| Middle River to Pottsville (Pennsylvania) | 93.03 mi (149.72 km) |
| Middle River to Poughkeepsie (New York) | 209.01 mi (336.37 km) |
| Middle River to Poulsbo (Washington) | 2,348.93 mi (3,780.24 km) |
| Middle River to Poway (California) | 2,286.89 mi (3,680.39 km) |
| Middle River to Powder Springs (Georgia) | 593.73 mi (955.52 km) |
| Middle River to Powell (Ohio) | 358.11 mi (576.32 km) |
| Middle River to Powell (Tennessee) | 474.21 mi (763.16 km) |
| Middle River to Prairie Ridge (Washington) | 2,328.05 mi (3,746.63 km) |
| Middle River to Prairie Village (Kansas) | 974.21 mi (1,567.84 km) |
| Middle River to Prairieville (Louisiana) | 1,031.39 mi (1,659.86 km) |
| Middle River to Prattville (Alabama) | 734.99 mi (1,182.86 km) |
| Middle River to Preakness (New Jersey) | 160.16 mi (257.76 km) |
| Middle River to Prescott (Arizona) | 2,002.14 mi (3,222.13 km) |
| Middle River to Prescott Valley (Arizona) | 1,994.95 mi (3,210.56 km) |
| Middle River to Prichard (Alabama) | 886.75 mi (1,427.09 km) |
