| Mount Washington to Silver Firs (Washington) | 1,949.36 mi (3,137.20 km) |
| Mount Washington to Silver Spring (Maryland) | 465.90 mi (749.79 km) |
| Mount Washington to Silver Springs Shores (Florida) | 649.66 mi (1,045.53 km) |
| Mount Washington to Silverdale (Washington) | 1,972.47 mi (3,174.39 km) |
| Mount Washington to Silverton (Oregon) | 1,966.17 mi (3,164.24 km) |
| Mount Washington to Simi Valley (California) | 1,860.13 mi (2,993.59 km) |
| Mount Washington to Simpsonville (South Carolina) | 293.37 mi (472.14 km) |
| Mount Washington to Sioux City (Iowa) | 648.09 mi (1,042.99 km) |
| Mount Washington to Sioux Falls (South Dakota) | 696.20 mi (1,120.43 km) |
| Mount Washington to Skokie (Illinois) | 299.09 mi (481.34 km) |
| Mount Washington to Sleepy Hollow (New York) | 656.35 mi (1,056.30 km) |
| Mount Washington to Slidell (Louisiana) | 587.57 mi (945.61 km) |
| Mount Washington to Smithfield (North Carolina) | 435.22 mi (700.42 km) |
| Mount Washington to Smithfield (Utah) | 1,410.42 mi (2,269.86 km) |
| Mount Washington to Smithville (Missouri) | 494.87 mi (796.41 km) |
