| Canals to Point Pleasant (New Jersey) | 3,798.28 mi (6,112.74 km) |
| Canals to Pomona (California) | 5,989.00 mi (9,638.37 km) |
| Canals to Pompano Beach (Florida) | 4,569.50 mi (7,353.90 km) |
| Canals to Pompton Lakes (New Jersey) | 3,782.41 mi (6,087.21 km) |
| Canals to Pompton Plains (New Jersey) | 3,784.41 mi (6,090.42 km) |
| Canals to Ponca City (Oklahoma) | 4,988.84 mi (8,028.76 km) |
| Canals to Ponce (Puerto Rico) | 4,169.42 mi (6,710.03 km) |
| Canals to Pontiac (Illinois) | 4,451.96 mi (7,164.74 km) |
| Canals to Pontiac (Michigan) | 4,151.74 mi (6,681.58 km) |
| Canals to Pooler (Georgia) | 4,410.64 mi (7,098.24 km) |
| Canals to Poplar Bluff (Missouri) | 4,682.98 mi (7,536.53 km) |
| Canals to Poquoson (Virginia) | 3,997.98 mi (6,434.13 km) |
| Canals to Port Angeles (Washington) | 5,476.34 mi (8,813.32 km) |
| Canals to Port Arthur (Texas) | 5,120.82 mi (8,241.16 km) |
| Canals to Port Charlotte (Florida) | 4,643.34 mi (7,472.74 km) |
