| Index | Smithton | Illinois | National |
| Income per capita | $38,748 | $31,502 | $29,829 |
| Median household income | $88,879 | $59,196 | $55,322 |
| Median income owner occupied | $105,905 | $75,354 | $70,586 |
| Median income renter occupied | $31,483 | $34,488 | $35,192 |
| Median earnings male | $58,759 | $40,474 | $36,919 |
| Median earnings female | $35,320 | $27,197 | $26,250 |
| Unemployment rate | 1.2% | 5.3% | 4.7% |
| Poverty level | 2.4% | 14.0% | 15.1% |


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| Labour Type | Male | Female |
| Construction industry | 17.0% | 17.0% |
| Manufacturing sector | 12.7% | 12.7% |
| Financial & insurance services | 2.2% | 2.2% |
| Wholesale & retail services | 9.6% | 9.6% |
| Public administration | 18.0% | 18.0% |
| Transportation, warehousing & utilities | 10.6% | 10.6% |
| Education, health & social services | 12.3% | 12.3% |
| Other | 14.2% | 14.2% |
| City | Population | Household Income | National Avg. |
| Columbia, IL | 10,692 | $107,500 | 94.3% |
| O'Fallon, IL | 29,487 | $90,432 | 63.5% |
| Shiloh, IL | 13,465 | $87,076 | 57.4% |
| Maeystown, IL | 106 | $82,500 | 49.1% |
| Swansea, IL | 14,100 | $81,625 | 47.5% |
| Smithton, IL | 4,019 | $88,879 | 60.7% |
| City | Population | Household Income | National Avg. |
| Oak Valley, NJ | 4,018 | $82,311 | 48.8% |
| Granite Hills, CA | 4,020 | $121,902 | 120.3% |
| Pleasant Hills, MD | 4,017 | $121,974 | 120.5% |
| Baldwin, WI | 4,017 | $69,549 | 25.7% |
| Hiram, GA | 4,021 | $76,051 | 37.5% |
| Smithton, IL | 4,019 | $88,879 | 60.7% |