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> Pennsylvania > Zip Code 17512
| Zip Code : | 17512 |
| City : | Columbia borough, Marietta borough, Washington Boro |
| County : | Lancaster County |
| State : | Pennsylvania (PA) |
| Land Area : | 16.28 sq mi |
| Water Area : | 4.87 sq mi |
| Latitude : | 40.0401693 |
| Longitude : | -76.4862821 |
| Population (2010): | 17,836 |
| Population Estimate (2012) : | 17,534 |
| Population Density : | 1,095.67/sq mi |
| Housing Units (2012) : | 7,580 |
| Median Household Income (2012) : | $44,531 (Pennsylvania : $52,267, USA : $53,046) |
| Median Family Income (2012) : | $51,632 (Pennsylvania : $65,980, USA : $64,585) |
| Median House Price (2012) : | $124,900 (Pennsylvania : $164,900, USA : $181,400) |