| City : | Demarest Borough |
| County : | Bergen County, Franklin County, Suffolk County |
| State : | New Jersey (NJ) |
| | |
| Land Area : | 2.07 sq mi |
| Water Area : | 0.01 sq mi |
| Latitude : | 40.9545757 |
| Longitude : | -73.9565634 |
| | |
| Population (2010): | 4,881 |
| Population Estimate (2012) : | 4,909 |
| Population Density : | 2,361.77/sq mi |
| Housing Units (2012) : | 1,659 |
| Median Household Income (2012) : | $143,807 (New Jersey : $71,637, USA : $53,046) |
| Median Family Income (2012) : | $158,281 (New Jersey : $87,389, USA : $64,585) |
| Median House Price (2012) : | $721,600 (New Jersey : $337,900, USA : $181,400) |