| Rockwall to Silver Firs (Washington) | 1,688.58 mi (2,717.50 km) |
| Rockwall to Silver Spring (Maryland) | 1,161.56 mi (1,869.35 km) |
| Rockwall to Silver Springs Shores (Florida) | 892.68 mi (1,436.63 km) |
| Rockwall to Silverdale (Washington) | 1,704.15 mi (2,742.56 km) |
| Rockwall to Silverton (Oregon) | 1,632.27 mi (2,626.89 km) |
| Rockwall to Simi Valley (California) | 1,284.95 mi (2,067.93 km) |
| Rockwall to Simpsonville (South Carolina) | 822.82 mi (1,324.19 km) |
| Rockwall to Sioux City (Iowa) | 661.85 mi (1,065.14 km) |
| Rockwall to Sioux Falls (South Dakota) | 734.13 mi (1,181.47 km) |
| Rockwall to Skokie (Illinois) | 789.26 mi (1,270.19 km) |
| Rockwall to Sleepy Hollow (New York) | 1,361.96 mi (2,191.86 km) |
| Rockwall to Slidell (Louisiana) | 431.54 mi (694.49 km) |
| Rockwall to Smithfield (North Carolina) | 1,047.36 mi (1,685.57 km) |
| Rockwall to Smithfield (Utah) | 1,043.10 mi (1,678.72 km) |
| Rockwall to Smithville (Missouri) | 459.26 mi (739.10 km) |
