| Index | Harristown | Illinois | National |
| Cost of living | 86 | 98 | 100 |
| Groceries | 98 | 100 | 100 |
| Health care | 99 | 100 | 100 |
| Housing | 58 | 95 | 100 |
| Transportation | 100 | 101 | 100 |
| Utilities | 100 | 99 | 100 |
| Lifestyle & Entertainment | 94 | 100 | 100 |
| Household Items | 98 | 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 | $90,105 | $7,509 | $2,102 | $2,703 |
| Renters | $52,897 | $4,408 | $1,234 | $1,587 |
| 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. |
| Chestnut, IL | 39 | 98 | 2.1% |
| Boody, IL | 460 | 83 | 17.4% |
| Niantic, IL | 680 | 83 | 16.9% |
| Latham, IL | 366 | 84 | 16.3% |
| Mount Auburn, IL | 662 | 85 | 15.4% |
| Harristown, IL | 1,343 | 86 | 14.1% |
| City | Population | Cost of Living Index | National Avg. |
| Melcher-Dallas, IA | 1,343 | 80 | 19.6% |
| Sand Lake, MI | 1,343 | 85 | 14.9% |
| Fulda, MN | 1,343 | 88 | 12.2% |
| Winthrop, MN | 1,343 | 89 | 10.7% |
| Larimore, ND | 1,343 | 91 | 9.3% |
| Harristown, IL | 1,343 | 86 | 14.1% |