| Index | Marengo | Illinois | National |
| Income per capita | $30,626 | $31,502 | $29,829 |
| Median household income | $69,688 | $59,196 | $55,322 |
| Median income owner occupied | $86,042 | $75,354 | $70,586 |
| Median income renter occupied | $32,050 | $34,488 | $35,192 |
| Median earnings male | $47,831 | $40,474 | $36,919 |
| Median earnings female | $23,954 | $27,197 | $26,250 |
| Unemployment rate | 3.7% | 5.3% | 4.7% |
| Poverty level | 14.7% | 14.0% | 15.1% |


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| Labour Type | Male | Female |
| Construction industry | 11.1% | 11.1% |
| Manufacturing sector | 20.3% | 20.3% |
| Financial & insurance services | 0.0% | 0.0% |
| Wholesale & retail services | 18.7% | 18.7% |
| Public administration | 7.3% | 7.3% |
| Transportation, warehousing & utilities | 5.4% | 5.4% |
| Education, health & social services | 9.3% | 9.3% |
| Other | 26.6% | 26.6% |
| City | Population | Household Income | National Avg. |
| Timberlane, IL | 1,158 | $170,875 | 208.9% |
| Lakewood, IL | 4,013 | $149,583 | 170.4% |
| Sleepy Hollow, IL | 3,276 | $122,121 | 120.7% |
| Algonquin, IL | 30,848 | $109,819 | 98.5% |
| Hampshire, IL | 5,909 | $99,635 | 80.1% |
| Marengo, IL | 7,871 | $69,688 | 26.0% |
| City | Population | Household Income | National Avg. |
| East Zorra-Tavistock, ON | 7,870 | n/a | |
| Lake Geneva, WI | 7,872 | $61,028 | 10.3% |
| Lampasas, TX | 7,869 | $48,765 | 11.9% |
| Blandford-Blenheim, ON | 7,869 | n/a | |
| Woodlawn CDP (Prince George's County), MD | 7,873 | $64,559 | 16.7% |
| Marengo, IL | 7,871 | $69,688 | 26.0% |