| Canals to Oxford (Alabama) | 4,584.15 mi (7,377.48 km) |
| Canals to Oxford (Mississippi) | 4,732.10 mi (7,615.58 km) |
| Canals to Oxford (Ohio) | 4,321.40 mi (6,954.62 km) |
| Canals to Oxnard (California) | 6,037.94 mi (9,717.13 km) |
| Canals to Oxon Hill (Maryland) | 3,976.39 mi (6,399.38 km) |
| Canals to Ozark (Alabama) | 4,653.10 mi (7,488.45 km) |
| Canals to Ozark (Missouri) | 4,801.82 mi (7,727.78 km) |
| Canals to Pace (Florida) | 4,759.85 mi (7,660.23 km) |
| Canals to Pacific Grove (California) | 6,018.57 mi (9,685.95 km) |
| Canals to Pacifica (California) | 5,987.42 mi (9,635.82 km) |
| Canals to Paducah (Kentucky) | 4,589.07 mi (7,385.40 km) |
| Canals to Pahrump (Nevada) | 5,812.35 mi (9,354.07 km) |
| Canals to Painesville (Ohio) | 4,087.81 mi (6,578.69 km) |
| Canals to Palatine (Illinois) | 4,382.61 mi (7,053.12 km) |
| Canals to Palatka (Florida) | 4,520.91 mi (7,275.70 km) |
