Income data from the 2015 US census reveals some insight. 39% of all households had two or more income earners resulting in 25% of households having a combined income above $100k. Meanwhile, only 9% of US workers (population age 15 or older) have individual incomes over $100k. These high earners are typically associated with high education levels as half of all people with graduate degrees are also among the top 15% of income earners (individual incomes greater than $75k).
In 2015, US median personal income was $30k and the mean personal income was $44k. For the US population aged 15 and above, 43% make less than $25k, 70% make less than $50k, 84% make less than $75k, and 91% make less than $100k. Similar data is displayed in the bar chart above – one chart shows the distribution for ages 25 through 64 and the other for ages 25 and above.