| Index | Mehlville | Missouri | National |
| Income per capita | $50,560 | $39,715 | $44,883 |
| Median household income | $80,861 | $72,613 | $81,333 |
| Median income owner occupied | $105,067 | $90,986 | $106,172 |
| Median income renter occupied | $66,823 | $45,210 | $52,080 |
| Median earnings male | $59,247 | $52,324 | $54,343 |
| Median earnings female | $46,330 | $36,971 | $38,439 |
| Unemployment rate | 2.9% | 4.4% | 4.9% |
| Poverty level | 7.3% | 15.3% | 15.1% |


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| Labour Type | Male | Female |
| Construction industry | 8.2% | 8.2% |
| Manufacturing sector | 13.1% | 13.1% |
| Financial & insurance services | 6.4% | 6.4% |
| Wholesale & retail services | 14.6% | 14.6% |
| Public administration | 3.6% | 3.6% |
| Transportation, warehousing & utilities | 11.0% | 11.0% |
| Education, health & social services | 11.8% | 11.8% |
| Other | 28.6% | 28.6% |
| City | Population | Household Income | National Avg. |
| Westwood, MO | 321 | $368,561 | 353.2% |
| Ladue, MO | 8,903 | $368,480 | 353.1% |
| Huntleigh, MO | 463 | $365,824 | 349.8% |
| Country Life Acres, MO | 54 | $365,640 | 349.6% |
| Clarkson Valley, MO | 2,697 | $312,556 | 284.3% |
| Mehlville, MO | 29,470 | $80,861 | 0.6% |
| City | Population | Household Income | National Avg. |
| East Haven, CT | 29,456 | $100,000 | 23.0% |
| Lake in the Hills, IL | 29,485 | $143,912 | 76.9% |
| Burbank, IL | 29,451 | $104,226 | 28.1% |
| Jacksonville, AR | 29,495 | $71,697 | 11.8% |
| Bella Vista, AR | 29,519 | $107,486 | 32.2% |
| Mehlville, MO | 29,470 | $80,861 | 0.6% |