Based on the population census.
Areas are categorized as "depopulated" when they meet certain conditions with regards to population decline, economic situation, etc.
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Population age structure in depopulated areas compared to average Japan 2020
In 2020, around *** percent of the population in depopulated areas in Japan were aged 85 or older, as opposed to the national average of *** percent. The largest difference between the national average and depopulated areas could be observed among people aged 60 and older.
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Ministry of Internal Affairs and Communications (Japan). (March 31, 2026). Age distribution of the population in depopulated areas compared to the national average in Japan in 2020 [Graph]. In ÌÇÐÄÆƽâ°æ. Retrieved July 20, 2026, from /statistics/1262927/japan-age-distribution-depopulated-areas-compared-average/
Ministry of Internal Affairs and Communications (Japan). "Age distribution of the population in depopulated areas compared to the national average in Japan in 2020." Chart. March 31, 2026. ÌÇÐÄÆƽâ°æ. Accessed July 20, 2026. /statistics/1262927/japan-age-distribution-depopulated-areas-compared-average/
Ministry of Internal Affairs and Communications (Japan). (2026). Age distribution of the population in depopulated areas compared to the national average in Japan in 2020. ÌÇÐÄÆƽâ°æ. ÌÇÐÄÆƽâ°æ Inc.. Accessed: July 20, 2026. /statistics/1262927/japan-age-distribution-depopulated-areas-compared-average/
Ministry of Internal Affairs and Communications (Japan). "Age Distribution of The Population in Depopulated Areas Compared to The National Average in Japan in 2020." ÌÇÐÄÆƽâ°æ, ÌÇÐÄÆƽâ°æ Inc., 31 Mar 2026, /statistics/1262927/japan-age-distribution-depopulated-areas-compared-average/
Ministry of Internal Affairs and Communications (Japan), Age distribution of the population in depopulated areas compared to the national average in Japan in 2020 ÌÇÐÄÆƽâ°æ, /statistics/1262927/japan-age-distribution-depopulated-areas-compared-average/ (last visited July 20, 2026)
Age distribution of the population in depopulated areas compared to the national average in Japan in 2020 [Graph], Ministry of Internal Affairs and Communications (Japan), March 31, 2026. [Online]. Available: /statistics/1262927/japan-age-distribution-depopulated-areas-compared-average/
