| Index | Illiopolis | Illinois | National |
| Income per capita | $42,447 | $47,397 | $44,883 |
| Median household income | $95,852 | $88,967 | $81,333 |
| Median income owner occupied | $109,344 | $111,557 | $106,172 |
| Median income renter occupied | $35,420 | $52,117 | $52,080 |
| Median earnings male | $77,822 | $60,185 | $54,343 |
| Median earnings female | $49,492 | $40,368 | $38,439 |
| Unemployment rate | 2.7% | 6.6% | 4.9% |
| Poverty level | 12.1% | 14.0% | 15.1% |

| Labour Type | Male | Female |
| Construction industry | 11.5% | 11.5% |
| Manufacturing sector | 21.3% | 21.3% |
| Financial & insurance services | 0.6% | 0.6% |
| Wholesale & retail services | 18.4% | 18.4% |
| Public administration | 13.8% | 13.8% |
| Transportation, warehousing & utilities | 6.9% | 6.9% |
| Education, health & social services | 9.2% | 9.2% |
| Other | 18.4% | 18.4% |
| City | Population | Household Income | National Avg. |
| Mechanicsburg, IL | 942 | $121,730 | 49.7% |
| Elkhart, IL | 469 | $105,094 | 29.2% |
| Macon, IL | 1,122 | $97,418 | 19.8% |
| Warrensburg, IL | 1,292 | $93,803 | 15.3% |
| Edinburg, IL | 1,114 | $91,569 | 12.6% |
| Illiopolis, IL | 792 | $95,852 | 17.9% |
| City | Population | Household Income | National Avg. |
| Millry, AL | 792 | $57,631 | 29.1% |
| McNary, AZ | 792 | $71,392 | 12.2% |
| Bluffs, IL | 792 | $91,805 | 12.9% |
| Lakeville, IN | 792 | $58,764 | 27.7% |
| Erick, OK | 792 | $40,723 | 49.9% |
| Illiopolis, IL | 792 | $95,852 | 17.9% |