| Slupca to Storm Lake (Iowa) | 4,761.44 mi (7,662.80 km) |
| Slupca to Storrs (Connecticut) | 4,023.25 mi (6,474.80 km) |
| Slupca to Stoughton (Wisconsin) | 4,557.92 mi (7,335.27 km) |
| Slupca to Stow (Ohio) | 4,385.94 mi (7,058.49 km) |
| Slupca to Streamwood (Illinois) | 4,571.65 mi (7,357.36 km) |
| Slupca to Streator (Illinois) | 4,640.82 mi (7,468.67 km) |
| Slupca to Streetsboro (Ohio) | 4,379.61 mi (7,048.30 km) |
| Slupca to Strongsville (Ohio) | 4,392.87 mi (7,069.65 km) |
| Slupca to Stuart (Florida) | 5,074.82 mi (8,167.13 km) |
| Slupca to Stuarts Draft (Virginia) | 4,461.24 mi (7,179.67 km) |
| Slupca to Sturgis (Michigan) | 4,491.12 mi (7,227.76 km) |
| Slupca to Suamico (Wisconsin) | 4,430.49 mi (7,130.18 km) |
| Slupca to Sudley (Virginia) | 4,365.70 mi (7,025.92 km) |
| Slupca to Suffern (New York) | 4,126.72 mi (6,641.32 km) |
| Slupca to Suffolk (Virginia) | 4,439.99 mi (7,145.47 km) |
