| Index | Poplar Grove | Illinois | National |
| Cost of living | 103 | 98 | 100 |
| Groceries | 98 | 100 | 100 |
| Health care | 98 | 100 | 100 |
| Housing | 116 | 95 | 100 |
| Transportation | 100 | 101 | 100 |
| Utilities | 96 | 99 | 100 |
| Lifestyle & Entertainment | 94 | 100 | 100 |
| Household Items | 97 | 100 | 100 |
| Education & Childcare | 97 | 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 | $118,260 | $9,855 | $2,759 | $3,548 |
| Renters | $108,098 | $9,008 | $2,522 | $3,243 |
| 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% |
| Rockford, IL | 151,169 | 87 | 13.5% |
| Beloit, WI | 37,938 | 87 | 12.7% |
| Capron, IL | 1,689 | 89 | 10.8% |
| Belvidere, IL | 25,831 | 89 | 10.7% |
| Poplar Grove, IL | 4,641 | 103 | 2.9% |
| City | Population | Cost of Living Index | National Avg. |
| Benton, KY | 4,641 | 90 | 10.1% |
| Montgomery, NY | 4,641 | 119 | 18.6% |
| Wamego, KS | 4,642 | 93 | 7.2% |
| Aurora, NE | 4,642 | 92 | 8.5% |
| Saint-Denis-de-Brompton, QC | 4,642 | n/a | |
| Poplar Grove, IL | 4,641 | 103 | 2.9% |