| Index | Duncan | Mississippi | National |
| Income per capita | $36,442 | $31,721 | $44,883 |
| Median household income | $60,022 | $59,875 | $81,333 |
| Median income owner occupied | $60,172 | $74,896 | $106,172 |
| Median income renter occupied | $44,159 | $36,445 | $52,080 |
| Median earnings male | $59,652 | $46,990 | $54,343 |
| Median earnings female | $37,338 | $33,204 | $38,439 |
| Unemployment rate | 5.2% | 5.8% | 4.9% |
| Poverty level | 13.6% | 22.3% | 15.1% |

| Labour Type | Male | Female |
| Construction industry | 0.0% | 0.0% |
| Manufacturing sector | 14.6% | 14.6% |
| Financial & insurance services | 0.0% | 0.0% |
| Wholesale & retail services | 0.0% | 0.0% |
| Public administration | 6.1% | 6.1% |
| Transportation, warehousing & utilities | 62.2% | 62.2% |
| Education, health & social services | 3.7% | 3.7% |
| Other | 13.4% | 13.4% |
| City | Population | Household Income | National Avg. |
| Lyon, MS | 454 | $93,772 | 15.3% |
| Merigold, MS | 650 | $67,584 | 16.9% |
| Winstonville, MS | 89 | $64,473 | 20.7% |
| Clarksdale, MS | 15,683 | $46,054 | 43.4% |
| Shelby, MS | 1,701 | $38,732 | 52.4% |
| Duncan, MS | 327 | $60,022 | 26.2% |
| City | Population | Household Income | National Avg. |
| Cash, AR | 327 | $36,582 | 55.0% |
| Woodville, GA | 327 | $41,865 | 48.5% |
| Frederika, IA | 327 | $57,730 | 29.0% |
| Kiron, IA | 327 | $61,626 | 24.2% |
| Ute, IA | 327 | $56,755 | 30.2% |
| Duncan, MS | 327 | $60,022 | 26.2% |