| City : | Etna Borough |
| County : | Allegheny County |
| State : | Pennsylvania (PA) |
| | |
| Land Area : | 0.73 sq mi |
| Water Area : | 0.06 sq mi |
| Latitude : | 40.4951570 |
| Longitude : | -79.9496330 |
| | |
| Population (2010): | 3,451 |
| Population Estimate (2012) : | 3,471 |
| Population Density : | 4,723.39/sq mi |
| Housing Units (2012) : | 1,812 |
| Median Household Income (2012) : | $37,487 (Pennsylvania : $52,267, USA : $53,046) |
| Median Family Income (2012) : | $48,250 (Pennsylvania : $65,980, USA : $64,585) |
| Median House Price (2012) : | $84,900 (Pennsylvania : $164,900, USA : $181,400) |