| Index | Belle Fourche | South Dakota | National |
| Income per capita | $42,464 | $41,166 | $44,883 |
| Median household income | $70,857 | $77,914 | $81,333 |
| Median income owner occupied | $85,972 | $100,475 | $106,172 |
| Median income renter occupied | $31,914 | $45,187 | $52,080 |
| Median earnings male | $64,249 | $52,540 | $54,343 |
| Median earnings female | $26,224 | $36,073 | $38,439 |
| Unemployment rate | 6.8% | 2.9% | 4.9% |
| Poverty level | 11.6% | 14.0% | 15.1% |

| Labour Type | Male | Female |
| Construction industry | 18.7% | 18.7% |
| Manufacturing sector | 13.4% | 13.4% |
| Financial & insurance services | 0.0% | 0.0% |
| Wholesale & retail services | 11.1% | 11.1% |
| Public administration | 4.5% | 4.5% |
| Transportation, warehousing & utilities | 0.3% | 0.3% |
| Education, health & social services | 6.8% | 6.8% |
| Other | 45.1% | 45.1% |
| City | Population | Household Income | National Avg. |
| North Spearfish, SD | 2,322 | $96,754 | 19.0% |
| Spearfish, SD | 12,076 | $74,946 | 7.9% |
| Whitewood, SD | 1,014 | $67,871 | 16.6% |
| St. Onge, SD | 26 | $0 | 100.0% |
| Fruitdale, SD | 101 | $0 | 100.0% |
| Belle Fourche, SD | 5,832 | $70,857 | 12.9% |
| City | Population | Household Income | National Avg. |
| Denair, CA | 5,832 | $125,123 | 53.8% |
| Warrenton, OR | 5,832 | $91,153 | 12.1% |
| Mayflower Village, CA | 5,833 | $148,083 | 82.1% |
| Wappingers Falls, NY | 5,833 | $76,130 | 6.4% |
| Campbelltown, PA | 5,830 | $104,965 | 29.1% |
| Belle Fourche, SD | 5,832 | $70,857 | 12.9% |