| Northampton to Jeffersonville (Indiana) | 3,989.28 mi (6,420.13 km) |
| Northampton to Jenison (Michigan) | 3,779.77 mi (6,082.95 km) |
| Northampton to Jenks (Oklahoma) | 4,499.28 mi (7,240.90 km) |
| Northampton to Jennings (Missouri) | 4,146.79 mi (6,673.61 km) |
| Northampton to Jensen Beach (Florida) | 4,314.92 mi (6,944.19 km) |
| Northampton to Jericho (New York) | 3,392.73 mi (5,460.08 km) |
| Northampton to Jerome (Idaho) | 4,777.73 mi (7,689.02 km) |
| Northampton to Jersey City (New Jersey) | 3,417.07 mi (5,499.25 km) |
| Northampton to Jessup (Maryland) | 3,596.64 mi (5,788.23 km) |
| Northampton to Johns Creek (Georgia) | 4,138.50 mi (6,660.27 km) |
| Northampton to Johnson City (New York) | 3,431.56 mi (5,522.57 km) |
| Northampton to Johnson City (Tennessee) | 3,953.30 mi (6,362.21 km) |
| Northampton to Johnston (Iowa) | 4,131.05 mi (6,648.28 km) |
| Northampton to Johnstown (Colorado) | 4,596.02 mi (7,396.57 km) |
| Northampton to Johnstown (Pennsylvania) | 3,629.07 mi (5,840.42 km) |
