The richest president in U.S. history is incumbent President Donald Trump, who is the first billionaire president. The exact extent of Trump's net worth, however, is unknown, due to the Trump Organization being privately-held and Trump not being willing to disclose his tax returns.
Many of these early presidents were landowners, and some of them owned plantations, including their own slaves. Presidents since 1929 (when Herbert Hoover took office) have generally been wealthier than before; all except Harry Truman were millionaires.
List of presidents by net worth. The figures in the table below are all from 24/7 Wall St.'s 2016 valuation of each president's peak net worth, which can be after they left office. To allow direct comparison, all of the figures have been adjusted for inflation to 2016 dollars.