Born in 2001: your generation in Japan
- Age in 2026
- 25
- People this age
- 1.3 million
- Rank among 101 ages
- #45
- Turns 65 in
- 2066
- Workers per retiree in 2066
- 1.4
The 2026 population pyramid of Japan; the highlighted row is the 2001 cohort.
This generation, then and now
People born in 2001 in Japan are 25 years old in 2026. There are about 1.3 million of them, the 45th most numerous single year of age out of 101.
The cohort started at about 1.2 million (children aged 0 at the beginning of 2002). Babies born around 2026 number about 750,581, 64% of that.
This cohort turns 65 in 2066. Japan is then projected to have 93.4 million people, 36.6% 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 299,774 in 2100 (age 99), from 1.2 million 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.