| Index | Glen Carbon | Illinois | National |
| Income per capita | $45,687 | $31,502 | $29,829 |
| Median household income | $84,956 | $59,196 | $55,322 |
| Median income owner occupied | $109,918 | $75,354 | $70,586 |
| Median income renter occupied | $46,904 | $34,488 | $35,192 |
| Median earnings male | $59,888 | $40,474 | $36,919 |
| Median earnings female | $43,210 | $27,197 | $26,250 |
| Unemployment rate | 2.8% | 5.3% | 4.7% |
| Poverty level | 7.2% | 14.0% | 15.1% |


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| Labour Type | Male | Female |
| Construction industry | 6.4% | 6.4% |
| Manufacturing sector | 17.9% | 17.9% |
| Financial & insurance services | 6.0% | 6.0% |
| Wholesale & retail services | 14.4% | 14.4% |
| Public administration | 3.9% | 3.9% |
| Transportation, warehousing & utilities | 6.2% | 6.2% |
| Education, health & social services | 15.3% | 15.3% |
| Other | 29.1% | 29.1% |
| City | Population | Household Income | National Avg. |
| Holiday Shores, IL | 3,080 | $104,038 | 88.1% |
| O'Fallon, IL | 29,487 | $90,432 | 63.5% |
| Shiloh, IL | 13,465 | $87,076 | 57.4% |
| Maryville, IL | 7,962 | $84,293 | 52.4% |
| St. Jacob, IL | 1,529 | $83,750 | 51.4% |
| Glen Carbon, IL | 12,468 | $84,956 | 53.6% |
| City | Population | Household Income | National Avg. |
| Marysville, CA | 12,467 | $47,128 | 14.8% |
| Choctaw, OK | 12,467 | $77,219 | 39.6% |
| Lakeland South, WA | 12,467 | $76,710 | 38.7% |
| Bonita, CA | 12,470 | $102,803 | 85.8% |
| Boone, IA | 12,470 | $60,854 | 10.0% |
| Glen Carbon, IL | 12,468 | $84,956 | 53.6% |