| Nieuwpoort to Silver Firs (Washington) | 4,860.67 mi (7,822.49 km) |
| Nieuwpoort to Silver Spring (Maryland) | 3,785.79 mi (6,092.64 km) |
| Nieuwpoort to Silver Springs Shores (Florida) | 4,464.17 mi (7,184.38 km) |
| Nieuwpoort to Silverdale (Washington) | 4,885.57 mi (7,862.57 km) |
| Nieuwpoort to Silverton (Oregon) | 5,043.21 mi (8,116.25 km) |
| Nieuwpoort to Simi Valley (California) | 5,553.24 mi (8,937.08 km) |
| Nieuwpoort to Simpsonville (South Carolina) | 4,198.58 mi (6,756.96 km) |
| Nieuwpoort to Sioux City (Iowa) | 4,360.24 mi (7,017.12 km) |
| Nieuwpoort to Sioux Falls (South Dakota) | 4,320.48 mi (6,953.14 km) |
| Nieuwpoort to Skokie (Illinois) | 4,066.30 mi (6,544.09 km) |
| Nieuwpoort to Sleepy Hollow (New York) | 3,565.40 mi (5,737.96 km) |
| Nieuwpoort to Slidell (Louisiana) | 4,723.74 mi (7,602.12 km) |
| Nieuwpoort to Smithfield (North Carolina) | 4,001.26 mi (6,439.40 km) |
| Nieuwpoort to Smithfield (Utah) | 4,909.36 mi (7,900.85 km) |
| Nieuwpoort to Smithville (Missouri) | 4,449.30 mi (7,160.46 km) |
