| Rockville to St. Simons (Georgia) | 596.07 mi (959.27 km) |
| Rockville to Stafford (Texas) | 1,233.11 mi (1,984.50 km) |
| Rockville to Stallings (North Carolina) | 335.67 mi (540.20 km) |
| Rockville to Stamford (Connecticut) | 235.83 mi (379.53 km) |
| Rockville to Stanford (California) | 2,419.74 mi (3,894.20 km) |
| Rockville to Stanton (California) | 2,279.68 mi (3,668.80 km) |
| Rockville to Star (Idaho) | 2,044.20 mi (3,289.82 km) |
| Rockville to Starkville (Mississippi) | 756.59 mi (1,217.61 km) |
| Rockville to State College (Pennsylvania) | 123.69 mi (199.06 km) |
| Rockville to Staten Island (New York) | 190.18 mi (306.06 km) |
| Rockville to Statesboro (Georgia) | 527.01 mi (848.14 km) |
| Rockville to Statesville (North Carolina) | 305.76 mi (492.08 km) |
| Rockville to Staunton (Virginia) | 121.08 mi (194.85 km) |
| Rockville to Steamboat Springs (Colorado) | 1,570.90 mi (2,528.12 km) |
| Rockville to Steiner Ranch (Texas) | 1,318.56 mi (2,122.01 km) |
