| Southwater to Silver Firs (Washington) | 4,785.39 mi (7,701.34 km) |
| Southwater to Silver Spring (Maryland) | 3,661.12 mi (5,892.00 km) |
| Southwater to Silver Springs Shores (Florida) | 4,335.42 mi (6,977.18 km) |
| Southwater to Silverdale (Washington) | 4,810.68 mi (7,742.05 km) |
| Southwater to Silverton (Oregon) | 4,965.43 mi (7,991.09 km) |
| Southwater to Simi Valley (California) | 5,459.62 mi (8,786.40 km) |
| Southwater to Simpsonville (South Carolina) | 4,073.53 mi (6,555.71 km) |
| Southwater to Sioux City (Iowa) | 4,252.71 mi (6,844.07 km) |
| Southwater to Sioux Falls (South Dakota) | 4,214.44 mi (6,782.48 km) |
| Southwater to Skokie (Illinois) | 3,951.49 mi (6,359.31 km) |
| Southwater to Sleepy Hollow (New York) | 3,440.83 mi (5,537.48 km) |
| Southwater to Slidell (Louisiana) | 4,600.13 mi (7,403.19 km) |
| Southwater to Smithfield (North Carolina) | 3,874.60 mi (6,235.57 km) |
| Southwater to Smithfield (Utah) | 4,815.70 mi (7,750.13 km) |
| Southwater to Smithville (Missouri) | 4,336.95 mi (6,979.65 km) |
