| Index | McMillin | Washington | National |
| Income per capita | $67,493 | $48,431 | $44,883 |
| Median household income | $126,591 | $91,816 | $81,333 |
| Median income owner occupied | $130,423 | $120,601 | $106,172 |
| Median income renter occupied | $98,865 | $60,275 | $52,080 |
| Median earnings male | $83,424 | $60,502 | $54,343 |
| Median earnings female | $51,159 | $39,812 | $38,439 |
| Unemployment rate | 1.1% | 4.5% | 4.9% |
| Poverty level | 9.2% | 12.7% | 15.1% |

| Labour Type | Male | Female |
| Construction industry | 0.0% | 0.0% |
| Manufacturing sector | 22.1% | 22.1% |
| Financial & insurance services | 0.0% | 0.0% |
| Wholesale & retail services | 24.9% | 24.9% |
| Public administration | 12.5% | 12.5% |
| Transportation, warehousing & utilities | 18.5% | 18.5% |
| Education, health & social services | 0.0% | 0.0% |
| Other | 19.6% | 19.6% |
| City | Population | Household Income | National Avg. |
| McKenna, WA | 644 | $215,656 | 165.2% |
| Lake Holm, WA | 3,461 | $179,730 | 121.0% |
| Dash Point, WA | 1,045 | $174,406 | 114.4% |
| Lake Tapps, WA | 12,497 | $172,625 | 112.2% |
| Fife Heights, WA | 1,977 | $172,085 | 111.6% |
| McMillin, WA | 1,283 | $126,591 | 55.6% |
| City | Population | Household Income | National Avg. |
| Kettleman City, CA | 1,283 | $82,335 | 1.2% |
| Onsted, MI | 1,283 | $81,506 | 0.2% |
| Belle, MO | 1,283 | $56,477 | 30.6% |
| Fivepointville, PA | 1,283 | $152,538 | 87.5% |
| Olmito, TX | 1,283 | $55,513 | 31.7% |
| McMillin, WA | 1,283 | $126,591 | 55.6% |