| Index | Petersburg | Illinois | National |
| Income per capita | $64,794 | $47,397 | $44,883 |
| Median household income | $92,600 | $88,967 | $81,333 |
| Median income owner occupied | $105,609 | $111,557 | $106,172 |
| Median income renter occupied | $52,832 | $52,117 | $52,080 |
| Median earnings male | $59,431 | $60,185 | $54,343 |
| Median earnings female | $51,289 | $40,368 | $38,439 |
| Unemployment rate | 4.4% | 6.6% | 4.9% |
| Poverty level | 13.5% | 14.0% | 15.1% |

| Labour Type | Male | Female |
| Construction industry | 10.3% | 10.3% |
| Manufacturing sector | 2.4% | 2.4% |
| Financial & insurance services | 0.9% | 0.9% |
| Wholesale & retail services | 8.2% | 8.2% |
| Public administration | 4.5% | 4.5% |
| Transportation, warehousing & utilities | 12.2% | 12.2% |
| Education, health & social services | 21.8% | 21.8% |
| Other | 38.1% | 38.1% |
| City | Population | Household Income | National Avg. |
| Sherman, IL | 4,619 | $185,165 | 127.7% |
| Lake Petersburg, IL | 561 | $145,146 | 78.5% |
| New Holland, IL | 267 | $115,608 | 42.1% |
| Athens, IL | 2,433 | $114,826 | 41.2% |
| Cantrall, IL | 107 | $108,256 | 33.1% |
| Petersburg, IL | 2,626 | $92,600 | 13.9% |
| City | Population | Household Income | National Avg. |
| Cave City, KY | 2,626 | $41,129 | 49.4% |
| Yorkville, NY | 2,626 | $73,726 | 9.4% |
| Brewster Hill, NY | 2,625 | $129,109 | 58.7% |
| Apalachicola, FL | 2,627 | $76,796 | 5.6% |
| Lakeview Estates, GA | 2,627 | $52,260 | 35.7% |
| Petersburg, IL | 2,626 | $92,600 | 13.9% |