| City : | Syosset |
| County : | Nassau County |
| State : | New York (NY) |
| Land Area : | 4.97 sq mi |
| Water Area : | 0.00 sq mi |
| Latitude : | 40.8156795 |
| Longitude : | -73.5020282 |
| Population (2010): | 18,829 |
| Population Estimate (2012) : | 18,691 |
| Population Density : | 3,785.81/sq mi |
| Housing Units (2012) : | 6,339 |
| Median Household Income (2012) : | $130,726 (New York : $57,683, USA : $53,046) |
| Median Family Income (2012) : | $147,474 (New York : $69,968, USA : $64,585) |
| Median House Price (2012) : | $616,400 (New York : $295,300, USA : $181,400) |