| Index | Rockdale | Illinois | National |
| Cost of living | 95 | 98 | 100 |
| Groceries | 99 | 100 | 100 |
| Health care | 97 | 100 | 100 |
| Housing | 84 | 95 | 100 |
| Transportation | 100 | 101 | 100 |
| Utilities | 101 | 99 | 100 |
| Lifestyle & Entertainment | 99 | 100 | 100 |
| Household Items | 98 | 100 | 100 |
| Education & Childcare | 106 | 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 | $115,432 | $9,619 | $2,693 | $3,463 |
| Renters | $61,246 | $5,104 | $1,429 | $1,838 |
| 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. |
| Wilmington village, IL | 150 | 79 | 21.3% |
| Preston Heights, IL | 2,583 | 92 | 7.8% |
| Ingalls Park, IL | 3,100 | 92 | 7.6% |
| Fairmont, IL | 2,777 | 94 | 6.0% |
| Symerton, IL | 74 | 94 | 6.0% |
| Rockdale, IL | 2,487 | 95 | 4.9% |
| City | Population | Cost of Living Index | National Avg. |
| Strafford, MO | 2,487 | 89 | 11.0% |
| Excelsior, MN | 2,486 | 167 | 66.5% |
| Pottsboro, TX | 2,486 | 97 | 2.6% |
| Haverhill, FL | 2,488 | 116 | 15.7% |
| Belmond, IA | 2,488 | 82 | 17.8% |
| Rockdale, IL | 2,487 | 95 | 4.9% |