| Hackettstown to Crawfordsville (Indiana) | 636.69 mi (1,024.66 km) |
| Hackettstown to Crest Hill (Illinois) | 691.69 mi (1,113.17 km) |
| Hackettstown to Crestview (Florida) | 958.10 mi (1,541.91 km) |
| Hackettstown to Crestwood (Illinois) | 672.44 mi (1,082.18 km) |
| Hackettstown to Crestwood (Missouri) | 840.63 mi (1,352.86 km) |
| Hackettstown to Creve Coeur (Missouri) | 842.04 mi (1,355.14 km) |
| Hackettstown to Crofton (Maryland) | 160.63 mi (258.52 km) |
| Hackettstown to Crossville (Tennessee) | 647.37 mi (1,041.83 km) |
| Hackettstown to Crowley (Louisiana) | 1,226.39 mi (1,973.68 km) |
| Hackettstown to Crowley (Texas) | 1,367.47 mi (2,200.74 km) |
| Hackettstown to Crown Point (Indiana) | 652.11 mi (1,049.47 km) |
| Hackettstown to Crystal (Minnesota) | 978.41 mi (1,574.59 km) |
| Hackettstown to Crystal Lake (Illinois) | 704.32 mi (1,133.49 km) |
| Hackettstown to Cudahy (California) | 2,401.55 mi (3,864.91 km) |
| Hackettstown to Cudahy (Wisconsin) | 685.18 mi (1,102.69 km) |
