| Castle Rock to Plattsburgh (New York) | 1,641.71 mi (2,642.08 km) |
| Castle Rock to Pleasant Grove (Utah) | 371.54 mi (597.94 km) |
| Castle Rock to Pleasant Hill (California) | 932.88 mi (1,501.32 km) |
| Castle Rock to Pleasant Hill (Iowa) | 615.63 mi (990.75 km) |
| Castle Rock to Pleasant Prairie (Wisconsin) | 909.90 mi (1,464.35 km) |
| Castle Rock to Pleasant View (Utah) | 399.57 mi (643.04 km) |
| Castle Rock to Pleasanton (California) | 926.57 mi (1,491.17 km) |
| Castle Rock to Pleasanton (Texas) | 805.44 mi (1,296.23 km) |
| Castle Rock to Pleasantville (New Jersey) | 1,612.35 mi (2,594.82 km) |
| Castle Rock to Plover (Wisconsin) | 860.45 mi (1,384.77 km) |
| Castle Rock to Plum (Pennsylvania) | 1,327.68 mi (2,136.70 km) |
| Castle Rock to Plymouth (Indiana) | 983.33 mi (1,582.52 km) |
| Castle Rock to Plymouth (Minnesota) | 700.52 mi (1,127.37 km) |
| Castle Rock to Pocatello (Idaho) | 463.70 mi (746.25 km) |
| Castle Rock to Poinciana (Florida) | 1,544.69 mi (2,485.94 km) |
