| Washington Court House to Siloam Springs (Arkansas) | 647.93 mi (1,042.74 km) |
| Washington Court House to Silver Firs (Washington) | 1,994.58 mi (3,209.97 km) |
| Washington Court House to Silver Spring (Maryland) | 344.65 mi (554.65 km) |
| Washington Court House to Silver Springs Shores (Florida) | 724.80 mi (1,166.46 km) |
| Washington Court House to Silverdale (Washington) | 2,018.88 mi (3,249.07 km) |
| Washington Court House to Silverton (Oregon) | 2,026.50 mi (3,261.34 km) |
| Washington Court House to Simi Valley (California) | 1,972.19 mi (3,173.93 km) |
| Washington Court House to Simpsonville (South Carolina) | 338.49 mi (544.75 km) |
| Washington Court House to Sioux City (Iowa) | 705.13 mi (1,134.80 km) |
| Washington Court House to Sioux Falls (South Dakota) | 740.39 mi (1,191.55 km) |
| Washington Court House to Skokie (Illinois) | 283.96 mi (456.99 km) |
| Washington Court House to Sleepy Hollow (New York) | 514.49 mi (827.99 km) |
| Washington Court House to Slidell (Louisiana) | 733.01 mi (1,179.67 km) |
| Washington Court House to Smithfield (North Carolina) | 393.28 mi (632.93 km) |
| Washington Court House to Smithfield (Utah) | 1,489.47 mi (2,397.06 km) |
