| Grays to Silver Firs (Washington) | 4,778.57 mi (7,690.36 km) |
| Grays to Silver Spring (Maryland) | 3,679.02 mi (5,920.81 km) |
| Grays to Silver Springs Shores (Florida) | 4,356.76 mi (7,011.53 km) |
| Grays to Silverdale (Washington) | 4,803.72 mi (7,730.84 km) |
| Grays to Silverton (Oregon) | 4,959.59 mi (7,981.68 km) |
| Grays to Simi Valley (California) | 5,460.37 mi (8,787.62 km) |
| Grays to Simpsonville (South Carolina) | 4,091.73 mi (6,585.01 km) |
| Grays to Sioux City (Iowa) | 4,260.05 mi (6,855.89 km) |
| Grays to Sioux Falls (South Dakota) | 4,221.00 mi (6,793.05 km) |
| Grays to Skokie (Illinois) | 3,962.85 mi (6,377.60 km) |
| Grays to Sleepy Hollow (New York) | 3,458.65 mi (5,566.16 km) |
| Grays to Slidell (Louisiana) | 4,617.26 mi (7,430.76 km) |
| Grays to Smithfield (North Carolina) | 3,894.09 mi (6,266.94 km) |
| Grays to Smithfield (Utah) | 4,816.42 mi (7,751.28 km) |
| Grays to Smithville (Missouri) | 4,346.92 mi (6,995.69 km) |
