| Hackettstown to Cordele (Georgia) | 789.82 mi (1,271.09 km) |
| Hackettstown to Corinth (Mississippi) | 849.19 mi (1,366.64 km) |
| Hackettstown to Corinth (Texas) | 1,333.12 mi (2,145.44 km) |
| Hackettstown to Cornelius (North Carolina) | 496.20 mi (798.56 km) |
| Hackettstown to Cornelius (Oregon) | 2,413.91 mi (3,884.81 km) |
| Hackettstown to Corning (New York) | 145.94 mi (234.87 km) |
| Hackettstown to Corona (California) | 2,372.18 mi (3,817.65 km) |
| Hackettstown to Coronado (California) | 2,386.32 mi (3,840.41 km) |
| Hackettstown to Corpus Christi (Texas) | 1,567.08 mi (2,521.96 km) |
| Hackettstown to Corsicana (Texas) | 1,341.49 mi (2,158.92 km) |
| Hackettstown to Cortland (New York) | 139.37 mi (224.29 km) |
| Hackettstown to Corvallis (Oregon) | 2,436.92 mi (3,921.84 km) |
| Hackettstown to Coshocton (Ohio) | 370.79 mi (596.72 km) |
| Hackettstown to Costa Mesa (California) | 2,395.99 mi (3,855.97 km) |
| Hackettstown to Coto de Caza (California) | 2,380.93 mi (3,831.74 km) |
