| Index | Milltown | South Dakota | National |
| Cost of living | 96 | 92 | 100 |
| Groceries | 98 | 99 | 100 |
| Health care | 95 | 97 | 100 |
| Housing | n/a | 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 | $0 | $0 | $0 | $0 |
| 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. |
| Olivet, SD | 85 | 72 | 28.0% |
| Tripp, SD | 593 | 76 | 23.7% |
| Menno, SD | 807 | 79 | 20.7% |
| Ethan, SD | 341 | 86 | 14.1% |
| Emery, SD | 520 | 86 | 13.6% |
| Milltown, SD | 26 | 96 | 3.5% |
| City | Population | Cost of Living Index | National Avg. |
| Mendeltna, AK | 26 | 118 | 18.0% |
| Beyerville, AZ | 26 | 102 | 2.3% |
| Butte Meadows, CA | 26 | 118 | 18.1% |
| Lazy Lake, FL | 26 | 258 | 157.9% |
| Blanchard, IA | 26 | 77 | 23.2% |
| Milltown, SD | 26 | 96 | 3.5% |