| Index | St. Joseph | Illinois | National |
| Income per capita | $35,292 | $31,502 | $29,829 |
| Median household income | $93,621 | $59,196 | $55,322 |
| Median income owner occupied | $102,577 | $75,354 | $70,586 |
| Median income renter occupied | $0 | $34,488 | $35,192 |
| Median earnings male | $55,586 | $40,474 | $36,919 |
| Median earnings female | $48,514 | $27,197 | $26,250 |
| Unemployment rate | 1.6% | 5.3% | 4.7% |
| Poverty level | 5.2% | 14.0% | 15.1% |
| Labour Type | Male | Female |
| Construction industry | 11.9% | 11.9% |
| Manufacturing sector | 6.9% | 6.9% |
| Financial & insurance services | 4.2% | 4.2% |
| Wholesale & retail services | 14.5% | 14.5% |
| Public administration | 7.8% | 7.8% |
| Transportation, warehousing & utilities | 3.6% | 3.6% |
| Education, health & social services | 12.8% | 12.8% |
| Other | 37.2% | 37.2% |
| City | Population | Household Income | National Avg. |
| Philo, IL | 1,398 | $91,156 | 64.8% |
| Pesotum, IL | 447 | $76,339 | 38.0% |
| Sidney, IL | 1,297 | $76,250 | 37.8% |
| Penfield, IL | 235 | $76,250 | 37.8% |
| Royal, IL | 370 | $75,750 | 36.9% |
| St. Joseph, IL | 4,053 | $93,621 | 69.2% |
| City | Population | Household Income | National Avg. |
| Cannon Falls, MN | 4,053 | $65,655 | 18.7% |
| St. James, MO | 4,053 | $42,578 | 23.0% |
| Northern Lights County, AB | 4,053 | n/a | |
| Mount Olive, AL | 4,052 | $76,250 | 37.8% |
| Singac, NJ | 4,054 | $84,086 | 52.0% |
| St. Joseph, IL | 4,053 | $93,621 | 69.2% |
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