| Hackettstown to Land O' Lakes (Florida) | 974.57 mi (1,568.41 km) |
| Hackettstown to Landover (Maryland) | 172.41 mi (277.46 km) |
| Hackettstown to Langley Park (Maryland) | 172.13 mi (277.02 km) |
| Hackettstown to Lanham (Maryland) | 168.84 mi (271.72 km) |
| Hackettstown to Lansdale (Pennsylvania) | 48.60 mi (78.21 km) |
| Hackettstown to Lansdowne (Pennsylvania) | 67.40 mi (108.47 km) |
| Hackettstown to Lansdowne (Virginia) | 186.43 mi (300.03 km) |
| Hackettstown to Lansing (Illinois) | 662.42 mi (1,066.06 km) |
| Hackettstown to Lansing (Kansas) | 1,065.06 mi (1,714.06 km) |
| Hackettstown to Lansing (Michigan) | 517.39 mi (832.66 km) |
| Hackettstown to Lantana (Florida) | 1,030.27 mi (1,658.06 km) |
| Hackettstown to Lantana (Texas) | 1,337.54 mi (2,152.56 km) |
| Hackettstown to Laplace (Louisiana) | 1,150.26 mi (1,851.17 km) |
| Hackettstown to Laramie (Wyoming) | 1,595.03 mi (2,566.95 km) |
| Hackettstown to Laredo (Texas) | 1,672.72 mi (2,691.98 km) |
