| Zip Code : | 11951 |
| City : | Fire Island, Mastic Beach, Shirley |
| County : | Suffolk County |
| State : | New York (NY) |
| | |
| Land Area : | 6.70 sq mi |
| Water Area : | 1.12 sq mi |
| Latitude : | 40.7631636 |
| Longitude : | -72.8303437 |
| | |
| Population (2010): | 13,680 |
| Population Estimate (2012) : | 13,110 |
| Population Density : | 2,041.37/sq mi |
| Housing Units (2012) : | 5,140 |
| Median Household Income (2012) : | $68,243 (New York : $57,683, USA : $53,046) |
| Median Family Income (2012) : | $74,370 (New York : $69,968, USA : $64,585) |
| Median House Price (2012) : | $223,600 (New York : $295,300, USA : $181,400) |