| Index | Marietta | Minnesota | National |
| Income per capita | $26,639 | $49,588 | $44,883 |
| Median household income | $34,897 | $92,370 | $81,333 |
| Median income owner occupied | $33,801 | $117,544 | $106,172 |
| Median income renter occupied | $48,727 | $52,026 | $52,080 |
| Median earnings male | $0 | $60,747 | $54,343 |
| Median earnings female | $0 | $42,223 | $38,439 |
| Unemployment rate | 0.0% | 3.6% | 4.9% |
| Poverty level | 34.1% | 10.8% | 15.1% |

| Labour Type | Male | Female |
| Construction industry | 32.3% | 32.3% |
| Manufacturing sector | 0.0% | 0.0% |
| Financial & insurance services | 0.0% | 0.0% |
| Wholesale & retail services | 32.3% | 32.3% |
| Public administration | 0.0% | 0.0% |
| Transportation, warehousing & utilities | 12.9% | 12.9% |
| Education, health & social services | 0.0% | 0.0% |
| Other | 22.6% | 22.6% |
| City | Population | Household Income | National Avg. |
| Nassau, MN | 69 | $110,051 | 35.3% |
| Milbank, SD | 3,218 | $87,306 | 7.3% |
| La Bolt, SD | 103 | $87,063 | 7.0% |
| Altamont, SD | 32 | $77,422 | 4.8% |
| Bellingham, MN | 276 | $75,523 | 7.1% |
| Marietta, MN | 170 | $34,897 | 57.1% |
| City | Population | Household Income | National Avg. |
| Akhiok, AK | 170 | $97,074 | 19.4% |
| Wawona, CA | 170 | $0 | 100.0% |
| Crook, CO | 170 | $64,646 | 20.5% |
| Ramah, CO | 170 | $79,997 | 1.6% |
| Hartly, DE | 170 | $185,756 | 128.4% |
| Marietta, MN | 170 | $34,897 | 57.1% |