| Two Rivers to Siloam Springs (Arkansas) | 661.25 mi (1,064.18 km) |
| Two Rivers to Silver Firs (Washington) | 1,664.18 mi (2,678.24 km) |
| Two Rivers to Silver Spring (Maryland) | 650.94 mi (1,047.59 km) |
| Two Rivers to Silver Springs Shores (Florida) | 1,083.61 mi (1,743.91 km) |
| Two Rivers to Silverdale (Washington) | 1,689.93 mi (2,719.68 km) |
| Two Rivers to Silverton (Oregon) | 1,719.52 mi (2,767.30 km) |
| Two Rivers to Simi Valley (California) | 1,789.49 mi (2,879.90 km) |
| Two Rivers to Simpsonville (South Carolina) | 710.27 mi (1,143.08 km) |
| Two Rivers to Sioux City (Iowa) | 457.07 mi (735.58 km) |
| Two Rivers to Sioux Falls (South Dakota) | 457.62 mi (736.46 km) |
| Two Rivers to Skokie (Illinois) | 146.73 mi (236.14 km) |
| Two Rivers to Sleepy Hollow (New York) | 727.42 mi (1,170.66 km) |
| Two Rivers to Slidell (Louisiana) | 965.69 mi (1,554.12 km) |
| Two Rivers to Smithfield (North Carolina) | 771.35 mi (1,241.37 km) |
| Two Rivers to Smithfield (Utah) | 1,231.08 mi (1,981.24 km) |
