| Midlothian to Silver Firs (Washington) | 1,688.55 mi (2,717.45 km) |
| Midlothian to Silver Spring (Maryland) | 1,204.29 mi (1,938.12 km) |
| Midlothian to Silver Springs Shores (Florida) | 917.60 mi (1,476.74 km) |
| Midlothian to Silverdale (Washington) | 1,703.47 mi (2,741.47 km) |
| Midlothian to Silverton (Oregon) | 1,626.95 mi (2,618.33 km) |
| Midlothian to Simi Valley (California) | 1,259.38 mi (2,026.78 km) |
| Midlothian to Simpsonville (South Carolina) | 861.29 mi (1,386.12 km) |
| Midlothian to Sioux City (Iowa) | 693.71 mi (1,116.42 km) |
| Midlothian to Sioux Falls (South Dakota) | 765.18 mi (1,231.43 km) |
| Midlothian to Skokie (Illinois) | 833.08 mi (1,340.72 km) |
| Midlothian to Sleepy Hollow (New York) | 1,405.52 mi (2,261.96 km) |
| Midlothian to Slidell (Louisiana) | 450.82 mi (725.52 km) |
| Midlothian to Smithfield (North Carolina) | 1,086.61 mi (1,748.74 km) |
| Midlothian to Smithfield (Utah) | 1,039.81 mi (1,673.41 km) |
| Midlothian to Smithville (Missouri) | 497.11 mi (800.03 km) |
