| Penacova to Silver Firs (Washington) | 5,126.97 mi (8,251.06 km) |
| Penacova to Silver Spring (Maryland) | 3,561.71 mi (5,732.02 km) |
| Penacova to Silver Springs Shores (Florida) | 4,139.96 mi (6,662.63 km) |
| Penacova to Silverdale (Washington) | 5,154.28 mi (8,295.02 km) |
| Penacova to Silverton (Oregon) | 5,285.85 mi (8,506.75 km) |
| Penacova to Simi Valley (California) | 5,648.46 mi (9,090.31 km) |
| Penacova to Simpsonville (South Carolina) | 3,953.72 mi (6,362.90 km) |
| Penacova to Sioux City (Iowa) | 4,347.27 mi (6,996.26 km) |
| Penacova to Sioux Falls (South Dakota) | 4,324.98 mi (6,960.39 km) |
| Penacova to Skokie (Illinois) | 3,976.52 mi (6,399.59 km) |
| Penacova to Sleepy Hollow (New York) | 3,351.56 mi (5,393.82 km) |
| Penacova to Slidell (Louisiana) | 4,487.63 mi (7,222.14 km) |
| Penacova to Smithfield (North Carolina) | 3,733.75 mi (6,008.89 km) |
| Penacova to Smithfield (Utah) | 5,020.44 mi (8,079.62 km) |
| Penacova to Smithville (Missouri) | 4,377.86 mi (7,045.48 km) |
