| Index | Marthasville | Missouri | National |
| Income per capita | $26,315 | $27,044 | $29,829 |
| Median household income | $96,528 | $49,593 | $55,322 |
| Median income owner occupied | $101,250 | $62,242 | $70,586 |
| Median income renter occupied | $49,583 | $30,016 | $35,192 |
| Median earnings male | $47,813 | $34,901 | $36,919 |
| Median earnings female | $34,317 | $24,771 | $26,250 |
| Unemployment rate | 0.7% | 4.1% | 4.7% |
| Poverty level | 3.5% | 15.3% | 15.1% |
| Labour Type | Male | Female |
| Construction industry | 49.9% | 49.9% |
| Manufacturing sector | 17.5% | 17.5% |
| Financial & insurance services | 0.0% | 0.0% |
| Wholesale & retail services | 9.5% | 9.5% |
| Public administration | 0.6% | 0.6% |
| Transportation, warehousing & utilities | 3.7% | 3.7% |
| Education, health & social services | 7.0% | 7.0% |
| Other | 11.1% | 11.1% |
| City | Population | Household Income | National Avg. |
| Innsbrook, MO | 843 | $143,500 | 159.4% |
| Lake St. Louis, MO | 16,357 | $100,122 | 81.0% |
| New Melle, MO | 428 | $95,000 | 71.7% |
| Wentzville, MO | 40,407 | $93,602 | 69.2% |
| Josephville, MO | 632 | $93,000 | 68.1% |
| Marthasville, MO | 2,410 | $96,528 | 74.5% |
| City | Population | Household Income | National Avg. |
| North Conway, NH | 2,410 | $60,913 | 10.1% |
| Hudson, IA | 2,409 | $105,000 | 89.8% |
| White Island Shores, MA | 2,409 | $92,353 | 66.9% |
| Argentine, MI | 2,409 | $79,219 | 43.2% |
| Lemont, PA | 2,411 | $82,980 | 50.0% |
| Marthasville, MO | 2,410 | $96,528 | 74.5% |
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