| Index | Humboldt | South Dakota | National |
| Cost of living | 90 | 92 | 100 |
| Groceries | 98 | 99 | 100 |
| Health care | 95 | 97 | 100 |
| Housing | 73 | 77 | 100 |
| Transportation | 93 | 96 | 100 |
| Utilities | 104 | 103 | 100 |
| Lifestyle & Entertainment | 93 | 94 | 100 |
| Household Items | 95 | 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 | $121,077 | $10,090 | $2,825 | $3,633 |
| Renters | $0 | $0 | $0 | $0 |
| 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. |
| Monroe, SD | 215 | 77 | 22.6% |
| Canistota, SD | 688 | 83 | 16.8% |
| Colton, SD | 770 | 88 | 12.4% |
| Montrose, SD | 568 | 88 | 12.0% |
| Hartford, SD | 3,408 | 95 | 5.3% |
| Humboldt, SD | 699 | 90 | 10.5% |
| City | Population | Cost of Living Index | National Avg. |
| Bergman, AR | 699 | 82 | 17.5% |
| Stanwood, IA | 699 | 86 | 14.0% |
| Union, IL | 699 | 99 | 1.2% |
| Sandyfield, NC | 699 | 83 | 17.2% |
| LaMoure, ND | 699 | 86 | 14.5% |
| Humboldt, SD | 699 | 90 | 10.5% |