| Index | Lake Madison | South Dakota | National |
| Cost of living | 119 | 92 | 100 |
| Groceries | 98 | 99 | 100 |
| Health care | 95 | 97 | 100 |
| Housing | 171 | 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 | $147,528 | $12,294 | $3,442 | $4,426 |
| Renters | $109,910 | $9,159 | $2,564 | $3,298 |
| 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. |
| Winfred, SD | 69 | 96 | 3.5% |
| Wentworth, SD | 157 | 74 | 25.6% |
| Ramona, SD | 426 | 81 | 18.9% |
| Nunda, SD | 51 | 82 | 18.2% |
| Chester, SD | 292 | 88 | 12.3% |
| Lake Madison, SD | 833 | 119 | 18.8% |
| City | Population | Cost of Living Index | National Avg. |
| Imboden, AR | 833 | 78 | 21.5% |
| Cobb, CA | 833 | 128 | 27.7% |
| Henning, MN | 833 | 87 | 12.5% |
| Pearlington, MS | 833 | 83 | 16.7% |
| Peña Blanca, NM | 833 | 91 | 8.6% |
| Lake Madison, SD | 833 | 119 | 18.8% |