| Index | Weldon Spring | Missouri | National |
| Income per capita | $94,154 | $39,715 | $44,883 |
| Median household income | $177,722 | $72,613 | $81,333 |
| Median income owner occupied | $190,031 | $90,986 | $106,172 |
| Median income renter occupied | $86,940 | $45,210 | $52,080 |
| Median earnings male | $135,530 | $52,324 | $54,343 |
| Median earnings female | $66,463 | $36,971 | $38,439 |
| Unemployment rate | 1.8% | 4.4% | 4.9% |
| Poverty level | 1.5% | 15.3% | 15.1% |

| Labour Type | Male | Female |
| Construction industry | 15.8% | 15.8% |
| Manufacturing sector | 13.2% | 13.2% |
| Financial & insurance services | 6.6% | 6.6% |
| Wholesale & retail services | 28.4% | 28.4% |
| Public administration | 1.5% | 1.5% |
| Transportation, warehousing & utilities | 6.7% | 6.7% |
| Education, health & social services | 5.5% | 5.5% |
| Other | 21.3% | 21.3% |
| City | Population | Household Income | National Avg. |
| Westwood, MO | 321 | $368,561 | 353.2% |
| Country Life Acres, MO | 54 | $365,640 | 349.6% |
| Clarkson Valley, MO | 2,697 | $312,556 | 284.3% |
| Town and Country, MO | 11,464 | $307,729 | 278.4% |
| Frontenac, MO | 3,669 | $260,586 | 220.4% |
| Weldon Spring, MO | 5,688 | $177,722 | 118.5% |
| City | Population | Household Income | National Avg. |
| Salida, CO | 5,688 | $74,616 | 8.3% |
| Orchard Homes, MT | 5,688 | $106,295 | 30.7% |
| New Holland, PA | 5,687 | $77,913 | 4.2% |
| Volo, IL | 5,685 | $153,697 | 89.0% |
| Charleston, MO | 5,691 | $46,417 | 42.9% |
| Weldon Spring, MO | 5,688 | $177,722 | 118.5% |