| Barstow to Silver Firs (Washington) | 935.66 mi (1,505.79 km) |
| Barstow to Silver Spring (Maryland) | 2,211.10 mi (3,558.43 km) |
| Barstow to Silver Springs Shores (Florida) | 2,080.17 mi (3,347.71 km) |
| Barstow to Silverdale (Washington) | 930.93 mi (1,498.19 km) |
| Barstow to Silverton (Oregon) | 762.92 mi (1,227.80 km) |
| Barstow to Simi Valley (California) | 105.33 mi (169.50 km) |
| Barstow to Simpsonville (South Carolina) | 1,963.83 mi (3,160.47 km) |
| Barstow to Sioux City (Iowa) | 1,228.26 mi (1,976.70 km) |
| Barstow to Sioux Falls (South Dakota) | 1,237.16 mi (1,991.02 km) |
| Barstow to Skokie (Illinois) | 1,652.03 mi (2,658.68 km) |
| Barstow to Sleepy Hollow (New York) | 2,365.73 mi (3,807.27 km) |
| Barstow to Slidell (Louisiana) | 1,613.34 mi (2,596.43 km) |
| Barstow to Smithfield (North Carolina) | 2,171.35 mi (3,494.45 km) |
| Barstow to Smithfield (Utah) | 558.17 mi (898.29 km) |
| Barstow to Smithville (Missouri) | 1,273.13 mi (2,048.91 km) |
