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> New Jersey > South Plainfield Borough
| City : | South Plainfield Borough |
| County : | Middlesex County |
| State : | New Jersey (NJ) |
| Land Area : | 8.33 sq mi |
| Water Area : | 0.03 sq mi |
| Latitude : | 40.5744129 |
| Longitude : | -74.4147996 |
| Population (2010): | 23,385 |
| Population Estimate (2012) : | 23,397 |
| Population Density : | 2,808.48/sq mi |
| Housing Units (2012) : | 8,093 |
| Median Household Income (2012) : | $91,267 (New Jersey : $71,637, USA : $53,046) |
| Median Family Income (2012) : | $97,292 (New Jersey : $87,389, USA : $64,585) |
| Median House Price (2012) : | $334,800 (New Jersey : $337,900, USA : $181,400) |