Total Population Of Tokyo 2024. The prefecture has grown into one of the world’s megacities and is home to around 13.5 million people, making up over 10 percent of the nation’s total population. The country has over 125 million people living within its borders.

[total population] the total population was 124,947 thousand, a decrease of 556 thousand compared with the previous year. In total, japan covers just over 378,000 square kilometers.