| Index | Milltown | South Dakota | National |
| Income per capita | $33,044 | $41,166 | $44,883 |
| Median household income | $0 | $77,914 | $81,333 |
| Median income owner occupied | $0 | $100,475 | $106,172 |
| Median income renter occupied | $0 | $45,187 | $52,080 |
| Median earnings male | $0 | $52,540 | $54,343 |
| Median earnings female | $0 | $36,073 | $38,439 |
| Unemployment rate | 0.0% | 2.9% | 4.9% |
| Poverty level | 0.0% | 14.0% | 15.1% |

| Labour Type | Male | Female |
| Construction industry | 0.0% | 0.0% |
| Manufacturing sector | 0.0% | 0.0% |
| Financial & insurance services | 0.0% | 0.0% |
| Wholesale & retail services | 0.0% | 0.0% |
| Public administration | 100.0% | 100.0% |
| Transportation, warehousing & utilities | 0.0% | 0.0% |
| Education, health & social services | 0.0% | 0.0% |
| Other | 0.0% | 0.0% |
| City | Population | Household Income | National Avg. |
| Dimock, SD | 147 | $101,368 | 24.6% |
| Parkston, SD | 1,821 | $95,478 | 17.4% |
| Emery, SD | 520 | $92,594 | 13.8% |
| Ethan, SD | 341 | $85,614 | 5.3% |
| Tripp, SD | 593 | $77,892 | 4.2% |
| Milltown, SD | 26 | $0 | 100.0% |
| City | Population | Household Income | National Avg. |
| Mendeltna, AK | 26 | $0 | 100.0% |
| Beyerville, AZ | 26 | $0 | 100.0% |
| Butte Meadows, CA | 26 | $0 | 100.0% |
| Lazy Lake, FL | 26 | $378,821 | 365.8% |
| Blanchard, IA | 26 | $61,345 | 24.6% |
| Milltown, SD | 26 | $0 | 100.0% |