| Rockville to Sanford (Maine) | 447.42 mi (720.05 km) |
| Rockville to Sanford (North Carolina) | 272.16 mi (437.99 km) |
| Rockville to Sanger (California) | 2,296.96 mi (3,696.60 km) |
| Rockville to Santa Ana (California) | 2,275.31 mi (3,661.75 km) |
| Rockville to Santa Barbara (California) | 2,356.50 mi (3,792.42 km) |
| Rockville to Santa Clara (California) | 2,410.49 mi (3,879.31 km) |
| Rockville to Santa Clara (Oregon) | 2,369.68 mi (3,813.63 km) |
| Rockville to Santa Clarita (California) | 2,291.42 mi (3,687.69 km) |
| Rockville to Santa Cruz (California) | 2,421.89 mi (3,897.66 km) |
| Rockville to Santa Fe (New Mexico) | 1,593.57 mi (2,564.61 km) |
| Rockville to Santa Fe (Texas) | 1,220.91 mi (1,964.87 km) |
| Rockville to Santa Fe Springs (California) | 2,280.07 mi (3,669.42 km) |
| Rockville to Santa Maria (California) | 2,382.96 mi (3,835.01 km) |
| Rockville to Santa Monica (California) | 2,300.21 mi (3,701.84 km) |
| Rockville to Santa Paula (California) | 2,323.35 mi (3,739.07 km) |
