| City : | Elwood |
| County : | Suffolk County |
| State : | New York (NY) |
| Land Area : | 4.78 sq mi |
| Water Area : | 0.00 sq mi |
| Latitude : | 40.8461979 |
| Longitude : | -73.3388748 |
| Population (2010): | 11,177 |
| Population Estimate (2012) : | 10,821 |
| Population Density : | 2,337.50/sq mi |
| Housing Units (2012) : | 3,585 |
| Median Household Income (2012) : | $99,276 (New York : $57,683, USA : $53,046) |
| Median Family Income (2012) : | $110,332 (New York : $69,968, USA : $64,585) |
| Median House Price (2012) : | $517,200 (New York : $295,300, USA : $181,400) |