The American upper class is a social group within the United States consisting of people who have the highest social rank, due to economic wealth, lineage, and typically educational attainment.[2][3] The American upper class is estimated to be the richest 1% of the population.
The American upper class is distinguished from the rest of the population due to the fact that its primary source of income consists of assets, investments, and capital gains rather than wages and salaries. Its members include owners of large private companies, heirs to fortunes, and top executives of certain publicly traded corporations (more importantly, critically vital large scale companies and corporations).