| Index | Brant Lake | South Dakota | National |
| Income per capita | $52,512 | $27,516 | $29,829 |
| Median household income | $86,058 | $52,078 | $55,322 |
| Median income owner occupied | $86,731 | $66,299 | $70,586 |
| Median income renter occupied | $0 | $30,800 | $35,192 |
| Median earnings male | $71,071 | $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 | 84.6% | 84.6% |
| Public administration | 0.0% | 0.0% |
| Transportation, warehousing & utilities | 0.0% | 0.0% |
| Education, health & social services | 15.4% | 15.4% |
| Other | 0.0% | 0.0% |
| City | Population | Household Income | National Avg. |
| Lake Madison, SD | 811 | $97,961 | 77.1% |
| Colman, SD | 683 | $84,318 | 52.4% |
| Baltic, SD | 1,169 | $78,056 | 41.1% |
| Dell Rapids, SD | 3,678 | $72,046 | 30.2% |
| Colton, SD | 754 | $70,230 | 26.9% |
| Brant Lake, SD | 66 | $86,058 | 55.6% |
| City | Population | Household Income | National Avg. |
| Ali Molina, AZ | 66 | $0 | 100.0% |
| Agenda, KS | 66 | $41,250 | 25.4% |
| Roseland, KS | 66 | $76,875 | 39.0% |
| Burna, KY | 66 | $77,692 | 40.4% |
| Sunburg, MN | 66 | $38,750 | 30.0% |
| Brant Lake, SD | 66 | $86,058 | 55.6% |