| Index | St. Ann | Missouri | National |
| Income per capita | $35,720 | $39,715 | $44,883 |
| Median household income | $70,440 | $72,613 | $81,333 |
| Median income owner occupied | $95,119 | $90,986 | $106,172 |
| Median income renter occupied | $52,827 | $45,210 | $52,080 |
| Median earnings male | $47,412 | $52,324 | $54,343 |
| Median earnings female | $41,086 | $36,971 | $38,439 |
| Unemployment rate | 3.4% | 4.4% | 4.9% |
| Poverty level | 11.1% | 15.3% | 15.1% |

| Labour Type | Male | Female |
| Construction industry | 8.9% | 8.9% |
| Manufacturing sector | 16.6% | 16.6% |
| Financial & insurance services | 3.8% | 3.8% |
| Wholesale & retail services | 12.8% | 12.8% |
| Public administration | 4.1% | 4.1% |
| Transportation, warehousing & utilities | 8.8% | 8.8% |
| Education, health & social services | 12.1% | 12.1% |
| Other | 30.5% | 30.5% |
| 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. Ann, MO | 13,143 | $70,440 | 13.4% |
| City | Population | Household Income | National Avg. |
| Key Biscayne, FL | 13,140 | $250,720 | 208.3% |
| Martinsville, VA | 13,146 | $53,215 | 34.6% |
| Clarkston, GA | 13,147 | $59,653 | 26.7% |
| Greenville, OH | 13,135 | $59,910 | 26.3% |
| Fort Bliss, TX | 13,157 | $82,139 | 1.0% |
| St. Ann, MO | 13,143 | $70,440 | 13.4% |