In 2021, the average number of individuals under the age of 18 per household in Japan stood at around **** persons. The rate has continuously decreased over the past decade from an average of about **** persons in 2012.
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e-Stat (Japan). (August 5, 2022). Average number of persons under the age of 18 per household in Japan from 2012 to 2021 [Graph]. In ÌÇÐÄÆÆ½â°æ. Retrieved July 31, 2026, from /statistics/1171473/japan-average-number-of-persons-under-18-years-per-household/
e-Stat (Japan). "Average number of persons under the age of 18 per household in Japan from 2012 to 2021." Chart. August 5, 2022. ÌÇÐÄÆÆ½â°æ. Accessed July 31, 2026. /statistics/1171473/japan-average-number-of-persons-under-18-years-per-household/
e-Stat (Japan). (2022). Average number of persons under the age of 18 per household in Japan from 2012 to 2021. ÌÇÐÄÆÆ½â°æ. ÌÇÐÄÆÆ½â°æ Inc.. Accessed: July 31, 2026. /statistics/1171473/japan-average-number-of-persons-under-18-years-per-household/
e-Stat (Japan). "Average Number of Persons under The Age of 18 per Household in Japan from 2012 to 2021." ÌÇÐÄÆÆ½â°æ, ÌÇÐÄÆÆ½â°æ Inc., 5 Aug 2022, /statistics/1171473/japan-average-number-of-persons-under-18-years-per-household/
e-Stat (Japan), Average number of persons under the age of 18 per household in Japan from 2012 to 2021 ÌÇÐÄÆÆ½â°æ, /statistics/1171473/japan-average-number-of-persons-under-18-years-per-household/ (last visited July 31, 2026)
Average number of persons under the age of 18 per household in Japan from 2012 to 2021 [Graph], e-Stat (Japan), August 5, 2022. [Online]. Available: /statistics/1171473/japan-average-number-of-persons-under-18-years-per-household/