| Index | Derby | Iowa | National |
| Income per capita | $13,727 | $28,872 | $29,829 |
| Median household income | $41,750 | $54,570 | $55,322 |
| Median income owner occupied | $42,000 | $66,527 | $70,586 |
| Median income renter occupied | $0 | $30,828 | $35,192 |
| Median earnings male | $31,607 | $37,409 | $36,919 |
| Median earnings female | $0 | $25,115 | $26,250 |
| Unemployment rate | 0.0% | 3.1% | 4.7% |
| Poverty level | 31.0% | 12.3% | 15.1% |
| Labour Type | Male | Female |
| Construction industry | 42.1% | 42.1% |
| Manufacturing sector | 5.3% | 5.3% |
| Financial & insurance services | 0.0% | 0.0% |
| Wholesale & retail services | 31.6% | 31.6% |
| Public administration | 0.0% | 0.0% |
| Transportation, warehousing & utilities | 10.5% | 10.5% |
| Education, health & social services | 0.0% | 0.0% |
| Other | 10.5% | 10.5% |
| City | Population | Household Income | National Avg. |
| Chariton, IA | 4,127 | $48,316 | 12.7% |
| Corydon, IA | 1,659 | $46,316 | 16.3% |
| Humeston, IA | 449 | $43,207 | 21.9% |
| Garden Grove, IA | 203 | $43,182 | 21.9% |
| Lucas, IA | 113 | $43,125 | 22.0% |
| Derby, IA | 113 | $41,750 | 24.5% |
| City | Population | Household Income | National Avg. |
| Peterman, AL | 113 | $0 | 100.0% |
| McNab, AR | 113 | $0 | 100.0% |
| Sehili, AZ | 113 | $0 | 100.0% |
| Guinda, CA | 113 | $0 | 100.0% |
| Martell, CA | 113 | $0 | 100.0% |
| Derby, IA | 113 | $41,750 | 24.5% |
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