| Castricum to Pottsville (Pennsylvania) | 3,717.23 mi (5,982.30 km) |
| Castricum to Poughkeepsie (New York) | 3,581.57 mi (5,763.99 km) |
| Castricum to Poulsbo (Washington) | 4,846.16 mi (7,799.14 km) |
| Castricum to Poway (California) | 5,564.94 mi (8,955.91 km) |
| Castricum to Powder Springs (Georgia) | 4,378.94 mi (7,047.23 km) |
| Castricum to Powell (Ohio) | 4,005.47 mi (6,446.18 km) |
| Castricum to Powell (Tennessee) | 4,244.45 mi (6,830.78 km) |
| Castricum to Prairie Ridge (Washington) | 4,869.52 mi (7,836.74 km) |
| Castricum to Prairie Village (Kansas) | 4,489.10 mi (7,224.51 km) |
| Castricum to Prairieville (Louisiana) | 4,805.92 mi (7,734.38 km) |
| Castricum to Prattville (Alabama) | 4,519.85 mi (7,273.99 km) |
| Castricum to Preakness (New Jersey) | 3,627.73 mi (5,838.27 km) |
| Castricum to Prescott (Arizona) | 5,330.27 mi (8,578.24 km) |
| Castricum to Prescott Valley (Arizona) | 5,325.44 mi (8,570.47 km) |
| Castricum to Prichard (Alabama) | 4,672.31 mi (7,519.36 km) |
