| Index | Westport | South Dakota | National |
| Income per capita | $32,990 | $41,166 | $44,883 |
| Median household income | $71,472 | $77,914 | $81,333 |
| Median income owner occupied | $71,671 | $100,475 | $106,172 |
| Median income renter occupied | $0 | $45,187 | $52,080 |
| Median earnings male | $45,664 | $52,540 | $54,343 |
| Median earnings female | $24,630 | $36,073 | $38,439 |
| Unemployment rate | 0.0% | 2.9% | 4.9% |
| Poverty level | 0.0% | 14.0% | 15.1% |


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| Labour Type | Male | Female |
| Construction industry | 13.3% | 13.3% |
| Manufacturing sector | 40.0% | 40.0% |
| Financial & insurance services | 0.0% | 0.0% |
| Wholesale & retail services | 4.4% | 4.4% |
| Public administration | 0.0% | 0.0% |
| Transportation, warehousing & utilities | 0.0% | 0.0% |
| Education, health & social services | 0.0% | 0.0% |
| Other | 42.2% | 42.2% |
| City | Population | Household Income | National Avg. |
| Frederick, SD | 180 | $104,155 | 28.1% |
| Aberdeen, SD | 29,054 | $82,945 | 2.0% |
| Columbia, SD | 171 | $77,853 | 4.3% |
| Bath Corner, SD | 17 | $0 | 100.0% |
| Bath, SD | 224 | $0 | 100.0% |
| Westport, SD | 136 | $71,472 | 12.1% |
| City | Population | Household Income | National Avg. |
| Pitkas Point, AK | 136 | $76,346 | 6.1% |
| Lester, AL | 136 | $64,549 | 20.6% |
| McKittrick, CA | 136 | $58,026 | 28.7% |
| Vallecito, CA | 136 | $66,018 | 18.8% |
| Volta, CA | 136 | $61,660 | 24.2% |
| Westport, SD | 136 | $71,472 | 12.1% |