| Index | Tamms | Illinois | National |
| Cost of living | 80 | 98 | 100 |
| Groceries | 97 | 100 | 100 |
| Health care | 96 | 100 | 100 |
| Housing | 41 | 95 | 100 |
| Transportation | 99 | 101 | 100 |
| Utilities | 98 | 99 | 100 |
| Lifestyle & Entertainment | 95 | 100 | 100 |
| Household Items | 99 | 100 | 100 |
| Education & Childcare | 96 | 100 | 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 | $69,685 | $5,807 | $1,626 | $2,091 |
| Renters | $0 | $0 | $0 | $0 |
| State | General Sales Tax | With Max Surtax |
| Illinois | 6.25% | 10.25% |
| State | Income Tax (Low) | Income Tax (High) |
| Illinois | 4.95% | 4.95% |
| City | Population | Cost of Living Index | National Avg. |
| Mill Creek, IL | 31 | 74 | 26.2% |
| Mounds, IL | 947 | 75 | 24.9% |
| Mound City, IL | 803 | 76 | 23.6% |
| Commerce, MO | 115 | 77 | 23.0% |
| Thebes, IL | 571 | 77 | 22.7% |
| Tamms, IL | 721 | 80 | 19.9% |
| City | Population | Cost of Living Index | National Avg. |
| Alta, CA | 721 | 141 | 41.2% |
| Hoboken, GA | 721 | 88 | 11.8% |
| Athol, ID | 721 | 96 | 4.0% |
| South Wilmington, IL | 721 | 94 | 5.6% |
| Potwin, KS | 721 | 81 | 19.5% |
| Tamms, IL | 721 | 80 | 19.9% |