| Gateway to Silver Firs (Washington) | 2,621.23 mi (4,218.47 km) |
| Gateway to Silver Spring (Maryland) | 900.79 mi (1,449.68 km) |
| Gateway to Silver Springs Shores (Florida) | 175.81 mi (282.94 km) |
| Gateway to Silverdale (Washington) | 2,640.18 mi (4,248.96 km) |
| Gateway to Silverton (Oregon) | 2,590.86 mi (4,169.58 km) |
| Gateway to Simi Valley (California) | 2,254.64 mi (3,628.49 km) |
| Gateway to Simpsonville (South Carolina) | 563.89 mi (907.49 km) |
| Gateway to Sioux City (Iowa) | 1,375.55 mi (2,213.73 km) |
| Gateway to Sioux Falls (South Dakota) | 1,441.25 mi (2,319.46 km) |
| Gateway to Skokie (Illinois) | 1,120.65 mi (1,803.52 km) |
| Gateway to Sleepy Hollow (New York) | 1,098.70 mi (1,768.19 km) |
| Gateway to Slidell (Louisiana) | 551.33 mi (887.28 km) |
| Gateway to Smithfield (North Carolina) | 649.04 mi (1,044.53 km) |
| Gateway to Smithfield (Utah) | 2,000.49 mi (3,219.47 km) |
| Gateway to Smithville (Missouri) | 1,153.55 mi (1,856.47 km) |
