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# Current Population Estimates as of October 1, 2017

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## Population Pyramid

## Summary of Results - Current Population Estimates as of October 1, 2017

### Population for Japan

**[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.

**[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 by Prefecture

**[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.

**[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.