| Risca to Storm Lake (Iowa) | 4,080.48 mi (6,566.91 km) |
| Risca to Storrs (Connecticut) | 3,219.24 mi (5,180.86 km) |
| Risca to Stoughton (Wisconsin) | 3,844.05 mi (6,186.40 km) |
| Risca to Stow (Ohio) | 3,618.86 mi (5,823.99 km) |
| Risca to Streamwood (Illinois) | 3,845.37 mi (6,188.53 km) |
| Risca to Streator (Illinois) | 3,911.77 mi (6,295.38 km) |
| Risca to Streetsboro (Ohio) | 3,612.52 mi (5,813.79 km) |
| Risca to Strongsville (Ohio) | 3,628.66 mi (5,839.76 km) |
| Risca to Stuart (Florida) | 4,231.77 mi (6,810.38 km) |
| Risca to Stuarts Draft (Virginia) | 3,663.16 mi (5,895.29 km) |
| Risca to Sturgis (Michigan) | 3,748.46 mi (6,032.57 km) |
| Risca to Suamico (Wisconsin) | 3,723.28 mi (5,992.04 km) |
| Risca to Sudley (Virginia) | 3,565.32 mi (5,737.83 km) |
| Risca to Suffern (New York) | 3,326.14 mi (5,352.90 km) |
| Risca to Suffolk (Virginia) | 3,624.32 mi (5,832.78 km) |
