In terms of median income (which might arguably be better suited for this particular question than average income), the U.S. is on fourth position with Luxembourg, Switzerland and Norway occupying higher ranks. Germany is only about 3,000 USD behind the U.S. in that measure: https://worldpopulationreview.com/country-rankings/median-in...

In terms of median wealth, half the E.U. scores better than the U.S.: https://en.wikipedia.org/wiki/List_of_countries_by_wealth_pe...