| Watertown Town to Siloam Springs (Arkansas) | 1,315.14 mi (2,116.51 km) |
| Watertown Town to Silver Firs (Washington) | 2,468.15 mi (3,972.10 km) |
| Watertown Town to Silver Spring (Maryland) | 384.36 mi (618.56 km) |
| Watertown Town to Silver Springs Shores (Florida) | 1,097.20 mi (1,765.77 km) |
| Watertown Town to Silverdale (Washington) | 2,495.03 mi (4,015.36 km) |
| Watertown Town to Silverton (Oregon) | 2,540.78 mi (4,088.99 km) |
| Watertown Town to Simi Valley (California) | 2,603.83 mi (4,190.46 km) |
| Watertown Town to Simpsonville (South Carolina) | 796.99 mi (1,282.63 km) |
| Watertown Town to Sioux City (Iowa) | 1,281.00 mi (2,061.56 km) |
| Watertown Town to Sioux Falls (South Dakota) | 1,289.65 mi (2,075.50 km) |
| Watertown Town to Skokie (Illinois) | 846.68 mi (1,362.61 km) |
| Watertown Town to Sleepy Hollow (New York) | 164.56 mi (264.84 km) |
| Watertown Town to Slidell (Louisiana) | 1,324.97 mi (2,132.33 km) |
| Watertown Town to Smithfield (North Carolina) | 610.24 mi (982.09 km) |
| Watertown Town to Smithfield (Utah) | 2,063.98 mi (3,321.66 km) |
