| Index | Walnut | California | National |
| Income per capita | $63,177 | $45,980 | $44,883 |
| Median household income | $164,391 | $95,535 | $81,333 |
| Median income owner occupied | $170,470 | $130,228 | $106,172 |
| Median income renter occupied | $117,510 | $64,137 | $52,080 |
| Median earnings male | $72,463 | $52,776 | $54,343 |
| Median earnings female | $54,759 | $38,938 | $38,439 |
| Unemployment rate | 2.6% | 6.8% | 4.9% |
| Poverty level | 6.6% | 15.8% | 15.1% |

| Labour Type | Male | Female |
| Construction industry | 5.9% | 5.9% |
| Manufacturing sector | 9.5% | 9.5% |
| Financial & insurance services | 5.3% | 5.3% |
| Wholesale & retail services | 18.7% | 18.7% |
| Public administration | 5.8% | 5.8% |
| Transportation, warehousing & utilities | 9.1% | 9.1% |
| Education, health & social services | 11.7% | 11.7% |
| Other | 31.7% | 31.7% |
| City | Population | Household Income | National Avg. |
| Bradbury, CA | 856 | $267,428 | 228.8% |
| San Marino, CA | 13,535 | $240,683 | 195.9% |
| La Habra Heights, CA | 5,470 | $239,716 | 194.7% |
| Yorba Linda, CA | 70,241 | $194,330 | 138.9% |
| La Palma, CA | 16,175 | $161,278 | 98.3% |
| Walnut, CA | 30,544 | $164,391 | 102.1% |
| City | Population | Household Income | National Avg. |
| Suisun City, CA | 30,544 | $120,978 | 48.7% |
| Chicago Heights, IL | 30,540 | $74,155 | 8.8% |
| Parkersburg, WV | 30,536 | $56,987 | 29.9% |
| East Palo Alto, CA | 30,529 | $122,327 | 50.4% |
| Highland Park, IL | 30,564 | $217,888 | 167.9% |
| Walnut, CA | 30,544 | $164,391 | 102.1% |