Tokyo - Megacity
Population of Tokyo
Tokyo has a population of 13.4 million people in the metropolis. The greater Tokyo metropolitan area, which is spread over 3 areas has a population of about 37 million people, making Tokyo the biggest city in the world. Japan is the tenth largest populated city in the world with a total population of 127.6 million people. This means that Tokyo is home to 25% of Japan’s total population.

Source: Google
Population of Japan
Life expectancy of Japan

Source: Google
Life expectancy
Life expectancy is the period of time that a person may expect to live. This number is based on a statistical average, with variables such as the place where you live, your occupation, nutrition and gender. The life expectancy of Japan is 83.1 years. Japan has the highest life expectancy for women in the world, and the fourth highest life expectancy for men. The life expectancy in Tokyo is 83.1 years, the exact same life expectancy as the whole of Japan. This may be because Tokyo makes up a large percentage of Japan’s population.