| Rockville to North Auburn (California) | 2,334.81 mi (3,757.52 km) |
| Rockville to North Augusta (South Carolina) | 467.91 mi (753.03 km) |
| Rockville to North Aurora (Illinois) | 617.04 mi (993.03 km) |
| Rockville to North Babylon (New York) | 232.74 mi (374.55 km) |
| Rockville to North Bay Shore (New York) | 236.59 mi (380.75 km) |
| Rockville to North Bellmore (New York) | 221.52 mi (356.51 km) |
| Rockville to North Bellport (New York) | 252.13 mi (405.76 km) |
| Rockville to North Bend (Oregon) | 2,431.42 mi (3,912.98 km) |
| Rockville to North Bethesda (Maryland) | 3.61 mi (5.82 km) |
| Rockville to North Branch (Minnesota) | 919.51 mi (1,479.82 km) |
| Rockville to North Canton (Ohio) | 256.37 mi (412.58 km) |
| Rockville to North Charleston (South Carolina) | 456.78 mi (735.12 km) |
| Rockville to North Chicago (Illinois) | 603.04 mi (970.50 km) |
| Rockville to North Decatur (Georgia) | 538.26 mi (866.25 km) |
| Rockville to North Druid Hills (Georgia) | 539.21 mi (867.78 km) |
