| Index | Smithfield | Illinois | National |
| Income per capita | $26,699 | $31,502 | $29,829 |
| Median household income | $43,750 | $59,196 | $55,322 |
| Median income owner occupied | $46,250 | $75,354 | $70,586 |
| Median income renter occupied | $0 | $34,488 | $35,192 |
| Median earnings male | $47,778 | $40,474 | $36,919 |
| Median earnings female | $20,000 | $27,197 | $26,250 |
| Unemployment rate | 6.0% | 5.3% | 4.7% |
| Poverty level | 13.3% | 14.0% | 15.1% |
| Labour Type | Male | Female |
| Construction industry | 40.0% | 40.0% |
| Manufacturing sector | 20.0% | 20.0% |
| Financial & insurance services | 0.0% | 0.0% |
| Wholesale & retail services | 2.9% | 2.9% |
| Public administration | 8.6% | 8.6% |
| Transportation, warehousing & utilities | 0.0% | 0.0% |
| Education, health & social services | 5.7% | 5.7% |
| Other | 22.9% | 22.9% |
| City | Population | Household Income | National Avg. |
| Adair, IL | 179 | $78,026 | 41.0% |
| Fairview, IL | 456 | $57,292 | 3.6% |
| Lewistown, IL | 2,021 | $52,393 | 5.3% |
| Norris, IL | 255 | $51,875 | 6.2% |
| Dunfermline, IL | 380 | $51,250 | 7.4% |
| Smithfield, IL | 181 | $43,750 | 20.9% |
| City | Population | Household Income | National Avg. |
| Gulfcrest, AL | 181 | $0 | 100.0% |
| Humnoke, AR | 181 | $37,250 | 32.7% |
| Beaver Valley, AZ | 181 | $0 | 100.0% |
| Olancha, CA | 181 | $59,808 | 8.1% |
| Bristow, IA | 181 | $0 | 100.0% |
| Smithfield, IL | 181 | $43,750 | 20.9% |
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