| Index | Chelsea | South Dakota | National |
| Income per capita | $57,070 | $27,516 | $29,829 |
| Median household income | $132,813 | $52,078 | $55,322 |
| Median income owner occupied | $132,813 | $66,299 | $70,586 |
| Median income renter occupied | $0 | $30,800 | $35,192 |
| Median earnings male | $28,750 | $35,140 | $36,919 |
| Median earnings female | $0 | $24,451 | $26,250 |
| Unemployment rate | 0.0% | 2.8% | 4.7% |
| Poverty level | 0.0% | 14.0% | 15.1% |


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| Labour Type | Male | Female |
| Construction industry | 0.0% | 0.0% |
| Manufacturing sector | 0.0% | 0.0% |
| Financial & insurance services | 0.0% | 0.0% |
| Wholesale & retail services | 0.0% | 0.0% |
| Public administration | 0.0% | 0.0% |
| Transportation, warehousing & utilities | 0.0% | 0.0% |
| Education, health & social services | 0.0% | 0.0% |
| Other | 100.0% | 100.0% |
| City | Population | Household Income | National Avg. |
| Northville, SD | 155 | $99,375 | 79.6% |
| Warner, SD | 500 | $97,321 | 75.9% |
| Mansfield, SD | 91 | $65,714 | 18.8% |
| Ashton, SD | 91 | $60,938 | 10.2% |
| Mellette, SD | 191 | $53,750 | 2.8% |
| Chelsea, SD | 54 | $132,813 | 140.1% |
| City | Population | Household Income | National Avg. |
| Perryville, AK | 54 | $28,750 | 48.0% |
| Rampart, AK | 54 | $51,875 | 6.2% |
| Putnam, AL | 54 | $0 | 100.0% |
| Copper Hill, AZ | 54 | $0 | 100.0% |
| Fellows, CA | 54 | $0 | 100.0% |
| Chelsea, SD | 54 | $132,813 | 140.1% |