| Highland to Silver Firs (Washington) | 984.56 mi (1,584.50 km) |
| Highland to Silver Spring (Maryland) | 2,235.24 mi (3,597.28 km) |
| Highland to Silver Springs Shores (Florida) | 2,086.49 mi (3,357.88 km) |
| Highland to Silverdale (Washington) | 979.24 mi (1,575.94 km) |
| Highland to Silverton (Oregon) | 809.30 mi (1,302.44 km) |
| Highland to Simi Valley (California) | 91.16 mi (146.71 km) |
| Highland to Simpsonville (South Carolina) | 1,979.99 mi (3,186.49 km) |
| Highland to Sioux City (Iowa) | 1,261.96 mi (2,030.92 km) |
| Highland to Sioux Falls (South Dakota) | 1,273.20 mi (2,049.02 km) |
| Highland to Skokie (Illinois) | 1,681.66 mi (2,706.38 km) |
| Highland to Sleepy Hollow (New York) | 2,393.15 mi (3,851.40 km) |
| Highland to Slidell (Louisiana) | 1,617.59 mi (2,603.27 km) |
| Highland to Smithfield (North Carolina) | 2,189.78 mi (3,524.11 km) |
| Highland to Smithfield (Utah) | 607.41 mi (977.53 km) |
| Highland to Smithville (Missouri) | 1,298.79 mi (2,090.19 km) |
