| Boulder to West Falls Church (Virginia) | 1,493.38 mi (2,403.36 km) |
| Boulder to West Fargo (North Dakota) | 630.30 mi (1,014.38 km) |
| Boulder to West Freehold (New Jersey) | 1,627.14 mi (2,618.63 km) |
| Boulder to West Haven (Connecticut) | 1,684.89 mi (2,711.57 km) |
| Boulder to West Haven (Utah) | 365.88 mi (588.82 km) |
| Boulder to West Haverstraw (New York) | 1,632.94 mi (2,627.96 km) |
| Boulder to West Hempstead (New York) | 1,655.40 mi (2,664.11 km) |
| Boulder to West Hollywood (California) | 830.33 mi (1,336.29 km) |
| Boulder to West Islip (New York) | 1,673.70 mi (2,693.57 km) |
| Boulder to West Jordan (Utah) | 357.68 mi (575.63 km) |
| Boulder to West Lafayette (Indiana) | 965.47 mi (1,553.77 km) |
| Boulder to West Lealman (Florida) | 1,534.84 mi (2,470.08 km) |
| Boulder to West Linn (Oregon) | 954.51 mi (1,536.13 km) |
| Boulder to West Little River (Florida) | 1,740.10 mi (2,800.42 km) |
| Boulder to West Melbourne (Florida) | 1,623.45 mi (2,612.69 km) |
