| Index | Marengo | Illinois | National |
| Cost of living | 97 | 98 | 100 |
| Groceries | 101 | 100 | 100 |
| Health care | 101 | 100 | 100 |
| Housing | 89 | 95 | 100 |
| Transportation | 100 | 101 | 100 |
| Utilities | 99 | 99 | 100 |
| Lifestyle & Entertainment | 99 | 100 | 100 |
| Household Items | 102 | 100 | 100 |
| Education & Childcare | 100 | 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 | $130,538 | $10,878 | $3,046 | $3,917 |
| Renters | $47,245 | $3,937 | $1,102 | $1,417 |
| 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. |
| Garden Prairie, IL | 271 | 82 | 18.1% |
| Capron, IL | 1,689 | 89 | 10.8% |
| Belvidere, IL | 25,831 | 89 | 10.7% |
| Harvard, IL | 9,547 | 94 | 5.8% |
| Kirkland, IL | 1,555 | 97 | 3.5% |
| Marengo, IL | 8,096 | 97 | 3.1% |
| City | Population | Cost of Living Index | National Avg. |
| McGregor, FL | 8,095 | 123 | 23.0% |
| Grand Blanc, MI | 8,098 | 95 | 5.1% |
| St. Marys, ON | 8,093 | n/a | |
| Marion, NC | 8,099 | 88 | 12.4% |
| Floresville, TX | 8,092 | 96 | 4.1% |
| Marengo, IL | 8,096 | 97 | 3.1% |