| Middletown to Marrero (Louisiana) | 739.85 mi (1,190.68 km) |
| Middletown to Marshall (Minnesota) | 678.11 mi (1,091.32 km) |
| Middletown to Marshall (Missouri) | 472.90 mi (761.06 km) |
| Middletown to Marshall (Texas) | 736.07 mi (1,184.60 km) |
| Middletown to Marshalltown (Iowa) | 479.65 mi (771.92 km) |
| Middletown to Marshfield (Wisconsin) | 464.23 mi (747.10 km) |
| Middletown to Martha Lake (Washington) | 1,956.13 mi (3,148.09 km) |
| Middletown to Martin (Tennessee) | 327.92 mi (527.73 km) |
| Middletown to Martinez (California) | 2,021.87 mi (3,253.88 km) |
| Middletown to Martinez (Georgia) | 432.05 mi (695.32 km) |
| Middletown to Martinsburg (West Virginia) | 340.62 mi (548.18 km) |
| Middletown to Martinsville (Indiana) | 110.36 mi (177.61 km) |
| Middletown to Martinsville (New Jersey) | 523.07 mi (841.80 km) |
| Middletown to Martinsville (Virginia) | 312.85 mi (503.48 km) |
| Middletown to Maryland City (Maryland) | 405.07 mi (651.90 km) |
