| Index | Selby | South Dakota | National |
| Cost of living | 86 | 92 | 100 |
| Groceries | 98 | 99 | 100 |
| Health care | 99 | 97 | 100 |
| Housing | 58 | 77 | 100 |
| Transportation | 94 | 96 | 100 |
| Utilities | 103 | 103 | 100 |
| Lifestyle & Entertainment | 95 | 94 | 100 |
| Household Items | 99 | 96 | 100 |
| Education & Childcare | 96 | 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 | $81,535 | $6,795 | $1,902 | $2,446 |
| Renters | $44,195 | $3,683 | $1,031 | $1,326 |
| 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. |
| Lowry, SD | 3 | 98 | 2.5% |
| Java, SD | 122 | 77 | 22.5% |
| Glenham, SD | 120 | 80 | 19.7% |
| Akaska, SD | 49 | 86 | 13.7% |
| Selby, SD | 526 | 86 | 14.5% |
| City | Population | Cost of Living Index | National Avg. |
| Dutton, AL | 526 | 79 | 20.7% |
| Rose Bud, AR | 526 | 87 | 13.4% |
| Maynard, IA | 526 | 83 | 17.2% |
| Williamsfield, IL | 526 | 84 | 16.3% |
| West Baden Springs, IN | 526 | 86 | 14.0% |
| Selby, SD | 526 | 86 | 14.5% |