| Index | Martinsburg | Missouri | National |
| Income per capita | $18,190 | $27,044 | $29,829 |
| Median household income | $26,846 | $49,593 | $55,322 |
| Median income owner occupied | $26,915 | $62,242 | $70,586 |
| Median income renter occupied | $21,250 | $30,016 | $35,192 |
| Median earnings male | $0 | $34,901 | $36,919 |
| Median earnings female | $11,409 | $24,771 | $26,250 |
| Unemployment rate | 1.4% | 4.1% | 4.7% |
| Poverty level | 15.6% | 15.3% | 15.1% |


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| Labour Type | Male | Female |
| Construction industry | 6.2% | 6.2% |
| Manufacturing sector | 27.2% | 27.2% |
| Financial & insurance services | 1.2% | 1.2% |
| Wholesale & retail services | 48.1% | 48.1% |
| Public administration | 6.2% | 6.2% |
| Transportation, warehousing & utilities | 2.5% | 2.5% |
| Education, health & social services | 1.2% | 1.2% |
| Other | 7.4% | 7.4% |
| City | Population | Household Income | National Avg. |
| Farber, MO | 406 | $50,893 | 8.0% |
| Wellsville, MO | 1,149 | $48,000 | 13.2% |
| Auxvasse, MO | 1,229 | $45,765 | 17.3% |
| Montgomery City, MO | 2,659 | $42,750 | 22.7% |
| New Florence, MO | 794 | $42,000 | 24.1% |
| Martinsburg, MO | 577 | $26,846 | 51.5% |
| City | Population | Household Income | National Avg. |
| Fields Landing, CA | 577 | $0 | 100.0% |
| Chaplin, KY | 577 | $49,881 | 9.8% |
| Cedarville, MD | 577 | $94,423 | 70.7% |
| Oak Hill, MI | 577 | $48,095 | 13.1% |
| Austinburg, OH | 577 | $18,935 | 65.8% |
| Martinsburg, MO | 577 | $26,846 | 51.5% |