| Castricum to West St. Paul (Minnesota) | 4,135.08 mi (6,654.77 km) |
| Castricum to West University Place (Texas) | 5,008.36 mi (8,060.17 km) |
| Castricum to West Valley City (Utah) | 4,968.33 mi (7,995.75 km) |
| Castricum to West Whittier-Los Nietos (California) | 5,538.21 mi (8,912.88 km) |
| Castricum to Westbrook (Maine) | 3,353.93 mi (5,397.62 km) |
| Castricum to Westbury (New York) | 3,610.87 mi (5,811.14 km) |
| Castricum to Westchase (Florida) | 4,593.96 mi (7,393.26 km) |
| Castricum to Westchester (Florida) | 4,622.00 mi (7,438.39 km) |
| Castricum to Westchester (Illinois) | 4,102.27 mi (6,601.97 km) |
| Castricum to Western Springs (Illinois) | 4,104.93 mi (6,606.25 km) |
| Castricum to Westerville (Ohio) | 4,001.50 mi (6,439.79 km) |
| Castricum to Westfield (Indiana) | 4,127.28 mi (6,642.22 km) |
| Castricum to Westfield (Massachusetts) | 3,516.12 mi (5,658.64 km) |
| Castricum to Westfield (New Jersey) | 3,645.49 mi (5,866.84 km) |
| Castricum to Westlake (Ohio) | 3,900.58 mi (6,277.37 km) |
