USA
> New Jersey > Martinsville
| City : | Martinsville |
| County : | Fairfax County, Kent County, Somerset County |
| State : | New Jersey (NJ) |
| Land Area : | 12.32 sq mi |
| Water Area : | 0.08 sq mi |
| Latitude : | 40.6029461 |
| Longitude : | -74.5757942 |
| Population (2010): | 11,980 |
| Population Estimate (2012) : | 11,595 |
| Population Density : | 972.26/sq mi |
| Housing Units (2012) : | 4,461 |
| Median Household Income (2012) : | $147,045 (New Jersey : $71,637, USA : $53,046) |
| Median Family Income (2012) : | $177,841 (New Jersey : $87,389, USA : $64,585) |
| Median House Price (2012) : | $556,400 (New Jersey : $337,900, USA : $181,400) |