| Castle Rock to Newport East (Rhode Island) | 1,760.00 mi (2,832.44 km) |
| Castle Rock to Newport News (Virginia) | 1,539.30 mi (2,477.26 km) |
| Castle Rock to Newton (Iowa) | 640.11 mi (1,030.16 km) |
| Castle Rock to Newton (Kansas) | 415.15 mi (668.12 km) |
| Castle Rock to Newton (Massachusetts) | 1,758.57 mi (2,830.14 km) |
| Castle Rock to Newton (North Carolina) | 1,315.60 mi (2,117.25 km) |
| Castle Rock to Niagara Falls (New York) | 1,361.23 mi (2,190.69 km) |
| Castle Rock to Niceville (Florida) | 1,203.56 mi (1,936.94 km) |
| Castle Rock to Nicholasville (Kentucky) | 1,097.40 mi (1,766.10 km) |
| Castle Rock to Niles (Illinois) | 909.72 mi (1,464.06 km) |
| Castle Rock to Niles (Michigan) | 988.64 mi (1,591.07 km) |
| Castle Rock to Niles (Ohio) | 1,272.37 mi (2,047.68 km) |
| Castle Rock to Nipomo (California) | 910.34 mi (1,465.05 km) |
| Castle Rock to Nixa (Missouri) | 647.28 mi (1,041.70 km) |
| Castle Rock to Noblesville (Indiana) | 1,001.11 mi (1,611.14 km) |
