| Risca to Salisbury (New York) | 3,317.87 mi (5,339.60 km) |
| Risca to Salisbury (North Carolina) | 3,831.55 mi (6,166.29 km) |
| Risca to Salmon Creek (Washington) | 4,815.46 mi (7,749.73 km) |
| Risca to Salt Lake City (Utah) | 4,760.35 mi (7,661.04 km) |
| Risca to Sammamish (Washington) | 4,691.96 mi (7,550.97 km) |
| Risca to San Angelo (Texas) | 4,840.90 mi (7,790.68 km) |
| Risca to San Anselmo (California) | 5,252.96 mi (8,453.82 km) |
| Risca to San Antonio (Texas) | 4,868.93 mi (7,835.78 km) |
| Risca to San Benito (Texas) | 5,008.37 mi (8,060.19 km) |
| Risca to San Bernardino (California) | 5,303.08 mi (8,534.48 km) |
| Risca to San Bruno (California) | 5,269.20 mi (8,479.95 km) |
| Risca to San Buenaventura (California) | 5,359.40 mi (8,625.12 km) |
| Risca to San Carlos (California) | 5,271.51 mi (8,483.67 km) |
| Risca to San Carlos Park (Florida) | 4,334.64 mi (6,975.93 km) |
| Risca to San Clemente (California) | 5,352.52 mi (8,614.05 km) |
