| Index | Oacoma | South Dakota | National |
| Cost of living | 90 | 92 | 100 |
| Groceries | 98 | 99 | 100 |
| Health care | 95 | 97 | 100 |
| Housing | 73 | 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 | $108,162 | $9,014 | $2,524 | $3,245 |
| Renters | $49,981 | $4,165 | $1,166 | $1,500 |
| 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. |
| Ola, SD | 0 | 96 | 3.5% |
| Reliance, SD | 113 | 78 | 22.1% |
| Pukwana, SD | 365 | 82 | 18.1% |
| Chamberlain, SD | 2,637 | 91 | 9.2% |
| Oacoma, SD | 384 | 90 | 10.4% |
| City | Population | Cost of Living Index | National Avg. |
| Portland, AR | 384 | 78 | 22.2% |
| Mount Clare, IL | 384 | 83 | 17.3% |
| Shelby, IN | 384 | 85 | 15.5% |
| Woodburn, KY | 384 | 89 | 11.5% |
| Beaver Crossing, NE | 384 | 87 | 13.0% |
| Oacoma, SD | 384 | 90 | 10.4% |