| Index | Clark | South Dakota | National |
| Cost of living | 82 | 92 | 100 |
| Groceries | 98 | 99 | 100 |
| Health care | 95 | 97 | 100 |
| Housing | 49 | 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 | $66,455 | $5,538 | $1,551 | $1,994 |
| Renters | $43,756 | $3,646 | $1,021 | $1,313 |
| 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. |
| Bradley, SD | 71 | 96 | 3.5% |
| Naples, SD | 45 | 96 | 3.5% |
| Garden City, SD | 97 | 72 | 28.1% |
| Raymond, SD | 33 | 72 | 28.0% |
| Wallace, SD | 70 | 74 | 25.5% |
| Clark, SD | 1,272 | 82 | 17.7% |
| City | Population | Cost of Living Index | National Avg. |
| Brilliant, AL | 1,272 | 80 | 20.3% |
| Milford, IL | 1,272 | 82 | 17.6% |
| Shelton, NE | 1,272 | 87 | 13.1% |
| Newville, PA | 1,272 | 91 | 9.3% |
| Saint-Valère, QC | 1,272 | n/a | |
| Clark, SD | 1,272 | 82 | 17.7% |