| Index | North Spearfish | South Dakota | National |
| Income per capita | $52,505 | $41,166 | $44,883 |
| Median household income | $96,754 | $77,914 | $81,333 |
| Median income owner occupied | $104,116 | $100,475 | $106,172 |
| Median income renter occupied | $68,721 | $45,187 | $52,080 |
| Median earnings male | $58,582 | $52,540 | $54,343 |
| Median earnings female | $31,989 | $36,073 | $38,439 |
| Unemployment rate | 1.9% | 2.9% | 4.9% |
| Poverty level | 6.5% | 14.0% | 15.1% |

| 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 | 12,076 | $74,946 | 7.9% |
| Belle Fourche, SD | 5,832 | $70,857 | 12.9% |
| Whitewood, SD | 1,014 | $67,871 | 16.6% |
| Lead, SD | 3,089 | $67,005 | 17.6% |
| Deadwood, SD | 1,630 | $61,978 | 23.8% |
| North Spearfish, SD | 2,322 | $96,754 | 19.0% |
| City | Population | Household Income | National Avg. |
| Westbrook Center, CT | 2,322 | $97,505 | 19.9% |
| Newton, TX | 2,321 | $50,055 | 38.5% |
| Terrace Park, OH | 2,320 | $262,142 | 222.3% |
| Whitehall, NY | 2,324 | $52,014 | 36.0% |
| Ahwahnee, CA | 2,319 | $114,866 | 41.2% |
| North Spearfish, SD | 2,322 | $96,754 | 19.0% |