Born in 2025: your generation in Japan
- Age in 2026
- 1
- People this age
- 756,121
- Rank among 101 ages
- #86
- Turns 65 in
- 2090
- Workers per retiree in 2090
- 1.4
The 2026 population pyramid of Japan; the highlighted row is the 2025 cohort.
This generation, then and now
People born in 2025 in Japan are 1 years old in 2026. There are about 756,121 of them, the 86th most numerous single year of age out of 101.
The cohort started at about 750,581 (children aged 0 at the beginning of 2026). Babies born around 2026 number about 750,581, 1.0 times of that.
This cohort turns 65 in 2090. Japan is then projected to have 80.1 million people, 37.1% 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 824,471 in 2100 (age 75), from 753,270 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.