| Index | Middletown | Illinois | National |
| Income per capita | $37,271 | $47,397 | $44,883 |
| Median household income | $77,226 | $88,967 | $81,333 |
| Median income owner occupied | $79,266 | $111,557 | $106,172 |
| Median income renter occupied | $64,229 | $52,117 | $52,080 |
| Median earnings male | $40,249 | $60,185 | $54,343 |
| Median earnings female | $42,945 | $40,368 | $38,439 |
| Unemployment rate | 1.3% | 6.6% | 4.9% |
| Poverty level | 11.3% | 14.0% | 15.1% |


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| Labour Type | Male | Female |
| Construction industry | 19.6% | 19.6% |
| Manufacturing sector | 15.7% | 15.7% |
| Financial & insurance services | 2.0% | 2.0% |
| Wholesale & retail services | 9.8% | 9.8% |
| Public administration | 9.8% | 9.8% |
| Transportation, warehousing & utilities | 2.0% | 2.0% |
| Education, health & social services | 2.0% | 2.0% |
| Other | 39.2% | 39.2% |
| City | Population | Household Income | National Avg. |
| Sherman, IL | 4,619 | $185,165 | 127.7% |
| Lake Petersburg, IL | 561 | $145,146 | 78.5% |
| Williamsville, IL | 1,518 | $126,573 | 55.6% |
| New Holland, IL | 267 | $115,608 | 42.1% |
| Athens, IL | 2,433 | $114,826 | 41.2% |
| Middletown, IL | 216 | $77,226 | 5.0% |
| City | Population | Household Income | National Avg. |
| Cantwell, AK | 216 | $45,977 | 43.5% |
| Kaltag, AK | 216 | $43,331 | 46.7% |
| Adin, CA | 216 | $58,050 | 28.6% |
| Tecopa, CA | 216 | $48,554 | 40.3% |
| Campbellton, FL | 216 | $42,772 | 47.4% |
| Middletown, IL | 216 | $77,226 | 5.0% |