| Index | Millstadt | Illinois | National |
| Income per capita | $40,586 | $31,502 | $29,829 |
| Median household income | $78,379 | $59,196 | $55,322 |
| Median income owner occupied | $83,594 | $75,354 | $70,586 |
| Median income renter occupied | $45,288 | $34,488 | $35,192 |
| Median earnings male | $44,766 | $40,474 | $36,919 |
| Median earnings female | $35,217 | $27,197 | $26,250 |
| Unemployment rate | 3.8% | 5.3% | 4.7% |
| Poverty level | 4.9% | 14.0% | 15.1% |
| Labour Type | Male | Female |
| Construction industry | 12.9% | 12.9% |
| Manufacturing sector | 11.1% | 11.1% |
| Financial & insurance services | 3.4% | 3.4% |
| Wholesale & retail services | 16.6% | 16.6% |
| Public administration | 11.8% | 11.8% |
| Transportation, warehousing & utilities | 8.8% | 8.8% |
| Education, health & social services | 3.6% | 3.6% |
| Other | 30.4% | 30.4% |
| City | Population | Household Income | National Avg. |
| Grantwood Village, MO | 947 | $126,510 | 128.7% |
| Clayton, MO | 16,763 | $108,387 | 95.9% |
| Columbia, IL | 10,692 | $107,500 | 94.3% |
| Webster Groves, MO | 22,906 | $94,479 | 70.8% |
| O'Fallon, IL | 29,487 | $90,432 | 63.5% |
| Millstadt, IL | 3,882 | $78,379 | 41.7% |
| City | Population | Household Income | National Avg. |
| Green Oaks, IL | 3,882 | $119,625 | 116.2% |
| Orange, MA | 3,882 | $58,255 | 5.3% |
| Weston, WV | 3,882 | $36,728 | 33.6% |
| Wallace, NC | 3,883 | $40,645 | 26.5% |
| Swanton, OH | 3,884 | $59,823 | 8.1% |
| Millstadt, IL | 3,882 | $78,379 | 41.7% |
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