This report presents data on income, earnings, income inequality, and poverty in the United States based on information collected in the 2015 and earlier Current Population Survey Annual Social and Economic Supplements (CPS ASEC) conducted by the U.S. Census Bureau. The 2015 CPS ASEC data on income and poverty are based on a redesigned questionnaire aimed at improving income reporting, increasing response rates, reducing reporting errors by taking better advantage of an automated questionnaire environment, and updating questions on retirement income and the income generated from retirement accounts and other assets. The 2013 income and poverty estimates used in this report are based on the 2014 CPS ASEC sample of 30,000 addresses that also received the redesigned questionnaire for income. These 2013 estimates differ from those released in September 2014. See Text Box 1 and Appendix D of the report, “Income and Poverty in the United States: 2014,” P60-252, for more information.