| Index | Humboldt | South Dakota | National |
| Income per capita | $24,442 | $27,516 | $29,829 |
| Median household income | $71,000 | $52,078 | $55,322 |
| Median income owner occupied | $79,722 | $66,299 | $70,586 |
| Median income renter occupied | $0 | $30,800 | $35,192 |
| Median earnings male | $47,589 | $35,140 | $36,919 |
| Median earnings female | $30,083 | $24,451 | $26,250 |
| Unemployment rate | 1.9% | 2.8% | 4.7% |
| Poverty level | 1.7% | 14.0% | 15.1% |


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| Labour Type | Male | Female |
| Construction industry | 19.0% | 19.0% |
| Manufacturing sector | 20.9% | 20.9% |
| Financial & insurance services | 1.2% | 1.2% |
| Wholesale & retail services | 19.0% | 19.0% |
| Public administration | 3.1% | 3.1% |
| Transportation, warehousing & utilities | 10.4% | 10.4% |
| Education, health & social services | 9.2% | 9.2% |
| Other | 17.2% | 17.2% |
| City | Population | Household Income | National Avg. |
| Crooks, SD | 1,408 | $101,932 | 84.3% |
| Tea, SD | 5,714 | $89,452 | 61.7% |
| Hartford, SD | 3,300 | $80,874 | 46.2% |
| Colton, SD | 754 | $70,230 | 26.9% |
| Montrose, SD | 551 | $56,250 | 1.7% |
| Humboldt, SD | 676 | $71,000 | 28.3% |
| City | Population | Household Income | National Avg. |
| Alhambra, IL | 676 | $50,714 | 8.3% |
| Cannonsburg, KY | 676 | $62,589 | 13.1% |
| Estherwood, LA | 676 | $36,250 | 34.5% |
| Sunfield, MI | 676 | $58,281 | 5.3% |
| Arcadia, OH | 676 | $66,250 | 19.8% |
| Humboldt, SD | 676 | $71,000 | 28.3% |