| Middlesex to Point Pleasant (New Jersey) | 41.17 mi (66.26 km) |
| Middlesex to Pomona (California) | 2,394.88 mi (3,854.19 km) |
| Middlesex to Pompano Beach (Florida) | 1,041.48 mi (1,676.10 km) |
| Middlesex to Pompton Lakes (New Jersey) | 31.64 mi (50.92 km) |
| Middlesex to Pompton Plains (New Jersey) | 29.01 mi (46.69 km) |
| Middlesex to Ponca City (Oklahoma) | 1,242.76 mi (2,000.04 km) |
| Middlesex to Ponce (Puerto Rico) | 1,627.80 mi (2,619.68 km) |
| Middlesex to Pontiac (Illinois) | 739.83 mi (1,190.64 km) |
| Middlesex to Pontiac (Michigan) | 475.74 mi (765.63 km) |
| Middlesex to Pooler (Georgia) | 695.08 mi (1,118.62 km) |
| Middlesex to Poplar Bluff (Missouri) | 896.42 mi (1,442.64 km) |
| Middlesex to Poquoson (Virginia) | 257.95 mi (415.13 km) |
| Middlesex to Port Angeles (Washington) | 2,431.48 mi (3,913.10 km) |
| Middlesex to Port Arthur (Texas) | 1,318.43 mi (2,121.81 km) |
| Middlesex to Port Charlotte (Florida) | 1,034.24 mi (1,664.45 km) |
