| Middlesex to Pikesville (Maryland) | 142.41 mi (229.18 km) |
| Middlesex to Pine Bluff (Arkansas) | 1,054.76 mi (1,697.48 km) |
| Middlesex to Pine Castle (Florida) | 922.86 mi (1,485.20 km) |
| Middlesex to Pine Hill (New Jersey) | 60.06 mi (96.66 km) |
| Middlesex to Pine Hills (Florida) | 917.75 mi (1,476.98 km) |
| Middlesex to Pinecrest (Florida) | 1,082.81 mi (1,742.61 km) |
| Middlesex to Pinehurst (North Carolina) | 459.89 mi (740.12 km) |
| Middlesex to Pinellas Park (Florida) | 994.70 mi (1,600.82 km) |
| Middlesex to Pineville (Louisiana) | 1,183.93 mi (1,905.34 km) |
| Middlesex to Pineville (North Carolina) | 514.87 mi (828.60 km) |
| Middlesex to Pinewood (Florida) | 1,067.71 mi (1,718.32 km) |
| Middlesex to Piney Green (North Carolina) | 430.91 mi (693.49 km) |
| Middlesex to Pinole (California) | 2,530.16 mi (4,071.89 km) |
| Middlesex to Piqua (Ohio) | 513.51 mi (826.41 km) |
| Middlesex to Pittsburg (California) | 2,509.72 mi (4,039.00 km) |
