| Humacao to Cloverleaf (Texas) | 2,012.18 mi (3,238.29 km) |
| Humacao to Cloverly (Maryland) | 1,595.52 mi (2,567.74 km) |
| Humacao to Clovis (California) | 3,493.27 mi (5,621.87 km) |
| Humacao to Clovis (New Mexico) | 2,554.10 mi (4,110.43 km) |
| Humacao to Clute (Texas) | 2,010.59 mi (3,235.74 km) |
| Humacao to Coachella (California) | 3,271.09 mi (5,264.31 km) |
| Humacao to Coalinga (California) | 3,523.79 mi (5,671.00 km) |
| Humacao to Coamo (Puerto Rico) | 36.06 mi (58.04 km) |
| Humacao to Coatesville (Pennsylvania) | 1,622.18 mi (2,610.65 km) |
| Humacao to Cockeysville (Maryland) | 1,609.35 mi (2,590.00 km) |
| Humacao to Cocoa (Florida) | 1,181.19 mi (1,900.94 km) |
| Humacao to Cocoa Beach (Florida) | 1,172.21 mi (1,886.49 km) |
| Humacao to Coconut Creek (Florida) | 1,075.54 mi (1,730.91 km) |
| Humacao to Coeur d'Alene (Idaho) | 3,504.45 mi (5,639.88 km) |
| Humacao to Cohoes (New York) | 1,762.82 mi (2,836.98 km) |
