| Castle Rock to West St. Paul (Minnesota) | 712.53 mi (1,146.70 km) |
| Castle Rock to West University Place (Texas) | 855.08 mi (1,376.11 km) |
| Castle Rock to West Valley City (Utah) | 389.30 mi (626.52 km) |
| Castle Rock to West Whittier-Los Nietos (California) | 820.74 mi (1,320.86 km) |
| Castle Rock to Westbrook (Maine) | 1,795.76 mi (2,890.00 km) |
| Castle Rock to Westbury (New York) | 1,647.14 mi (2,650.82 km) |
| Castle Rock to Westchase (Florida) | 1,492.16 mi (2,401.40 km) |
| Castle Rock to Westchester (Florida) | 1,700.56 mi (2,736.79 km) |
| Castle Rock to Westchester (Illinois) | 904.39 mi (1,455.48 km) |
| Castle Rock to Western Springs (Illinois) | 903.59 mi (1,454.19 km) |
| Castle Rock to Westerville (Ohio) | 1,163.28 mi (1,872.12 km) |
| Castle Rock to Westfield (Indiana) | 993.27 mi (1,598.51 km) |
| Castle Rock to Westfield (Massachusetts) | 1,680.70 mi (2,704.83 km) |
| Castle Rock to Westfield (New Jersey) | 1,608.84 mi (2,589.18 km) |
| Castle Rock to Westlake (Ohio) | 1,210.85 mi (1,948.68 km) |
