| Imperial to Silver Firs (Washington) | 1,093.32 mi (1,759.53 km) |
| Imperial to Silver Spring (Maryland) | 2,181.94 mi (3,511.50 km) |
| Imperial to Silver Springs Shores (Florida) | 1,996.13 mi (3,212.47 km) |
| Imperial to Silverdale (Washington) | 1,089.76 mi (1,753.80 km) |
| Imperial to Silverton (Oregon) | 924.54 mi (1,487.90 km) |
| Imperial to Simi Valley (California) | 207.81 mi (334.43 km) |
| Imperial to Simpsonville (South Carolina) | 1,908.91 mi (3,072.09 km) |
| Imperial to Sioux City (Iowa) | 1,238.82 mi (1,993.68 km) |
| Imperial to Sioux Falls (South Dakota) | 1,257.44 mi (2,023.65 km) |
| Imperial to Skokie (Illinois) | 1,644.45 mi (2,646.49 km) |
| Imperial to Sleepy Hollow (New York) | 2,347.94 mi (3,778.64 km) |
| Imperial to Slidell (Louisiana) | 1,524.63 mi (2,453.66 km) |
| Imperial to Smithfield (North Carolina) | 2,123.16 mi (3,416.90 km) |
| Imperial to Smithfield (Utah) | 654.54 mi (1,053.38 km) |
| Imperial to Smithville (Missouri) | 1,252.70 mi (2,016.02 km) |
