| Boskoop to Silver Firs (Washington) | 4,854.19 mi (7,812.06 km) |
| Boskoop to Silver Spring (Maryland) | 3,838.57 mi (6,177.58 km) |
| Boskoop to Silver Springs Shores (Florida) | 4,524.35 mi (7,281.24 km) |
| Boskoop to Silverdale (Washington) | 4,878.71 mi (7,851.53 km) |
| Boskoop to Silverton (Oregon) | 5,038.93 mi (8,109.37 km) |
| Boskoop to Simi Valley (California) | 5,564.51 mi (8,955.22 km) |
| Boskoop to Simpsonville (South Carolina) | 4,251.79 mi (6,842.59 km) |
| Boskoop to Sioux City (Iowa) | 4,388.23 mi (7,062.17 km) |
| Boskoop to Sioux Falls (South Dakota) | 4,346.69 mi (6,995.33 km) |
| Boskoop to Skokie (Illinois) | 4,103.92 mi (6,604.62 km) |
| Boskoop to Sleepy Hollow (New York) | 3,618.15 mi (5,822.85 km) |
| Boskoop to Slidell (Louisiana) | 4,774.20 mi (7,683.33 km) |
| Boskoop to Smithfield (North Carolina) | 4,057.48 mi (6,529.88 km) |
| Boskoop to Smithfield (Utah) | 4,921.11 mi (7,919.76 km) |
| Boskoop to Smithville (Missouri) | 4,483.35 mi (7,215.26 km) |
