Sociologists Dennis Gilbert, William Thompson and Joseph Hickey estimate the upper middle class to constitute roughly 15% of the population. Using the 15% figure one may conclude that the American upper middle class consists, strictly in an income sense, of professionals with personal incomes in excess of $62,500 ($83,000 in 2020 dollars), who commonly reside in households with six-figure incomes. The difference between personal and household income can be explained by considering that 76% of households with incomes exceeding $90,000 (the top 20%, $140,000 to cross this threshold in 2020 dollars) had two or more income earners. In 2020, the threshold for entering the top 15% of American household incomes is $166,000