| Index | Duck Key | Florida | National |
| Income per capita | $67,011 | $27,598 | $29,829 |
| Median household income | $107,625 | $48,900 | $55,322 |
| Median income owner occupied | $112,554 | $59,209 | $70,586 |
| Median income renter occupied | $0 | $34,622 | $35,192 |
| Median earnings male | $35,469 | $31,444 | $36,919 |
| Median earnings female | $27,308 | $25,332 | $26,250 |
| Unemployment rate | 0.7% | 4.9% | 4.7% |
| Poverty level | 18.7% | 16.1% | 15.1% |
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| Labour Type | Male | Female |
| Construction industry | 11.3% | 11.3% |
| Manufacturing sector | 5.9% | 5.9% |
| Financial & insurance services | 1.7% | 1.7% |
| Wholesale & retail services | 2.1% | 2.1% |
| Public administration | 7.9% | 7.9% |
| Transportation, warehousing & utilities | 4.6% | 4.6% |
| Education, health & social services | 5.4% | 5.4% |
| Other | 61.1% | 61.1% |
| City | Population | Household Income | National Avg. |
| Key Colony Beach, FL | 523 | $91,899 | 66.1% |
| Marathon, FL | 8,746 | $56,008 | 1.2% |
| Layton, FL | 107 | $51,442 | 7.0% |
| Duck Key, FL | 761 | $107,625 | 94.5% |
| City | Population | Household Income | National Avg. |
| Manokotak, AK | 761 | $42,143 | 23.8% |
| Independence, CA | 761 | $58,125 | 5.1% |
| Ventura, IA | 761 | $73,438 | 32.7% |
| Challis, ID | 761 | $21,640 | 60.9% |
| Mount Hope, KS | 761 | $65,357 | 18.1% |
| Duck Key, FL | 761 | $107,625 | 94.5% |
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