| Hackettstown to Town and Country (Missouri) | 844.47 mi (1,359.05 km) |
| Hackettstown to Towson (Maryland) | 138.37 mi (222.68 km) |
| Hackettstown to Tracy (California) | 2,473.23 mi (3,980.28 km) |
| Hackettstown to Traverse City (Michigan) | 608.55 mi (979.36 km) |
| Hackettstown to Travilah (Maryland) | 178.48 mi (287.24 km) |
| Hackettstown to Trenton (Michigan) | 441.83 mi (711.05 km) |
| Hackettstown to Trenton (New Jersey) | 43.67 mi (70.28 km) |
| Hackettstown to Trenton (Ohio) | 517.30 mi (832.51 km) |
| Hackettstown to Triangle (Virginia) | 207.23 mi (333.51 km) |
| Hackettstown to Trinity (Florida) | 981.57 mi (1,579.69 km) |
| Hackettstown to Trophy Club (Texas) | 1,344.04 mi (2,163.02 km) |
| Hackettstown to Trotwood (Ohio) | 505.04 mi (812.78 km) |
| Hackettstown to Troutdale (Oregon) | 2,382.42 mi (3,834.13 km) |
| Hackettstown to Troy (Alabama) | 879.32 mi (1,415.13 km) |
| Hackettstown to Troy (Illinois) | 812.50 mi (1,307.59 km) |
