| Middlesex to Pittsburg (Kansas) | 1,103.79 mi (1,776.38 km) |
| Middlesex to Pittsburgh (Pennsylvania) | 287.74 mi (463.07 km) |
| Middlesex to Pittsfield (Massachusetts) | 144.72 mi (232.90 km) |
| Middlesex to Placentia (California) | 2,404.71 mi (3,870.01 km) |
| Middlesex to Placerville (California) | 2,437.57 mi (3,922.89 km) |
| Middlesex to Plainfield (Illinois) | 717.47 mi (1,154.66 km) |
| Middlesex to Plainfield (Indiana) | 629.50 mi (1,013.08 km) |
| Middlesex to Plainfield (New Jersey) | 5.30 mi (8.53 km) |
| Middlesex to Plainview (New York) | 55.76 mi (89.74 km) |
| Middlesex to Plainview (Texas) | 1,551.18 mi (2,496.38 km) |
| Middlesex to Plano (Illinois) | 733.25 mi (1,180.05 km) |
| Middlesex to Plano (Texas) | 1,331.18 mi (2,142.32 km) |
| Middlesex to Plant City (Florida) | 969.73 mi (1,560.63 km) |
| Middlesex to Plantation (Florida) | 1,051.55 mi (1,692.30 km) |
| Middlesex to Platteville (Wisconsin) | 836.32 mi (1,345.93 km) |
