| Index | Petersburg | Indiana | National |
| Income per capita | $25,809 | $26,117 | $29,829 |
| Median household income | $53,241 | $50,433 | $55,322 |
| Median income owner occupied | $67,893 | $62,593 | $70,586 |
| Median income renter occupied | $18,352 | $29,285 | $35,192 |
| Median earnings male | $47,404 | $36,194 | $36,919 |
| Median earnings female | $21,516 | $23,580 | $26,250 |
| Unemployment rate | 0.2% | 4.4% | 4.7% |
| Poverty level | 17.2% | 15.0% | 15.1% |
| Labour Type | Male | Female |
| Construction industry | 3.9% | 3.9% |
| Manufacturing sector | 28.9% | 28.9% |
| Financial & insurance services | 3.0% | 3.0% |
| Wholesale & retail services | 9.5% | 9.5% |
| Public administration | 3.3% | 3.3% |
| Transportation, warehousing & utilities | 11.5% | 11.5% |
| Education, health & social services | 5.2% | 5.2% |
| Other | 24.7% | 24.7% |
| City | Population | Household Income | National Avg. |
| Montgomery, IN | 1,025 | $63,500 | 14.8% |
| Monroe City, IN | 1,027 | $57,917 | 4.7% |
| Francisco, IN | 541 | $54,231 | 2.0% |
| Somerville, IN | 354 | $47,083 | 14.9% |
| Winslow, IN | 900 | $46,683 | 15.6% |
| Petersburg, IN | 2,315 | $53,241 | 3.8% |
| City | Population | Household Income | National Avg. |
| Brighton, IL | 2,315 | $61,167 | 10.6% |
| Custer, SD | 2,314 | $57,300 | 3.6% |
| Mayer, MN | 2,313 | $100,958 | 82.5% |
| Brownsville, PA | 2,313 | $25,583 | 53.8% |
| Victor, ID | 2,317 | $54,512 | 1.5% |
| Petersburg, IN | 2,315 | $53,241 | 3.8% |
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