| Boulder to West St. Paul (Minnesota) | 704.73 mi (1,134.16 km) |
| Boulder to West University Place (Texas) | 902.75 mi (1,452.83 km) |
| Boulder to West Valley City (Utah) | 358.77 mi (577.38 km) |
| Boulder to West Whittier-Los Nietos (California) | 820.25 mi (1,320.07 km) |
| Boulder to Westbrook (Maine) | 1,800.15 mi (2,897.06 km) |
| Boulder to Westbury (New York) | 1,657.92 mi (2,668.16 km) |
| Boulder to Westchase (Florida) | 1,530.47 mi (2,463.05 km) |
| Boulder to Westchester (Florida) | 1,739.58 mi (2,799.59 km) |
| Boulder to Westchester (Illinois) | 913.32 mi (1,469.85 km) |
| Boulder to Western Springs (Illinois) | 912.69 mi (1,468.84 km) |
| Boulder to Westerville (Ohio) | 1,177.58 mi (1,895.12 km) |
| Boulder to Westfield (Indiana) | 1,008.53 mi (1,623.07 km) |
| Boulder to Westfield (Massachusetts) | 1,688.48 mi (2,717.35 km) |
| Boulder to Westfield (New Jersey) | 1,620.00 mi (2,607.14 km) |
| Boulder to Westlake (Ohio) | 1,221.26 mi (1,965.43 km) |
