| Index | Marble | Minnesota | National |
| Income per capita | $32,280 | $49,588 | $44,883 |
| Median household income | $51,635 | $92,370 | $81,333 |
| Median income owner occupied | $51,469 | $117,544 | $106,172 |
| Median income renter occupied | $0 | $52,026 | $52,080 |
| Median earnings male | $36,925 | $60,747 | $54,343 |
| Median earnings female | $40,039 | $42,223 | $38,439 |
| Unemployment rate | 5.8% | 3.6% | 4.9% |
| Poverty level | 23.2% | 10.8% | 15.1% |

| Labour Type | Male | Female |
| Construction industry | 10.2% | 10.2% |
| Manufacturing sector | 17.6% | 17.6% |
| Financial & insurance services | 4.6% | 4.6% |
| Wholesale & retail services | 17.6% | 17.6% |
| Public administration | 3.7% | 3.7% |
| Transportation, warehousing & utilities | 4.6% | 4.6% |
| Education, health & social services | 10.2% | 10.2% |
| Other | 20.4% | 20.4% |
| City | Population | Household Income | National Avg. |
| La Prairie, MN | 751 | $97,141 | 19.4% |
| Taconite, MN | 770 | $87,775 | 7.9% |
| Bovey, MN | 741 | $79,966 | 1.7% |
| Nashwauk, MN | 1,139 | $76,498 | 5.9% |
| Calumet, MN | 350 | $74,584 | 8.3% |
| Marble, MN | 553 | $51,635 | 36.5% |
| City | Population | Household Income | National Avg. |
| Friant, CA | 553 | $78,786 | 3.1% |
| Conesville, IA | 553 | $58,087 | 28.6% |
| Creston, IL | 553 | $113,710 | 39.8% |
| Mark, IL | 553 | $106,544 | 31.0% |
| Lynch, KY | 553 | $58,016 | 28.7% |
| Marble, MN | 553 | $51,635 | 36.5% |