| Index | Liberty | Illinois | National |
| Income per capita | $36,344 | $47,397 | $44,883 |
| Median household income | $95,883 | $88,967 | $81,333 |
| Median income owner occupied | $94,167 | $111,557 | $106,172 |
| Median income renter occupied | $0 | $52,117 | $52,080 |
| Median earnings male | $59,849 | $60,185 | $54,343 |
| Median earnings female | $41,587 | $40,368 | $38,439 |
| Unemployment rate | 3.8% | 6.6% | 4.9% |
| Poverty level | 1.8% | 14.0% | 15.1% |

| Labour Type | Male | Female |
| Construction industry | 4.3% | 4.3% |
| Manufacturing sector | 38.0% | 38.0% |
| Financial & insurance services | 2.2% | 2.2% |
| Wholesale & retail services | 23.9% | 23.9% |
| Public administration | 0.0% | 0.0% |
| Transportation, warehousing & utilities | 9.8% | 9.8% |
| Education, health & social services | 6.5% | 6.5% |
| Other | 15.2% | 15.2% |
| City | Population | Household Income | National Avg. |
| Mound Station, IL | 145 | $104,982 | 29.1% |
| Kinderhook, IL | 316 | $97,505 | 19.9% |
| Columbus, IL | 83 | $96,438 | 18.6% |
| Payson, IL | 1,427 | $93,443 | 14.9% |
| Mendon, IL | 1,115 | $84,840 | 4.3% |
| Liberty, IL | 407 | $95,883 | 17.9% |
| City | Population | Household Income | National Avg. |
| Chloride, AZ | 407 | $40,805 | 49.8% |
| Arapahoe, NC | 407 | $101,572 | 24.9% |
| Leeds, NY | 407 | $112,709 | 38.6% |
| Benton Ridge, OH | 407 | $96,065 | 18.1% |
| Hayti, SD | 407 | $69,316 | 14.8% |
| Liberty, IL | 407 | $95,883 | 17.9% |