Japan vs Taiwan: Average age of mothers at childbirth by birth order
Japan
30.71 years
in 2023
Taiwan
31.03 years
in 2023
Japan rank
7th
Taiwan rank
5th
Average age of mothers at childbirth by birth order over time
- Japan
- Taiwan
How they compare
Taiwan currently reports 31.03 years against 30.71 years in Japan, a difference of 0.32 years.
The two have swapped places 1 time across 48 shared years of data; in 1976 it was Japan ahead.
Japan ranks 7th and Taiwan ranks 5th of 33 countries.
Across the 6 decades both report, Japan averaged higher in 4 and Taiwan in 2.
Head to head by decade
| Decade | Japan | Taiwan | Difference | Ahead |
|---|---|---|---|---|
| 1970s | 25.91 years | 23.73 years | 2.18 years | Japan |
| 1980s | 26.5 years | 24.6 years | 1.9 years | Japan |
| 1990s | 27.64 years | 25.96 years | 1.68 years | Japan |
| 2000s | 28.53 years | 27.7 years | 0.829 years | Japan |
| 2010s | 29.84 years | 30 years | 0.157 years | Taiwan |
| 2020s | 30.52 years | 30.84 years | 0.315 years | Taiwan |
Averages of every year both report within each decade.
Frequently asked questions
- Which has higher average age of mothers at childbirth by birth order, Japan or Taiwan?
- Taiwan, at 31.03 years against 30.71 years in Japan as of 2023.
- What is the difference in average age of mothers at childbirth by birth order between Japan and Taiwan?
- 0.32 years, with Taiwan ahead.
- How many years of comparable data are there for Japan and Taiwan?
- 48 years are reported by both, from 1976 to 2023.
- How do Japan and Taiwan rank globally for average age of mothers at childbirth by birth order?
- Japan ranks 7th and Taiwan ranks 5th of 33 countries.
- Where does this data come from?
- Human Fertility Database (2025) – processed by Our World in Data, published as Average age of mothers at childbirth by birth order. Statizoid refreshes it automatically from the source and publishes the full history for both places.
Individual pages
About this data
Average age of mothers when they have their first child in a specific year. It is standardized for the age structure of the female population of reproductive age.