| Index | Mendon | Illinois | National |
| Cost of living | 86 | 98 | 100 |
| Groceries | 98 | 100 | 100 |
| Health care | 99 | 100 | 100 |
| Housing | 57 | 95 | 100 |
| Transportation | 100 | 101 | 100 |
| Utilities | 99 | 99 | 100 |
| Lifestyle & Entertainment | 100 | 100 | 100 |
| Household Items | 101 | 100 | 100 |
| Education & Childcare | 95 | 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 | $94,021 | $7,835 | $2,194 | $2,821 |
| Renters | $68,594 | $5,716 | $1,600 | $2,058 |
| 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. |
| West Point, IL | 223 | 76 | 23.8% |
| Bowen, IL | 599 | 78 | 21.7% |
| La Prairie, IL | 65 | 82 | 17.6% |
| Lima, IL | 109 | 83 | 16.7% |
| La Grange, MO | 969 | 83 | 16.6% |
| Mendon, IL | 1,115 | 86 | 13.8% |
| City | Population | Cost of Living Index | National Avg. |
| Victoria, KS | 1,115 | 93 | 6.8% |
| Red Cloud, NE | 1,115 | 79 | 21.1% |
| Marlborough, NH | 1,115 | 108 | 8.2% |
| Woodway, WA | 1,115 | 279 | 179.3% |
| Avilla, AR | 1,116 | 103 | 3.0% |
| Mendon, IL | 1,115 | 86 | 13.8% |