| City : | Rosslyn Farms Borough |
| County : | Allegheny County, Lafayette County, Seneca County |
| State : | Pennsylvania (PA) |
| | |
| Land Area : | 0.56 sq mi |
| Water Area : | 0.00 sq mi |
| Latitude : | 40.4224336 |
| Longitude : | -80.0885753 |
| | |
| Population (2010): | 427 |
| Population Estimate (2012) : | 485 |
| Population Density : | 761.45/sq mi |
| Housing Units (2012) : | 179 |
| Median Household Income (2012) : | $111,250 (Pennsylvania : $52,267, USA : $53,046) |
| Median Family Income (2012) : | $120,417 (Pennsylvania : $65,980, USA : $64,585) |
| Median House Price (2012) : | $283,300 (Pennsylvania : $164,900, USA : $181,400) |