Coeur d'Alene (Idaho) | 1,597.58 mi (2,571.06 km) |
| Holt to Cohoes (New York) | 549.20 mi (883.86 km) |
