| Index | Belle Fourche | South Dakota | National |
| Cost of living | 91 | 92 | 100 |
| Groceries | 100 | 99 | 100 |
| Health care | 98 | 97 | 100 |
| Housing | 74 | 77 | 100 |
| Transportation | 98 | 96 | 100 |
| Utilities | 102 | 103 | 100 |
| Lifestyle & Entertainment | 96 | 94 | 100 |
| Household Items | 97 | 96 | 100 |
| Education & Childcare | 98 | 98 | 100 |

| Cost of living index | |
| Groceries index | |
| Health care index | |
| Housing index | |
| Transportation index | |
| Utilities index | |
| Lifestyle index | |
| Household index | |
| Educare index |
| Median Income | Per Year | Per Month | Max Budget (28% DTI) | Max Budget (36% DTI) |
| Owners | $85,972 | $7,164 | $2,006 | $2,579 |
| Renters | $31,914 | $2,660 | $745 | $958 |
| State | General Sales Tax | With Max Surtax |
| South Dakota | 4.5% | 6% |
| State | Income Tax (Low) | Income Tax (High) |
| South Dakota | 0% | 0% |
| City | Population | Cost of Living Index | National Avg. |
| St. Onge, SD | 26 | 99 | 1.3% |
| Beulah, WY | 0 | 99 | 1.3% |
| Whitewood, SD | 1,014 | 90 | 10.3% |
| Fruitdale, SD | 101 | 90 | 9.8% |
| North Spearfish, SD | 2,322 | 102 | 2.1% |
| Belle Fourche, SD | 5,832 | 91 | 8.7% |
| City | Population | Cost of Living Index | National Avg. |
| Denair, CA | 5,832 | 132 | 31.6% |
| Warrenton, OR | 5,832 | 116 | 16.4% |
| Mayflower Village, CA | 5,833 | 167 | 67.2% |
| Wappingers Falls, NY | 5,833 | 116 | 16.1% |
| Campbelltown, PA | 5,830 | 110 | 10.4% |
| Belle Fourche, SD | 5,832 | 91 | 8.7% |