| City : | Mercersburg Borough |
| County : | Franklin County |
| State : | Pennsylvania (PA) |
| | |
| Land Area : | 0.90 sq mi |
| Water Area : | 0.00 sq mi |
| Latitude : | 39.8318859 |
| Longitude : | -77.9028902 |
| | |
| Population (2010): | 1,561 |
| Population Estimate (2012) : | 1,668 |
| Population Density : | 1,730.70/sq mi |
| Housing Units (2012) : | 763 |
| Median Household Income (2012) : | $42,938 (Pennsylvania : $52,267, USA : $53,046) |
| Median Family Income (2012) : | $56,354 (Pennsylvania : $65,980, USA : $64,585) |
| Median House Price (2012) : | $158,200 (Pennsylvania : $164,900, USA : $181,400) |