| Index | Potomac | Illinois | National |
| Income per capita | $23,209 | $31,502 | $29,829 |
| Median household income | $50,333 | $59,196 | $55,322 |
| Median income owner occupied | $57,708 | $75,354 | $70,586 |
| Median income renter occupied | $36,932 | $34,488 | $35,192 |
| Median earnings male | $36,797 | $40,474 | $36,919 |
| Median earnings female | $28,125 | $27,197 | $26,250 |
| Unemployment rate | 3.7% | 5.3% | 4.7% |
| Poverty level | 12.8% | 14.0% | 15.1% |


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| Labour Type | Male | Female |
| Construction industry | 15.6% | 15.6% |
| Manufacturing sector | 26.0% | 26.0% |
| Financial & insurance services | 0.0% | 0.0% |
| Wholesale & retail services | 11.6% | 11.6% |
| Public administration | 1.7% | 1.7% |
| Transportation, warehousing & utilities | 10.4% | 10.4% |
| Education, health & social services | 6.4% | 6.4% |
| Other | 28.3% | 28.3% |
| City | Population | Household Income | National Avg. |
| St. Joseph, IL | 4,053 | $93,621 | 69.2% |
| Penfield, IL | 235 | $76,250 | 37.8% |
| Royal, IL | 370 | $75,750 | 36.9% |
| Muncie, IL | 115 | $68,125 | 23.1% |
| Henning, IL | 258 | $65,625 | 18.6% |
| Potomac, IL | 744 | $50,333 | 9.0% |
| City | Population | Household Income | National Avg. |
| Clayhatchee, AL | 744 | $45,724 | 17.3% |
| Panacea, FL | 744 | $26,667 | 51.8% |
| New Harmony, IN | 744 | $45,208 | 18.3% |
| Parkdale, MI | 744 | $33,125 | 40.1% |
| Cedar Bluffs, NE | 744 | $60,577 | 9.5% |
| Potomac, IL | 744 | $50,333 | 9.0% |