| Index | Gardner | Illinois | National |
| Income per capita | $35,716 | $31,502 | $29,829 |
| Median household income | $67,441 | $59,196 | $55,322 |
| Median income owner occupied | $71,471 | $75,354 | $70,586 |
| Median income renter occupied | $36,719 | $34,488 | $35,192 |
| Median earnings male | $47,083 | $40,474 | $36,919 |
| Median earnings female | $40,040 | $27,197 | $26,250 |
| Unemployment rate | 13.9% | 5.3% | 4.7% |
| Poverty level | 6.2% | 14.0% | 15.1% |
| Labour Type | Male | Female |
| Construction industry | 14.2% | 14.2% |
| Manufacturing sector | 31.5% | 31.5% |
| Financial & insurance services | 1.0% | 1.0% |
| Wholesale & retail services | 10.6% | 10.6% |
| Public administration | 3.4% | 3.4% |
| Transportation, warehousing & utilities | 11.1% | 11.1% |
| Education, health & social services | 3.4% | 3.4% |
| Other | 24.8% | 24.8% |
| City | Population | Household Income | National Avg. |
| East Brooklyn, IL | 57 | $91,250 | 64.9% |
| Kinsman, IL | 96 | $81,875 | 48.0% |
| Essex, IL | 1,083 | $81,458 | 47.2% |
| Campus, IL | 122 | $81,250 | 46.9% |
| Elwood, IL | 2,524 | $81,250 | 46.9% |
| Gardner, IL | 1,429 | $67,441 | 21.9% |
| City | Population | Household Income | National Avg. |
| Summerdale, AL | 1,429 | $53,274 | 3.7% |
| Allendale, CA | 1,429 | $103,611 | 87.3% |
| Brookside Village, TX | 1,429 | $73,839 | 33.5% |
| L'Avenir, QC | 1,429 | n/a | |
| Wellman, IA | 1,428 | $47,734 | 13.7% |
| Gardner, IL | 1,429 | $67,441 | 21.9% |
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