| City : | Mount Joy Borough |
| County : | Lancaster County |
| State : | Pennsylvania (PA) |
| | |
| Land Area : | 2.41 sq mi |
| Water Area : | 0.02 sq mi |
| Latitude : | 40.1106125 |
| Longitude : | -76.5057199 |
| | |
| Population (2010): | 7,410 |
| Population Estimate (2012) : | 7,515 |
| Population Density : | 3,073.72/sq mi |
| Housing Units (2012) : | 3,349 |
| Median Household Income (2012) : | $52,074 (Pennsylvania : $52,267, USA : $53,046) |
| Median Family Income (2012) : | $65,766 (Pennsylvania : $65,980, USA : $64,585) |
| Median House Price (2012) : | $159,300 (Pennsylvania : $164,900, USA : $181,400) |