| Castle Rock to Parma Heights (Ohio) | 1,219.51 mi (1,962.61 km) |
| Castle Rock to Parole (Maryland) | 1,509.77 mi (2,429.74 km) |
| Castle Rock to Parsippany (New Jersey) | 1,603.48 mi (2,580.56 km) |
| Castle Rock to Pasadena (California) | 817.77 mi (1,316.08 km) |
| Castle Rock to Pasadena (Maryland) | 1,507.68 mi (2,426.37 km) |
| Castle Rock to Pasadena (Texas) | 868.38 mi (1,397.53 km) |
| Castle Rock to Pasadena Hills (Florida) | 1,500.83 mi (2,415.35 km) |
| Castle Rock to Pascagoula (Mississippi) | 1,111.47 mi (1,788.73 km) |
| Castle Rock to Pasco (Washington) | 863.56 mi (1,389.76 km) |
| Castle Rock to Passaic (New Jersey) | 1,618.35 mi (2,604.49 km) |
| Castle Rock to Pataskala (Ohio) | 1,174.76 mi (1,890.60 km) |
| Castle Rock to Patchogue (New York) | 1,676.76 mi (2,698.48 km) |
| Castle Rock to Paterson (New Jersey) | 1,616.13 mi (2,600.92 km) |
| Castle Rock to Patterson (California) | 890.76 mi (1,433.54 km) |
| Castle Rock to Pawtucket (Rhode Island) | 1,752.96 mi (2,821.12 km) |
