Statistical Abstract of the United States
This is the fundamental starting point for any research involving U.S. statistics. Although the U.S. government stopped producing it with the 2012 issue, the Statistical Abstract still provides provides tables of statistics for most areas of American business, society, education, family life, employment, and other aspects. Most importantly, tables will always list the sources for their data. This will lead you to the most detailed and up-to-date source for your statistical topic.