| Index | Diamond Bar | California | National |
| Income per capita | $40,550 | $31,458 | $29,829 |
| Median household income | $100,723 | $63,783 | $55,322 |
| Median income owner occupied | $110,629 | $86,568 | $70,586 |
| Median income renter occupied | $66,543 | $43,419 | $35,192 |
| Median earnings male | $53,958 | $36,599 | $36,919 |
| Median earnings female | $37,235 | $27,020 | $26,250 |
| Unemployment rate | 2.6% | 5.5% | 4.7% |
| Poverty level | 6.5% | 15.8% | 15.1% |


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| Labour Type | Male | Female |
| Construction industry | 6.2% | 6.2% |
| Manufacturing sector | 11.8% | 11.8% |
| Financial & insurance services | 6.0% | 6.0% |
| Wholesale & retail services | 17.7% | 17.7% |
| Public administration | 3.9% | 3.9% |
| Transportation, warehousing & utilities | 8.3% | 8.3% |
| Education, health & social services | 14.5% | 14.5% |
| Other | 29.7% | 29.7% |
| City | Population | Household Income | National Avg. |
| Bradbury, CA | 825 | $181,875 | 228.8% |
| Villa Park, CA | 5,883 | $164,476 | 197.3% |
| La Habra Heights, CA | 5,318 | $163,750 | 196.0% |
| Rossmoor, CA | 11,923 | $138,641 | 150.6% |
| Yorba Linda, CA | 68,103 | $133,088 | 140.6% |
| Diamond Bar, CA | 55,870 | $100,723 | 82.1% |
| City | Population | Household Income | National Avg. |
| Commerce City, CO | 55,891 | $82,939 | 49.9% |
| Tamiami, FL | 55,757 | $63,684 | 15.1% |
| New Brunswick, NJ | 55,992 | $43,930 | 20.6% |
| Kendale Lakes, FL | 55,732 | $59,793 | 8.1% |
| Pocatello, ID | 56,016 | $46,882 | 15.3% |
| Diamond Bar, CA | 55,870 | $100,723 | 82.1% |