| Hackettstown to Cloverleaf (Texas) | 1,373.08 mi (2,209.76 km) |
| Hackettstown to Cloverly (Maryland) | 166.80 mi (268.44 km) |
| Hackettstown to Clovis (California) | 2,403.62 mi (3,868.25 km) |
| Hackettstown to Clovis (New Mexico) | 1,606.02 mi (2,584.63 km) |
| Hackettstown to Clute (Texas) | 1,417.33 mi (2,280.96 km) |
| Hackettstown to Coachella (California) | 2,302.81 mi (3,706.02 km) |
| Hackettstown to Coalinga (California) | 2,454.00 mi (3,949.33 km) |
| Hackettstown to Coamo (Puerto Rico) | 1,651.98 mi (2,658.60 km) |
| Hackettstown to Coatesville (Pennsylvania) | 79.63 mi (128.15 km) |
| Hackettstown to Cockeysville (Maryland) | 134.44 mi (216.37 km) |
| Hackettstown to Cocoa (Florida) | 924.98 mi (1,488.62 km) |
| Hackettstown to Cocoa Beach (Florida) | 925.35 mi (1,489.21 km) |
| Hackettstown to Coconut Creek (Florida) | 1,052.56 mi (1,693.94 km) |
| Hackettstown to Coeur d'Alene (Idaho) | 2,102.03 mi (3,382.89 km) |
| Hackettstown to Cohoes (New York) | 144.56 mi (232.65 km) |
