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> Pennsylvania > Zip Code 17030
| Zip Code : | 17030 |
| City : | Gratz borough |
| County : | Dauphin County |
| State : | Pennsylvania (PA) |
| Land Area : | 4.07 sq mi |
| Water Area : | 0.00 sq mi |
| Latitude : | 40.6092348 |
| Longitude : | -76.7256086 |
| Population (2010): | 832 |
| Population Estimate (2012) : | 820 |
| Population Density : | 204.55/sq mi |
| Housing Units (2012) : | 366 |
| Median Household Income (2012) : | $35,724 (Pennsylvania : $52,267, USA : $53,046) |
| Median Family Income (2012) : | $48,977 (Pennsylvania : $65,980, USA : $64,585) |
| Median House Price (2012) : | $94,700 (Pennsylvania : $164,900, USA : $181,400) |