| Middle River to Pell City (Alabama) | 676.65 mi (1,088.96 km) |
| Middle River to Pella (Iowa) | 878.39 mi (1,413.63 km) |
| Middle River to Pembroke Pines (Florida) | 948.48 mi (1,526.44 km) |
| Middle River to Pendleton (Oregon) | 2,176.71 mi (3,503.08 km) |
| Middle River to Pensacola (Florida) | 865.09 mi (1,392.23 km) |
| Middle River to Peoria (Arizona) | 2,013.88 mi (3,241.02 km) |
| Middle River to Peoria (Illinois) | 703.71 mi (1,132.51 km) |
| Middle River to Perris (California) | 2,276.70 mi (3,664.00 km) |
| Middle River to Perry (Georgia) | 625.99 mi (1,007.43 km) |
| Middle River to Perry Hall (Maryland) | 5.20 mi (8.36 km) |
| Middle River to Perrysburg (Ohio) | 408.45 mi (657.34 km) |
| Middle River to Perth Amboy (New Jersey) | 140.06 mi (225.41 km) |
| Middle River to Peru (Indiana) | 519.39 mi (835.88 km) |
| Middle River to Petal (Mississippi) | 907.53 mi (1,460.53 km) |
| Middle River to Petaluma (California) | 2,461.67 mi (3,961.67 km) |
