| Hercules to Silver Firs (Washington) | 681.08 mi (1,096.09 km) |
| Hercules to Silver Spring (Maryland) | 2,421.25 mi (3,896.63 km) |
| Hercules to Silver Springs Shores (Florida) | 2,377.24 mi (3,825.79 km) |
| Hercules to Silverdale (Washington) | 667.78 mi (1,074.69 km) |
| Hercules to Silverton (Oregon) | 484.18 mi (779.21 km) |
| Hercules to Simi Valley (California) | 324.10 mi (521.60 km) |
| Hercules to Simpsonville (South Carolina) | 2,219.82 mi (3,572.45 km) |
| Hercules to Sioux City (Iowa) | 1,393.00 mi (2,241.82 km) |
| Hercules to Sioux Falls (South Dakota) | 1,383.04 mi (2,225.80 km) |
| Hercules to Skokie (Illinois) | 1,834.76 mi (2,952.76 km) |
| Hercules to Sleepy Hollow (New York) | 2,553.37 mi (4,109.26 km) |
| Hercules to Slidell (Louisiana) | 1,921.00 mi (3,091.56 km) |
| Hercules to Smithfield (North Carolina) | 2,414.00 mi (3,884.95 km) |
| Hercules to Smithfield (Utah) | 612.15 mi (985.16 km) |
| Hercules to Smithville (Missouri) | 1,489.91 mi (2,397.77 km) |
