OECD Report Finds Rising Income Inequality With U.S. Among Worst | AHN | October 22, 2008 between the haves and the have nots. Only two of 30 nations, Mexico and Turkey, are ahead of the United States for income inequality and poverty rates, or the gap between rich and poor, according to a report released Tuesday. The report was released by Paris-based Organization for Economic Cooperation and Development of its 30 member-nations, most of which are developed countries. In America, the average income of the richest 10 percent of people is $93,000. When compared to purchasing power parity, it is the highest in the OECD when compared with the average of $54,000 for OECD nations. The poorest 10 percent of Americans have an income of $5,800 per year, compared to the OECD average of $7,000. In addition, the richest 10 percent hold 71 percent of American's net worth and 28 percent of total income, leaving 90 percent of the population to split the remaining 72 percent of the nation's income.