| City : | East Rocky Hill |
| County : | Somerset County |
| State : | New Jersey (NJ) |
| | |
| Land Area : | 4.17 sq mi |
| Water Area : | 0.09 sq mi |
| Latitude : | 40.4151331 |
| Longitude : | -74.6179030 |
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| Population (2010): | 469 |
| Population Estimate (2012) : | 310 |
| Population Density : | 112.60/sq mi |
| Housing Units (2012) : | 172 |
| Median Household Income (2012) : | $95,438 (New Jersey : $71,637, USA : $53,046) |
| Median Family Income (2012) : | $96,875 (New Jersey : $87,389, USA : $64,585) |
| Median House Price (2012) : | $498,500 (New Jersey : $337,900, USA : $181,400) |