| Zip Code : | 20854 |
| City : | Darnestown, Potomac, Rockville city, Travilah |
| County : | Montgomery County |
| State : | Maryland (MD) |
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| Land Area : | 33.75 sq mi |
| Water Area : | 2.79 sq mi |
| Latitude : | 39.0329948 |
| Longitude : | -77.2223122 |
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| Population (2010): | 49,611 |
| Population Estimate (2012) : | 49,714 |
| Population Density : | 1,469.78/sq mi |
| Housing Units (2012) : | 17,262 |
| Median Household Income (2012) : | $191,200 (Maryland : $72,999, USA : $53,046) |
| Median Family Income (2012) : | $205,986 (Maryland : $88,092, USA : $64,585) |
| Median House Price (2012) : | $882,600 (Maryland : $304,900, USA : $181,400) |