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Current Population Estimates as of October 1, 2017

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Population Pyramid

[Total Population]

The total population was 126,706 thousand, a decrease of 227 thousand compared with the previous year. The rate of decrease was 0.18 percent. The total population decreased for the seventh year in a row.
The male population was 61,655 thousand, a decrease of 110 thousand (0.18 percent), while the female population was 65,051 thousand, a decrease of 116 thousand (0.18 percent).
The natural change of the male population was negative for thirteenth year in a row, and that of the female population was negative for ninth year in a row.
The migration change of the Japanese population was positive for the first time in seven years, and that of the foreign population was positive for five consecutive years.

Table 1 Composition of Population (as of October 1, 2017)

Figure 1 Number and Rate of Population change

[Population by Age Group]

The population under 15 years old was 15,592 thousand (12.3 percent of the total population).
The population aged 15 to 64 was 75,962 thousand (60.0 percent of the total population).
The population aged 65 years old and over was 35,152 thousand (27.7 percent of the total population).

[Population]

The top five prefectures in population were Tokyo-to, Kanagawa-ken, Osaka-fu, Aichi-ken and Saitama-ken. These prefectures account for 36.7 percent of the total population.
Tokyo-to had the largest population in 2017 (10.8 percent of the total population).

[Rates of Population Change]

The population increased in 7 prefectures. Tokyo-to had the highest rate of increase in population.
The population decreased in 40 prefectures. Akita-ken had the highest rate of decrease in population.

Table 2 Population for Prefectures/Table 3 Rates of Population Change for Prefectures

Figure 3 Rates of Population Change

[Population by Age Group]

The percentage of the population under 15 years old was the highest in Okinawa-ken and lowest in Akita-ken.
The percentage of the population aged 15 to 64 was the highest in Tokyo-to and lowest in Shimane-ken.
The percentage of the population aged 65 years old and over was the highest in Akita-ken and lowest in Okinawa-ken, and it increased in all prefectures.

Reference Table Percentage of Population by Age (3 Groups) for Prefectures