| Zip Code : | 22066 |
| City : | Great Falls, Lowes Island, McLean |
| County : | Fairfax County, Loudoun County |
| State : | Virginia (VA) |
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| Land Area : | 26.98 sq mi |
| Water Area : | 0.24 sq mi |
| Latitude : | 39.0120489 |
| Longitude : | -77.3025663 |
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| Population (2010): | 18,099 |
| Population Estimate (2012) : | 19,295 |
| Population Density : | 670.83/sq mi |
| Housing Units (2012) : | 6,054 |
| Median Household Income (2012) : | $207,949 (Virginia : $63,636, USA : $53,046) |
| Median Family Income (2012) : | $216,719 (Virginia : $76,566, USA : $64,585) |
| Median House Price (2012) : | $0 (Virginia : $249,700, USA : $181,400) |