| Index | Brentford | South Dakota | National |
| Cost of living | 100 | 92 | 100 |
| Groceries | 101 | 99 | 100 |
| Health care | 100 | 97 | 100 |
| Housing | n/a | 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 | $50,218 | $4,185 | $1,172 | $1,507 |
| 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. |
| Ferney, SD | 39 | 100 | 0.3% |
| Verdon, SD | 3 | 100 | 0.3% |
| Mansfield, SD | 93 | 75 | 24.9% |
| Conde, SD | 136 | 78 | 22.3% |
| Stratford, SD | 43 | 78 | 21.8% |
| Brentford, SD | 63 | 100 | 0.3% |
| City | Population | Cost of Living Index | National Avg. |
| Jennette, AR | 63 | 78 | 22.0% |
| Mount Hebron, CA | 63 | 107 | 7.1% |
| Rodriguez Camp, CA | 63 | 117 | 16.7% |
| Olowalu, HI | 63 | 303 | 203.5% |
| Bradford, IA | 63 | 96 | 4.1% |
| Brentford, SD | 63 | 100 | 0.3% |