| City : | Locust Valley |
| County : | Cobb County, Nassau County |
| State : | New York (NY) |
| | |
| Land Area : | 0.91 sq mi |
| Water Area : | 0.02 sq mi |
| Latitude : | 40.8781156 |
| Longitude : | -73.5888296 |
| | |
| Population (2010): | 3,406 |
| Population Estimate (2012) : | 3,345 |
| Population Density : | 3,728.11/sq mi |
| Housing Units (2012) : | 1,281 |
| Median Household Income (2012) : | $87,697 (New York : $57,683, USA : $53,046) |
| Median Family Income (2012) : | $96,950 (New York : $69,968, USA : $64,585) |
| Median House Price (2012) : | $586,900 (New York : $295,300, USA : $181,400) |