| Index | Marseilles | Illinois | National |
| Income per capita | $26,182 | $31,502 | $29,829 |
| Median household income | $51,835 | $59,196 | $55,322 |
| Median income owner occupied | $63,189 | $75,354 | $70,586 |
| Median income renter occupied | $36,053 | $34,488 | $35,192 |
| Median earnings male | $40,276 | $40,474 | $36,919 |
| Median earnings female | $25,524 | $27,197 | $26,250 |
| Unemployment rate | 4.2% | 5.3% | 4.7% |
| Poverty level | 20.3% | 14.0% | 15.1% |


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| Labour Type | Male | Female |
| Construction industry | 18.5% | 18.5% |
| Manufacturing sector | 16.3% | 16.3% |
| Financial & insurance services | 0.0% | 0.0% |
| Wholesale & retail services | 11.4% | 11.4% |
| Public administration | 0.8% | 0.8% |
| Transportation, warehousing & utilities | 19.6% | 19.6% |
| Education, health & social services | 4.0% | 4.0% |
| Other | 24.1% | 24.1% |
| City | Population | Household Income | National Avg. |
| Newark, IL | 1,325 | $101,750 | 83.9% |
| Dayton, IL | 475 | $86,125 | 55.7% |
| Kinsman, IL | 96 | $81,875 | 48.0% |
| Seneca, IL | 2,534 | $74,907 | 35.4% |
| Sheridan, IL | 2,829 | $70,925 | 28.2% |
| Marseilles, IL | 4,579 | $51,835 | 6.3% |
| City | Population | Household Income | National Avg. |
| Boiling Springs, NC | 4,580 | $73,457 | 32.8% |
| Donora, PA | 4,580 | $39,560 | 28.5% |
| Friendship Heights Village, MD | 4,577 | $106,771 | 93.0% |
| Blood 148, AB | 4,581 | n/a | |
| Bridgeport, PA | 4,576 | $54,527 | 1.4% |
| Marseilles, IL | 4,579 | $51,835 | 6.3% |