| Index | Montclair | California | National |
| Income per capita | $20,988 | $31,458 | $29,829 |
| Median household income | $63,245 | $63,783 | $55,322 |
| Median income owner occupied | $79,322 | $86,568 | $70,586 |
| Median income renter occupied | $41,715 | $43,419 | $35,192 |
| Median earnings male | $31,720 | $36,599 | $36,919 |
| Median earnings female | $24,101 | $27,020 | $26,250 |
| Unemployment rate | 4.5% | 5.5% | 4.7% |
| Poverty level | 18.3% | 15.8% | 15.1% |


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| Labour Type | Male | Female |
| Construction industry | 17.5% | 17.5% |
| Manufacturing sector | 10.6% | 10.6% |
| Financial & insurance services | 2.6% | 2.6% |
| Wholesale & retail services | 15.9% | 15.9% |
| Public administration | 1.9% | 1.9% |
| Transportation, warehousing & utilities | 13.0% | 13.0% |
| Education, health & social services | 11.0% | 11.0% |
| Other | 26.0% | 26.0% |
| City | Population | Household Income | National Avg. |
| La Habra Heights, CA | 5,318 | $163,750 | 196.0% |
| Yorba Linda, CA | 68,103 | $133,088 | 140.6% |
| Eastvale, CA | 65,766 | $127,881 | 131.2% |
| Walnut, CA | 29,764 | $108,264 | 95.7% |
| Norco, CA | 27,021 | $106,370 | 92.3% |
| Montclair, CA | 40,041 | $63,245 | 14.3% |
| City | Population | Household Income | National Avg. |
| Hagerstown, MD | 40,027 | $41,905 | 24.3% |
| Spanish Fork, UT | 40,069 | $79,846 | 44.3% |
| Hilton Head Island, SC | 40,000 | $86,171 | 55.8% |
| Hollister, CA | 40,100 | $80,670 | 45.8% |
| Cape Girardeau, MO | 40,100 | $45,713 | 17.4% |
| Montclair, CA | 40,041 | $63,245 | 14.3% |