| Hackettstown to Lowell (Indiana) | 656.10 mi (1,055.90 km) |
| Hackettstown to Lowell (Massachusetts) | 218.69 mi (351.94 km) |
| Hackettstown to Lower Burrell (Pennsylvania) | 256.65 mi (413.04 km) |
| Hackettstown to Lowes Island (Virginia) | 183.01 mi (294.52 km) |
| Hackettstown to Lubbock (Texas) | 1,564.54 mi (2,517.88 km) |
| Hackettstown to Lufkin (Texas) | 1,287.20 mi (2,071.54 km) |
| Hackettstown to Luling (Louisiana) | 1,153.43 mi (1,856.26 km) |
| Hackettstown to Lumberton (North Carolina) | 487.02 mi (783.78 km) |
| Hackettstown to Lumberton (Texas) | 1,307.91 mi (2,104.87 km) |
| Hackettstown to Lutz (Florida) | 978.82 mi (1,575.26 km) |
| Hackettstown to Lynbrook (New York) | 61.77 mi (99.41 km) |
| Hackettstown to Lynchburg (Virginia) | 334.10 mi (537.69 km) |
| Hackettstown to Lynden (Washington) | 2,356.04 mi (3,791.68 km) |
| Hackettstown to Lyndhurst (Ohio) | 349.57 mi (562.58 km) |
| Hackettstown to Lyndon (Kentucky) | 600.15 mi (965.85 km) |
