Currently, the median age ranges from a low of about 15 in Niger to 40 or more in several European countries, Canada and Japan. The median age for women tends to be much greater than that of men in some of the ex-Soviet republics , while in the Global South the difference is far smaller or is reversed.
This statistic shows the median age of the population in Japan from 1950 to 2050*. The median age of a population is an index that divides the population into two equal groups: half of the population is older than the median age and the other half younger. In 2015, the median age of Japan's population was 46.3 years.
Currently, the median age ranges from a low of about 15 in Uganda and Gaza Strip to 40 or more in several European countries and Japan. See the entry for "Age structure" for the importance of a young versus an older age structure and, by implication, a low versus a higher median age.
Japan ranks number 11 in the list of countries (and dependencies) by population. The population density in Japan is 349 per Km 2 (904 people per mi 2). The total land area is 364,555 Km2 (140,755 sq. miles) 93.8 % of the population is urban (119,327,813 people in 2018) The median age in Japan is 46.7 years.
The median age is the age that divides a population into two numerically equal groups; that is, half the people are younger than this age and half are older. It is a single index that summarizes the age distribution of a population.
The median age of a population is the point at which half the population is older than that age and half is younger. In the last 50 years, the median age of the world's population has increased by just three years, from 23.6 in 1950 to 26.4 in 2000.
In 2016, the average annual salary in Japan was ¥4,420,000 ($39,000). What is the average salary in Japan by age? As can be expected, average annual salary increases by age group, but there is a significant gender gap across age groups.