| Canals to Silver Firs (Washington) | 5,448.71 mi (8,768.85 km) |
| Canals to Silver Spring (Maryland) | 3,972.12 mi (6,392.51 km) |
| Canals to Silver Springs Shores (Florida) | 4,558.33 mi (7,335.92 km) |
| Canals to Silverdale (Washington) | 5,475.45 mi (8,811.88 km) |
| Canals to Silverton (Oregon) | 5,615.50 mi (9,037.28 km) |
| Canals to Simi Valley (California) | 6,017.50 mi (9,684.23 km) |
| Canals to Simpsonville (South Carolina) | 4,367.13 mi (7,028.22 km) |
| Canals to Sioux City (Iowa) | 4,731.69 mi (7,614.92 km) |
| Canals to Sioux Falls (South Dakota) | 4,706.06 mi (7,573.67 km) |
| Canals to Skokie (Illinois) | 4,371.91 mi (7,035.90 km) |
| Canals to Sleepy Hollow (New York) | 3,760.15 mi (6,051.37 km) |
| Canals to Slidell (Louisiana) | 4,901.57 mi (7,888.31 km) |
| Canals to Smithfield (North Carolina) | 4,148.35 mi (6,676.13 km) |
| Canals to Smithfield (Utah) | 5,382.85 mi (8,662.86 km) |
| Canals to Smithville (Missouri) | 4,772.24 mi (7,680.18 km) |
