| City : | Mendham Borough |
| County : | Catron County, Morris County |
| State : | New Jersey (NJ) |
| | |
| Land Area : | 5.95 sq mi |
| Water Area : | 0.05 sq mi |
| Latitude : | 40.7697394 |
| Longitude : | -74.5988126 |
| | |
| Population (2010): | 4,981 |
| Population Estimate (2012) : | 5,004 |
| Population Density : | 837.10/sq mi |
| Housing Units (2012) : | 1,798 |
| Median Household Income (2012) : | $126,597 (New Jersey : $71,637, USA : $53,046) |
| Median Family Income (2012) : | $160,133 (New Jersey : $87,389, USA : $64,585) |
| Median House Price (2012) : | $660,300 (New Jersey : $337,900, USA : $181,400) |