| City : | Smithtown |
| County : | Suffolk County |
| State : | New York (NY) |
| Land Area : | 11.63 sq mi |
| Water Area : | 0.48 sq mi |
| Latitude : | 40.8634098 |
| Longitude : | -73.2244435 |
| Population (2010): | 26,470 |
| Population Estimate (2012) : | 25,849 |
| Population Density : | 2,276.26/sq mi |
| Housing Units (2012) : | 9,031 |
| Median Household Income (2012) : | $108,679 (New York : $57,683, USA : $53,046) |
| Median Family Income (2012) : | $129,503 (New York : $69,968, USA : $64,585) |
| Median House Price (2012) : | $489,500 (New York : $295,300, USA : $181,400) |