| Index | Smithton | Illinois | National |
| Income per capita | $58,393 | $47,397 | $44,883 |
| Median household income | $130,324 | $88,967 | $81,333 |
| Median income owner occupied | $156,853 | $111,557 | $106,172 |
| Median income renter occupied | $47,180 | $52,117 | $52,080 |
| Median earnings male | $86,307 | $60,185 | $54,343 |
| Median earnings female | $52,522 | $40,368 | $38,439 |
| Unemployment rate | 1.2% | 6.6% | 4.9% |
| 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 | 10,985 | $158,048 | 94.3% |
| O'Fallon, IL | 30,151 | $132,987 | 63.5% |
| Shiloh, IL | 13,870 | $129,539 | 59.3% |
| Swansea, IL | 14,604 | $122,386 | 50.5% |
| Maeystown, IL | 108 | $120,842 | 48.6% |
| Smithton, IL | 4,157 | $130,324 | 60.2% |
| City | Population | Household Income | National Avg. |
| Fayetteville, NY | 4,157 | $155,263 | 90.9% |
| Montesano, WA | 4,157 | $74,693 | 8.2% |
| Hiram, GA | 4,156 | $114,283 | 40.5% |
| Kildeer, IL | 4,158 | $320,299 | 293.8% |
| Centerville, MN | 4,155 | $167,697 | 106.2% |
| Smithton, IL | 4,157 | $130,324 | 60.2% |