Born in 2003: your generation in Japan
- Age in 2026
- 23
- People this age
- 1.3 million
- Rank among 101 ages
- #47
- Turns 65 in
- 2068
- Workers per retiree in 2068
- 1.4
The 2026 population pyramid of Japan; the highlighted row is the 2003 cohort.
This generation, then and now
People born in 2003 in Japan are 23 years old in 2026. There are about 1.3 million of them, the 47th most numerous single year of age out of 101.
The cohort started at about 1.1 million (children aged 0 at the beginning of 2004). Babies born around 2026 number about 750,581, 66% of that.
This cohort turns 65 in 2068. Japan is then projected to have 91.9 million people, 36.5% 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 438,902 in 2100 (age 97), 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.