| Index | Petersburg | North Dakota | National |
| Income per capita | $40,296 | $49,864 | $44,883 |
| Median household income | $62,906 | $89,503 | $81,333 |
| Median income owner occupied | $66,116 | $111,897 | $106,172 |
| Median income renter occupied | $0 | $53,273 | $52,080 |
| Median earnings male | $57,882 | $60,637 | $54,343 |
| Median earnings female | $25,380 | $38,077 | $38,439 |
| Unemployment rate | 0.0% | 2.0% | 4.9% |
| Poverty level | 18.4% | 11.2% | 15.1% |

| 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 | 33 | $104,636 | 28.7% |
| Michigan City, ND | 226 | $97,111 | 19.4% |
| Fordville, ND | 205 | $92,025 | 13.1% |
| Dahlen, ND | 11 | $0 | 100.0% |
| Petersburg, ND | 165 | $62,906 | 22.7% |
| City | Population | Household Income | National Avg. |
| Pyatt, AR | 165 | $66,581 | 18.1% |
| Flournoy, CA | 165 | $86,024 | 5.8% |
| Peck, ID | 165 | $70,834 | 12.9% |
| Modoc, IN | 165 | $55,508 | 31.8% |
| Mount Lebanon, LA | 165 | $40,078 | 50.7% |
| Petersburg, ND | 165 | $62,906 | 22.7% |