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> California > Zip Code 94509
| Zip Code : | 94509 |
| City : | Antioch city, Pittsburg city |
| County : | Contra Costa County |
| State : | California (CA) |
| Land Area : | 16.43 sq mi |
| Water Area : | 1.38 sq mi |
| Latitude : | 37.9965006 |
| Longitude : | -121.8123009 |
| Population (2010): | 62,439 |
| Population Estimate (2012) : | 61,665 |
| Population Density : | 3,800.41/sq mi |
| Housing Units (2012) : | 22,500 |
| Median Household Income (2012) : | $54,441 (California : $61,400, USA : $53,046) |
| Median Family Income (2012) : | $59,736 (California : $69,883, USA : $64,585) |
| Median House Price (2012) : | $219,100 (California : $383,900, USA : $181,400) |