| Index | St. Charles | Missouri | National |
| Income per capita | $60,046 | $39,715 | $44,883 |
| Median household income | $104,760 | $72,613 | $81,333 |
| Median income owner occupied | $129,311 | $90,986 | $106,172 |
| Median income renter occupied | $68,713 | $45,210 | $52,080 |
| Median earnings male | $69,089 | $52,324 | $54,343 |
| Median earnings female | $41,247 | $36,971 | $38,439 |
| Unemployment rate | 1.5% | 4.4% | 4.9% |
| Poverty level | 7.6% | 15.3% | 15.1% |

| Labour Type | Male | Female |
| Construction industry | 9.4% | 9.4% |
| Manufacturing sector | 16.9% | 16.9% |
| Financial & insurance services | 6.5% | 6.5% |
| Wholesale & retail services | 15.2% | 15.2% |
| Public administration | 3.3% | 3.3% |
| Transportation, warehousing & utilities | 6.0% | 6.0% |
| Education, health & social services | 11.6% | 11.6% |
| 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% |
| St. Charles, MO | 72,409 | $104,760 | 28.8% |
| City | Population | Household Income | National Avg. |
| Passaic, NJ | 72,139 | $67,247 | 17.3% |
| Walnut Creek, CA | 72,134 | $159,760 | 96.4% |
| North Richland Hills, TX | 72,121 | $112,657 | 38.5% |
| Wilmington, DE | 72,823 | $67,127 | 17.5% |
| Woodbury, MN | 72,852 | $160,848 | 97.8% |
| St. Charles, MO | 72,409 | $104,760 | 28.8% |