Population of Tokyo to drop to half by 2100 | The Japan Times OnlineTuesday, Sep. 4, 2012 46% will be seniors, group says Population of Tokyo to drop to half by 2100 Kyodo 2100 will see Tokyo's population standing at around 7.13 million — about half of what it is today — with 45.9 percent of those in the metropolis aged 65 or over, a group of academics and bureaucrats has concluded. Tokyo's population, which stood at 13.16 million in 2010, will peak at 13.35 mill
