| San Marino to West St. Paul (Minnesota) | 1,518.85 mi (2,444.36 km) |
| San Marino to West University Place (Texas) | 1,361.47 mi (2,191.08 km) |
| San Marino to West Valley City (Utah) | 563.53 mi (906.92 km) |
| San Marino to West Whittier-Los Nietos (California) | 10.44 mi (16.79 km) |
| San Marino to Westbrook (Maine) | 2,613.38 mi (4,205.83 km) |
| San Marino to Westbury (New York) | 2,458.32 mi (3,956.29 km) |
| San Marino to Westchase (Florida) | 2,130.89 mi (3,429.33 km) |
| San Marino to Westchester (Florida) | 2,319.72 mi (3,733.22 km) |
| San Marino to Westchester (Illinois) | 1,719.88 mi (2,767.88 km) |
| San Marino to Western Springs (Illinois) | 1,718.92 mi (2,766.33 km) |
| San Marino to Westerville (Ohio) | 1,969.14 mi (3,169.02 km) |
| San Marino to Westfield (Indiana) | 1,798.18 mi (2,893.88 km) |
| San Marino to Westfield (Massachusetts) | 2,496.09 mi (4,017.07 km) |
| San Marino to Westfield (New Jersey) | 2,419.40 mi (3,893.65 km) |
| San Marino to Westlake (Ohio) | 2,023.73 mi (3,256.89 km) |
