| Index | Buffalo | Illinois | National |
| Income per capita | $44,896 | $47,397 | $44,883 |
| Median household income | $78,738 | $88,967 | $81,333 |
| Median income owner occupied | $83,576 | $111,557 | $106,172 |
| Median income renter occupied | $45,658 | $52,117 | $52,080 |
| Median earnings male | $72,973 | $60,185 | $54,343 |
| Median earnings female | $38,424 | $40,368 | $38,439 |
| Unemployment rate | 2.9% | 6.6% | 4.9% |
| Poverty level | 11.0% | 14.0% | 15.1% |


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| Labour Type | Male | Female |
| Construction industry | 17.2% | 17.2% |
| Manufacturing sector | 2.0% | 2.0% |
| Financial & insurance services | 0.0% | 0.0% |
| Wholesale & retail services | 11.1% | 11.1% |
| Public administration | 14.1% | 14.1% |
| Transportation, warehousing & utilities | 8.1% | 8.1% |
| Education, health & social services | 9.1% | 9.1% |
| Other | 38.4% | 38.4% |
| City | Population | Household Income | National Avg. |
| Sherman, IL | 4,619 | $185,165 | 127.7% |
| Leland Grove, IL | 1,274 | $165,047 | 102.9% |
| Spaulding, IL | 985 | $156,428 | 92.3% |
| Rochester, IL | 3,914 | $139,866 | 72.0% |
| Williamsville, IL | 1,518 | $126,573 | 55.6% |
| Buffalo, IL | 355 | $78,738 | 3.2% |
| City | Population | Household Income | National Avg. |
| Harrell, AR | 355 | $107,379 | 32.0% |
| Patterson, AR | 355 | $39,786 | 51.1% |
| Shirley, AR | 355 | $66,959 | 17.7% |
| Crows Landing, CA | 355 | $45,658 | 43.9% |
| Mad River, CA | 355 | $0 | 100.0% |
| Buffalo, IL | 355 | $78,738 | 3.2% |