| Index | Mellette | South Dakota | National |
| Cost of living | 86 | 92 | 100 |
| Groceries | 101 | 99 | 100 |
| Health care | 100 | 97 | 100 |
| Housing | 54 | 77 | 100 |
| Transportation | 95 | 96 | 100 |
| Utilities | 104 | 103 | 100 |
| Lifestyle & Entertainment | 101 | 94 | 100 |
| Household Items | 97 | 96 | 100 |
| Education & Childcare | 100 | 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 | $80,027 | $6,669 | $1,867 | $2,401 |
| Renters | $79,439 | $6,620 | $1,853 | $2,383 |
| 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. |
| Brentford, SD | 63 | 100 | 0.3% |
| Mansfield, SD | 93 | 75 | 24.9% |
| Chelsea, SD | 55 | 77 | 22.6% |
| Stratford, SD | 43 | 78 | 21.8% |
| Ashton, SD | 94 | 77 | 22.7% |
| Mellette, SD | 195 | 86 | 14.1% |
| City | Population | Cost of Living Index | National Avg. |
| Halibut Cove, AK | 195 | 139 | 39.2% |
| Lutak, AK | 195 | 114 | 14.2% |
| Huetter, ID | 195 | 103 | 3.3% |
| Plattville, IL | 195 | 110 | 9.6% |
| Corunna, IN | 195 | 84 | 16.1% |
| Mellette, SD | 195 | 86 | 14.1% |