| Index | Twin Brooks | South Dakota | National |
| Cost of living | 80 | 92 | 100 |
| Groceries | 101 | 99 | 100 |
| Health care | 100 | 97 | 100 |
| Housing | 35 | 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 | $76,374 | $6,365 | $1,782 | $2,291 |
| 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. |
| Waverly, SD | 53 | 96 | 3.5% |
| Albee, SD | 4 | 96 | 3.5% |
| Revillo, SD | 119 | 96 | 3.5% |
| La Bolt, SD | 103 | 76 | 24.0% |
| Corona, SD | 46 | 79 | 21.0% |
| Twin Brooks, SD | 46 | 80 | 19.9% |
| City | Population | Cost of Living Index | National Avg. |
| Ocotillo, CA | 46 | 113 | 13.4% |
| Volcano, CA | 46 | 114 | 13.8% |
| Whitley Gardens, CA | 46 | 114 | 14.2% |
| Fenwick, CT | 46 | 408 | 308.2% |
| Balltown, IA | 46 | 98 | 1.5% |
| Twin Brooks, SD | 46 | 80 | 19.9% |