| Index | Petersburg | North Dakota | National |
| Income per capita | $26,908 | $33,107 | $29,829 |
| Median household income | $41,875 | $59,114 | $55,322 |
| Median income owner occupied | $44,688 | $76,410 | $70,586 |
| Median income renter occupied | $0 | $36,149 | $35,192 |
| Median earnings male | $40,000 | $41,306 | $36,919 |
| Median earnings female | $17,500 | $26,342 | $26,250 |
| Unemployment rate | 0.0% | 1.9% | 4.7% |
| Poverty level | 18.4% | 11.2% | 15.1% |


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| Labour Type | Male | Female |
| Construction industry | 10.4% | 10.4% |
| Manufacturing sector | 12.5% | 12.5% |
| Financial & insurance services | 6.3% | 6.3% |
| Wholesale & retail services | 4.2% | 4.2% |
| Public administration | 25.0% | 25.0% |
| Transportation, warehousing & utilities | 2.1% | 2.1% |
| Education, health & social services | 6.3% | 6.3% |
| Other | 29.2% | 29.2% |
| City | Population | Household Income | National Avg. |
| Niagara, ND | 32 | $70,625 | 27.7% |
| Michigan City, ND | 221 | $64,167 | 16.0% |
| Fordville, ND | 197 | $62,813 | 13.5% |
| Dahlen, ND | 11 | $0 | 100.0% |
| Petersburg, ND | 159 | $41,875 | 24.3% |
| City | Population | Household Income | National Avg. |
| Pyatt, AR | 159 | $44,750 | 19.1% |
| Ali Chuk, AZ | 159 | $0 | 100.0% |
| Big Creek, CA | 159 | $63,250 | 14.3% |
| Calumet, IA | 159 | $42,500 | 23.2% |
| Shambaugh, IA | 159 | $45,714 | 17.4% |
| Petersburg, ND | 159 | $41,875 | 24.3% |