| San Marino to Pottstown (Pennsylvania) | 2,352.81 mi (3,786.49 km) |
| San Marino to Pottsville (Pennsylvania) | 2,321.65 mi (3,736.33 km) |
| San Marino to Poughkeepsie (New York) | 2,437.55 mi (3,922.87 km) |
| San Marino to Poulsbo (Washington) | 969.78 mi (1,560.70 km) |
| San Marino to Poway (California) | 100.57 mi (161.85 km) |
| San Marino to Powder Springs (Georgia) | 1,906.38 mi (3,068.03 km) |
| San Marino to Powell (Ohio) | 1,960.64 mi (3,155.35 km) |
| San Marino to Powell (Tennessee) | 1,921.92 mi (3,093.04 km) |
| San Marino to Prairie Ridge (Washington) | 923.81 mi (1,486.72 km) |
| San Marino to Prairie Village (Kansas) | 1,341.50 mi (2,158.94 km) |
| San Marino to Prairieville (Louisiana) | 1,604.17 mi (2,581.67 km) |
| San Marino to Prattville (Alabama) | 1,824.60 mi (2,936.40 km) |
| San Marino to Preakness (New Jersey) | 2,424.43 mi (3,901.74 km) |
| San Marino to Prescott (Arizona) | 324.72 mi (522.59 km) |
| San Marino to Prescott Valley (Arizona) | 332.09 mi (534.45 km) |
