According to US Census Bureau, middle class is defined as families with income in middle three income quintiles. In 2010, income level for each quin tile is:
| Quin tile | Lowest Income | Share of US Household Income |
|---|---|---|
| 5th | $99,891 | 50.3% |
| 4th | $62,150 | 23.1% |
| 3rd | $39,211 | 14.6% |
| 2rd | $20,699 | 8.5% |
| 1rd | — | 3.3% |
If you household income was between $20,699 to $99,891, you belong to United States middle class.
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