| Poggiomarino to Silver Firs (Washington) | 5,762.40 mi (9,273.68 km) |
| Poggiomarino to Silver Spring (Maryland) | 4,610.40 mi (7,419.72 km) |
| Poggiomarino to Silver Springs Shores (Florida) | 5,249.57 mi (8,448.37 km) |
| Poggiomarino to Silverdale (Washington) | 5,786.91 mi (9,313.13 km) |
| Poggiomarino to Silverton (Oregon) | 5,946.99 mi (9,570.75 km) |
| Poggiomarino to Simi Valley (California) | 6,460.59 mi (10,397.31 km) |
| Poggiomarino to Simpsonville (South Carolina) | 5,018.38 mi (8,076.30 km) |
| Poggiomarino to Sioux City (Iowa) | 5,251.05 mi (8,450.75 km) |
| Poggiomarino to Sioux Falls (South Dakota) | 5,214.22 mi (8,391.47 km) |
| Poggiomarino to Skokie (Illinois) | 4,937.89 mi (7,946.77 km) |
| Poggiomarino to Sleepy Hollow (New York) | 4,391.86 mi (7,068.01 km) |
| Poggiomarino to Slidell (Louisiana) | 5,551.20 mi (8,933.79 km) |
| Poggiomarino to Smithfield (North Carolina) | 4,809.63 mi (7,740.35 km) |
| Poggiomarino to Smithfield (Utah) | 5,816.64 mi (9,360.97 km) |
| Poggiomarino to Smithville (Missouri) | 5,328.08 mi (8,574.72 km) |
