| Index | Waubay | South Dakota | National |
| Cost of living | 83 | 92 | 100 |
| Groceries | 101 | 99 | 100 |
| Health care | 100 | 97 | 100 |
| Housing | 45 | 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 | $63,312 | $5,276 | $1,477 | $1,900 |
| Renters | $17,910 | $1,493 | $418 | $537 |
| 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. |
| Grenville, SD | 72 | 100 | 0.3% |
| Ortley, SD | 60 | 76 | 24.0% |
| Roslyn, SD | 229 | 82 | 18.1% |
| Summit, SD | 353 | 83 | 17.0% |
| Webster, SD | 1,728 | 85 | 14.7% |
| Waubay, SD | 550 | 83 | 16.7% |
| City | Population | Cost of Living Index | National Avg. |
| Cumming, IA | 550 | 118 | 18.0% |
| Bancroft, KY | 550 | 118 | 17.7% |
| Sledge, MS | 550 | 80 | 20.2% |
| Newcomb, NM | 550 | 79 | 21.2% |
| Quincy, OH | 550 | 84 | 16.3% |
| Waubay, SD | 550 | 83 | 16.7% |