| Hackettstown to Petersburg (Virginia) | 287.28 mi (462.34 km) |
| Hackettstown to Pflugerville (Texas) | 1,460.43 mi (2,350.34 km) |
| Hackettstown to Pharr (Texas) | 1,676.44 mi (2,697.97 km) |
| Hackettstown to Phelan (California) | 2,353.78 mi (3,788.04 km) |
| Hackettstown to Phenix City (Alabama) | 808.88 mi (1,301.76 km) |
| Hackettstown to Philadelphia (Pennsylvania) | 60.68 mi (97.65 km) |
| Hackettstown to Phillipsburg (New Jersey) | 21.84 mi (35.15 km) |
| Hackettstown to Phoenix (Arizona) | 2,094.40 mi (3,370.62 km) |
| Hackettstown to Phoenixville (Pennsylvania) | 61.59 mi (99.11 km) |
| Hackettstown to Picayune (Mississippi) | 1,093.88 mi (1,760.42 km) |
| Hackettstown to Pickerington (Ohio) | 423.20 mi (681.07 km) |
| Hackettstown to Pico Rivera (California) | 2,395.86 mi (3,855.76 km) |
| Hackettstown to Piedmont (California) | 2,510.89 mi (4,040.89 km) |
| Hackettstown to Pierre (South Dakota) | 1,313.40 mi (2,113.71 km) |
| Hackettstown to Pike Creek Valley (Delaware) | 90.31 mi (145.33 km) |
