| Index | North Spearfish | South Dakota | National |
| Income per capita | $35,553 | $27,516 | $29,829 |
| Median household income | $64,706 | $52,078 | $55,322 |
| Median income owner occupied | $68,942 | $66,299 | $70,586 |
| Median income renter occupied | $46,164 | $30,800 | $35,192 |
| Median earnings male | $40,455 | $35,140 | $36,919 |
| Median earnings female | $21,354 | $24,451 | $26,250 |
| Unemployment rate | 1.8% | 2.8% | 4.7% |
| Poverty level | 6.5% | 14.0% | 15.1% |


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| Labour Type | Male | Female |
| Construction industry | 23.8% | 23.8% |
| Manufacturing sector | 18.0% | 18.0% |
| Financial & insurance services | 0.0% | 0.0% |
| Wholesale & retail services | 4.5% | 4.5% |
| Public administration | 1.6% | 1.6% |
| Transportation, warehousing & utilities | 5.4% | 5.4% |
| Education, health & social services | 19.3% | 19.3% |
| Other | 27.4% | 27.4% |
| City | Population | Household Income | National Avg. |
| Spearfish, SD | 11,702 | $50,072 | 9.5% |
| Belle Fourche, SD | 5,628 | $48,212 | 12.9% |
| Whitewood, SD | 986 | $45,972 | 16.9% |
| Lead, SD | 2,979 | $44,278 | 20.0% |
| Deadwood, SD | 1,584 | $41,654 | 24.7% |
| North Spearfish, SD | 2,251 | $64,706 | 17.0% |
| City | Population | Household Income | National Avg. |
| Tunica Resorts, MS | 2,251 | $41,739 | 24.6% |
| Big Lake, WA | 2,251 | $95,313 | 72.3% |
| Mayflower, AR | 2,250 | $51,776 | 6.4% |
| Granville, NY | 2,250 | $39,922 | 27.8% |
| Victoria, VA | 2,250 | $32,727 | 40.8% |
| North Spearfish, SD | 2,251 | $64,706 | 17.0% |