Greater Tokyo’s population sees a net inflow for the 23rd year in a row

In 2018 the greater Tokyo region (Tokyo, Saitama, Chiba and Kanagawa prefectures) recorded the 23rd consecutive year of net population growth with a net inflow of 139,868 residents (135,600 of whom were Japanese citizens). This is a 16.8% increase from the net inflow seen in 2017 and the second year in a row to record an expansion in the growth rate. Over half of the net inflow were those aged between 20 and 24. 

The Tokyo metropolitan area saw a net inflow of 79,844 (82,774 if only Japanese citizens are counted), up 30.6% from 2017. 

A total of 8 of Japan’s 47 prefectures saw a net inflow in 2018. These prefectures were Tokyo, Saitama, Kanagawa, Chiba, Aichi, Fukuoka, Osaka and Shiga. The prefecture with the biggest net outflow was Ibaraki with 7,744. 

The Nagoya region (Aichi, Gifu and Mie prefectures) saw a net outflow of 7,376 persons, while the Osaka region (Osaka, Hyogo, Kyoto and Nara prefectures) saw a net outflow of 9,438 persons. Both regions recorded the 6th consecutive year of decline. 

Nagano Prefecture reported a net inflow for the second year in a row with 230 persons. This is due primarily to new hires of foreign workers in the region’s ski resort towns, particularly in Hakuba. Hakuba saw a 2.2% increase in population, putting it in top spot in the prefecture. Nagano Prefecture has 31,141 foreign residents as of 2018, up 8.9% from 2017. If foreign residents are not included in calculations, Nagano saw a net outflow of 3,603 persons in 2018.

Data: Statistics Bureau, Ministry of Internal Affairs and Communications, January 31, 2019.

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