The 400 highest-earning U.S. households reported an average of $345 million in income in 2007, up 31 percent from a year earlier. If this keeps going the USA will resemble Mexico, either your rich or your poor. Canada will have a border problem Top 400 Earners in U.S Averaged $345 Million in 2007, IRS Says - Yahoo! News The figures for 2007, the last year of an economic expansion, show that the average income reported by the top 400 earners more than doubled from $131.1 million in 2001. That year, Congress adopted tax cuts urged by then-President George W. Bush that Democrats say disproportionately benefits the wealthy.