USA
> New Jersey > Erma
| City : | Erma |
| County : | Cape May County, Hayes County |
| State : | New Jersey (NJ) |
| Land Area : | 3.26 sq mi |
| Water Area : | 0.10 sq mi |
| Latitude : | 38.9969312 |
| Longitude : | -74.8911222 |
| Population (2010): | 2,134 |
| Population Estimate (2012) : | 1,863 |
| Population Density : | 654.60/sq mi |
| Housing Units (2012) : | 920 |
| Median Household Income (2012) : | $95,333 (New Jersey : $71,637, USA : $53,046) |
| Median Family Income (2012) : | $108,250 (New Jersey : $87,389, USA : $64,585) |
| Median House Price (2012) : | $281,800 (New Jersey : $337,900, USA : $181,400) |