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> California > Zip Code 91789
| Zip Code : | 91789 |
| City : | Diamond Bar city, Industry city, Pomona city, Rowland Heights, Walnut city, West Covina city |
| County : | Los Angeles County |
| State : | California (CA) |
| Land Area : | 15.63 sq mi |
| Water Area : | 0.05 sq mi |
| Latitude : | 34.0183544 |
| Longitude : | -117.8549196 |
| Population (2010): | 43,079 |
| Population Estimate (2012) : | 42,332 |
| Population Density : | 2,755.69/sq mi |
| Housing Units (2012) : | 13,246 |
| Median Household Income (2012) : | $90,906 (California : $61,400, USA : $53,046) |
| Median Family Income (2012) : | $96,339 (California : $69,883, USA : $64,585) |
| Median House Price (2012) : | $604,100 (California : $383,900, USA : $181,400) |