| Hackettstown to Carrollwood (Florida) | 985.69 mi (1,586.31 km) |
| Hackettstown to Carson (California) | 2,408.95 mi (3,876.83 km) |
| Hackettstown to Carson City (Nevada) | 2,354.22 mi (3,788.75 km) |
| Hackettstown to Carteret (New Jersey) | 36.39 mi (58.56 km) |
| Hackettstown to Cartersville (Georgia) | 715.07 mi (1,150.79 km) |
| Hackettstown to Carthage (Missouri) | 1,075.20 mi (1,730.37 km) |
| Hackettstown to Cary (Illinois) | 699.86 mi (1,126.32 km) |
| Hackettstown to Cary (North Carolina) | 411.81 mi (662.75 km) |
| Hackettstown to Casa de Oro-Mount Helix (California) | 2,373.31 mi (3,819.47 km) |
| Hackettstown to Casa Grande (Arizona) | 2,097.04 mi (3,374.86 km) |
| Hackettstown to Casas Adobes (Arizona) | 2,075.21 mi (3,339.73 km) |
| Hackettstown to Cascades (Virginia) | 184.40 mi (296.76 km) |
| Hackettstown to Casper (Wyoming) | 1,617.36 mi (2,602.89 km) |
| Hackettstown to Casselberry (Florida) | 918.82 mi (1,478.70 km) |
| Hackettstown to Castaic (California) | 2,410.34 mi (3,879.07 km) |
