| City : | Greenbriar |
| County : | Fairfax County, Franklin County |
| State : | Virginia (VA) |
| | |
| Land Area : | 1.57 sq mi |
| Water Area : | 0.01 sq mi |
| Latitude : | 38.8716383 |
| Longitude : | -77.3990544 |
| | |
| Population (2010): | 8,166 |
| Population Estimate (2012) : | 8,050 |
| Population Density : | 5,207.56/sq mi |
| Housing Units (2012) : | 3,224 |
| Median Household Income (2012) : | $109,962 (Virginia : $63,636, USA : $53,046) |
| Median Family Income (2012) : | $126,193 (Virginia : $76,566, USA : $64,585) |
| Median House Price (2012) : | $410,300 (Virginia : $249,700, USA : $181,400) |