USA
> Washington-arlington-alexandria, Dc-va-md-wv Metro Area
| Metropolitan statistical area : | Washington-Arlington-Alexandria, DC-VA-MD-WV Metro Area |
| Land Area : | 5,598.29 sq mi |
| Water Area : | 432.06 sq mi |
| Latitude : | 38.8348307 |
| Longitude : | -77.3784451 |
| Population (2010): | 5,582,170 |
| Population Estimate (2012) : | 5,603,696 |
| Population Density : | 997.12/sq mi |
| Housing Units (2012) : | 2,213,752 |
| Median Household Income (2012) : | $89,826 (USA : $53,046) |
| Median Family Income (2012) : | $106,551 (USA : $64,585) |
| Median House Price (2012) : | $384,000 (USA : $181,400) |