| Middletown to Jeffersontown (Kentucky) | 110.66 mi (178.09 km) |
| Middletown to Jeffersonville (Indiana) | 107.93 mi (173.70 km) |
| Middletown to Jenison (Michigan) | 247.07 mi (397.63 km) |
| Middletown to Jenks (Oklahoma) | 678.17 mi (1,091.41 km) |
| Middletown to Jennings (Missouri) | 320.72 mi (516.14 km) |
| Middletown to Jensen Beach (Florida) | 879.55 mi (1,415.50 km) |
| Middletown to Jericho (New York) | 578.15 mi (930.44 km) |
| Middletown to Jerome (Idaho) | 1,576.64 mi (2,537.36 km) |
| Middletown to Jersey City (New Jersey) | 550.24 mi (885.53 km) |
| Middletown to Jessup (Maryland) | 406.21 mi (653.74 km) |
| Middletown to Johns Creek (Georgia) | 378.05 mi (608.41 km) |
| Middletown to Johnson City (New York) | 474.99 mi (764.42 km) |
| Middletown to Johnson City (Tennessee) | 243.83 mi (392.40 km) |
| Middletown to Johnston (Iowa) | 513.35 mi (826.16 km) |
| Middletown to Johnstown (Colorado) | 1,089.67 mi (1,753.65 km) |
