Born in 2021: your generation in Japan
- Age in 2026
- 5
- People this age
- 847,411
- Rank among 101 ages
- #82
- Turns 65 in
- 2086
- Workers per retiree in 2086
- 1.4
The 2026 population pyramid of Japan; the highlighted row is the 2021 cohort.
This generation, then and now
People born in 2021 in Japan are 5 years old in 2026. There are about 847,411 of them, the 82nd most numerous single year of age out of 101.
The cohort started at about 808,854 (children aged 0 at the beginning of 2022). Babies born around 2026 number about 750,581, 93% of that.
This cohort turns 65 in 2086. Japan is then projected to have 81.6 million people, 37.2% of them aged 65 or over, with 1.4 people of working age (15–64) per person aged 65+, compared with 2.0 in 2026.
Following the cohort over time, it is projected to number about 882,045 in 2100 (age 79), from 840,070 at the start; deaths and migration change the count each year.
Figures from 2024 are UN medium-variant projections.
How the cohort changes over time
People of this cohort each year from birth to age 100. In countries with much immigration the cohort can grow for a while.