| Hackettstown to Willow Grove (Pennsylvania) | 51.20 mi (82.40 km) |
| Hackettstown to Willowbrook (California) | 2,405.50 mi (3,871.27 km) |
| Hackettstown to Willowick (Ohio) | 349.16 mi (561.92 km) |
| Hackettstown to Wilmette (Illinois) | 672.70 mi (1,082.60 km) |
| Hackettstown to Wilmington (Delaware) | 85.62 mi (137.80 km) |
| Hackettstown to Wilmington (North Carolina) | 488.65 mi (786.40 km) |
| Hackettstown to Wilmington (Ohio) | 484.50 mi (779.72 km) |
| Hackettstown to Wilmington Island (Georgia) | 700.13 mi (1,126.75 km) |
| Hackettstown to Wilson (North Carolina) | 391.84 mi (630.61 km) |
| Hackettstown to Wilsonville (Oregon) | 2,402.99 mi (3,867.24 km) |
| Hackettstown to Wilton Manors (Florida) | 1,059.88 mi (1,705.72 km) |
| Hackettstown to Wimauma (Florida) | 1,003.36 mi (1,614.76 km) |
| Hackettstown to Winchester (Kentucky) | 536.90 mi (864.06 km) |
| Hackettstown to Winchester (Nevada) | 2,184.63 mi (3,515.82 km) |
| Hackettstown to Winchester (Virginia) | 211.84 mi (340.93 km) |
