| Zip Code : | 11790 |
| City : | Head of the Harbor village, Setauket-East Setauket, Stony Brook, Stony Brook University |
| County : | Suffolk County |
| State : | New York (NY) |
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| Land Area : | 7.16 sq mi |
| Water Area : | 0.19 sq mi |
| Latitude : | 40.9059573 |
| Longitude : | -73.1273739 |
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| Population (2010): | 18,511 |
| Population Estimate (2012) : | 17,672 |
| Population Density : | 2,584.78/sq mi |
| Housing Units (2012) : | 5,034 |
| Median Household Income (2012) : | $134,142 (New York : $57,683, USA : $53,046) |
| Median Family Income (2012) : | $153,278 (New York : $69,968, USA : $64,585) |
| Median House Price (2012) : | $473,800 (New York : $295,300, USA : $181,400) |