| Index | Milbank | South Dakota | National |
| Income per capita | $50,414 | $41,166 | $44,883 |
| Median household income | $87,306 | $77,914 | $81,333 |
| Median income owner occupied | $106,289 | $100,475 | $106,172 |
| Median income renter occupied | $34,787 | $45,187 | $52,080 |
| Median earnings male | $49,772 | $52,540 | $54,343 |
| Median earnings female | $45,696 | $36,073 | $38,439 |
| Unemployment rate | 2.7% | 2.9% | 4.9% |
| Poverty level | 7.8% | 14.0% | 15.1% |

| Labour Type | Male | Female |
| Construction industry | 7.5% | 7.5% |
| Manufacturing sector | 20.3% | 20.3% |
| Financial & insurance services | 7.4% | 7.4% |
| Wholesale & retail services | 12.9% | 12.9% |
| Public administration | 2.9% | 2.9% |
| Transportation, warehousing & utilities | 15.5% | 15.5% |
| Education, health & social services | 26.2% | 26.2% |
| Other | 7.3% | 7.3% |
| City | Population | Household Income | National Avg. |
| Nassau, MN | 69 | $110,051 | 35.3% |
| Corona, SD | 46 | $98,149 | 20.7% |
| Odessa, MN | 94 | $87,721 | 7.9% |
| La Bolt, SD | 103 | $87,063 | 7.0% |
| Big Stone City, SD | 681 | $84,429 | 3.8% |
| Milbank, SD | 3,218 | $87,306 | 7.3% |
| City | Population | Household Income | National Avg. |
| Pine City, MN | 3,218 | $61,614 | 24.2% |
| San Antonio Heights, CA | 3,217 | $138,565 | 70.4% |
| Salmon, ID | 3,217 | $52,836 | 35.0% |
| Mamou, LA | 3,217 | $30,403 | 62.6% |
| Checotah, OK | 3,219 | $46,027 | 43.4% |
| Milbank, SD | 3,218 | $87,306 | 7.3% |