| Rockville to Salisbury (New York) | 222.41 mi (357.94 km) |
| Rockville to Salisbury (North Carolina) | 298.77 mi (480.82 km) |
| Rockville to Salmon Creek (Washington) | 2,334.18 mi (3,756.51 km) |
| Rockville to Salt Lake City (Utah) | 1,834.15 mi (2,951.78 km) |
| Rockville to Sammamish (Washington) | 2,296.51 mi (3,695.87 km) |
| Rockville to San Angelo (Texas) | 1,411.18 mi (2,271.08 km) |
| Rockville to San Anselmo (California) | 2,429.83 mi (3,910.43 km) |
| Rockville to San Antonio (Texas) | 1,384.36 mi (2,227.90 km) |
| Rockville to San Benito (Texas) | 1,484.97 mi (2,389.83 km) |
| Rockville to San Bernardino (California) | 2,233.84 mi (3,595.01 km) |
| Rockville to San Bruno (California) | 2,429.57 mi (3,910.02 km) |
| Rockville to San Buenaventura (California) | 2,334.16 mi (3,756.47 km) |
| Rockville to San Carlos (California) | 2,423.54 mi (3,900.31 km) |
| Rockville to San Carlos Park (Florida) | 911.84 mi (1,467.47 km) |
| Rockville to San Clemente (California) | 2,268.02 mi (3,650.03 km) |
