| Index | Fairmont | Illinois | National |
| Income per capita | $31,238 | $47,397 | $44,883 |
| Median household income | $79,799 | $88,967 | $81,333 |
| Median income owner occupied | $79,740 | $111,557 | $106,172 |
| Median income renter occupied | $73,216 | $52,117 | $52,080 |
| Median earnings male | $43,430 | $60,185 | $54,343 |
| Median earnings female | $38,662 | $40,368 | $38,439 |
| Unemployment rate | 3.6% | 6.6% | 4.9% |
| Poverty level | 16.7% | 14.0% | 15.1% |


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| Labour Type | Male | Female |
| Construction industry | 15.4% | 15.4% |
| Manufacturing sector | 14.7% | 14.7% |
| Financial & insurance services | 1.4% | 1.4% |
| Wholesale & retail services | 13.9% | 13.9% |
| Public administration | 1.2% | 1.2% |
| Transportation, warehousing & utilities | 15.8% | 15.8% |
| Education, health & social services | 7.1% | 7.1% |
| Other | 30.5% | 30.5% |
| City | Population | Household Income | National Avg. |
| Burr Ridge, IL | 10,988 | $230,698 | 183.6% |
| Frankfort, IL | 19,886 | $208,825 | 156.8% |
| Plainfield, IL | 45,974 | $198,573 | 144.1% |
| Naperville, IL | 151,582 | $193,565 | 138.0% |
| Lemont, IL | 17,612 | $172,804 | 112.5% |
| Fairmont, IL | 2,777 | $79,799 | 1.9% |
| City | Population | Household Income | National Avg. |
| Henderson, GA | 2,777 | $83,736 | 3.0% |
| Bicknell, IN | 2,776 | $62,104 | 23.6% |
| Fayette, MO | 2,776 | $66,745 | 17.9% |
| Evendale, OH | 2,776 | $246,082 | 202.6% |
| Underwood-Petersville, AL | 2,778 | $58,183 | 28.5% |
| Fairmont, IL | 2,777 | $79,799 | 1.9% |