| Hackettstown to San Luis Obispo (California) | 2,494.90 mi (4,015.16 km) |
| Hackettstown to San Marcos (California) | 2,372.95 mi (3,818.89 km) |
| Hackettstown to San Marcos (Texas) | 1,500.10 mi (2,414.18 km) |
| Hackettstown to San Marino (California) | 2,393.38 mi (3,851.77 km) |
| Hackettstown to San Mateo (California) | 2,521.55 mi (4,058.04 km) |
| Hackettstown to San Pablo (California) | 2,513.35 mi (4,044.85 km) |
| Hackettstown to San Rafael (California) | 2,521.90 mi (4,058.60 km) |
| Hackettstown to San Ramon (California) | 2,497.25 mi (4,018.94 km) |
| Hackettstown to San Tan Valley (Arizona) | 2,078.49 mi (3,345.00 km) |
| Hackettstown to Sand Springs (Oklahoma) | 1,193.82 mi (1,921.28 km) |
| Hackettstown to Sandusky (Ohio) | 411.69 mi (662.55 km) |
| Hackettstown to Sandy (Oregon) | 2,378.01 mi (3,827.03 km) |
| Hackettstown to Sandy (Utah) | 1,924.50 mi (3,097.18 km) |
| Hackettstown to Sandy Springs (Georgia) | 708.36 mi (1,140.00 km) |
| Hackettstown to Sanford (Florida) | 909.66 mi (1,463.96 km) |
