| Index | Selfridge | North Dakota | National |
| Income per capita | $31,724 | $33,107 | $29,829 |
| Median household income | $0 | $59,114 | $55,322 |
| Median income owner occupied | $0 | $76,410 | $70,586 |
| Median income renter occupied | $40,625 | $36,149 | $35,192 |
| Median earnings male | $80,240 | $41,306 | $36,919 |
| Median earnings female | $36,446 | $26,342 | $26,250 |
| Unemployment rate | 1.4% | 1.9% | 4.7% |
| Poverty level | 18.8% | 11.2% | 15.1% |
| Labour Type | Male | Female |
| Construction industry | 17.0% | 17.0% |
| Manufacturing sector | 3.8% | 3.8% |
| Financial & insurance services | 0.0% | 0.0% |
| Wholesale & retail services | 3.8% | 3.8% |
| Public administration | 7.5% | 7.5% |
| Transportation, warehousing & utilities | 0.0% | 0.0% |
| Education, health & social services | 58.5% | 58.5% |
| Other | 9.4% | 9.4% |
| City | Population | Household Income | National Avg. |
| Fort Yates, ND | 237 | $44,063 | 20.4% |
| Porcupine, ND | 162 | $41,534 | 24.9% |
| Selfridge, ND | 309 | $0 | 100.0% |
| City | Population | Household Income | National Avg. |
| Dillon Beach, CA | 309 | $171,477 | 210.0% |
| Esto, FL | 309 | $38,750 | 30.0% |
| Martelle, IA | 309 | $75,000 | 35.6% |
| Bancroft, ID | 309 | $57,917 | 4.7% |
| Hollister, ID | 309 | $41,250 | 25.4% |
| Selfridge, ND | 309 | $0 | 100.0% |
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