In 2021, an estimated 3,224,000 millionaires lived in Japan, the third-highest amount after the US and China. At that time, 3.2% of the adult population held millionaire status, and 5% of the world’s wealthiest people resided in the Asian nation.
Fast-forward to 2022, the latest full year for which data is available, and the situation looked a little different. Now home to 2,757,000 millionaires, a drop of over 608,000, Japan has been overtaken by France, falling to fourth in the chart for the overall number of millionaires. Today, just 2.6% of the country's adult population are millionaires, with slow economic growth and a shrinking population posited as reasons behind the slump.