| City : | Monongahela City |
| County : | Washington County |
| State : | Pennsylvania (PA) |
| | |
| Land Area : | 1.91 sq mi |
| Water Area : | 0.22 sq mi |
| Latitude : | 40.1911656 |
| Longitude : | -79.9224763 |
| | |
| Population (2010): | 4,300 |
| Population Estimate (2012) : | 4,305 |
| Population Density : | 2,247.83/sq mi |
| Housing Units (2012) : | 2,265 |
| Median Household Income (2012) : | $41,616 (Pennsylvania : $52,267, USA : $53,046) |
| Median Family Income (2012) : | $51,458 (Pennsylvania : $65,980, USA : $64,585) |
| Median House Price (2012) : | $92,100 (Pennsylvania : $164,900, USA : $181,400) |