World Population PyramidsPopulation pyramids and indicators by country and year日本語

Japan vs China: population pyramids in 2037

2037Swap

JapanChina

1%0.75%0.5%0.25%0%0.25%0.5%0.75%1%0102030405060708090100MaleFemale

Each bar is the share of the total population at that single year of age (men left, women right), so countries of different sizes can be compared.

Japan and China compared

In 2037, Japan has a population of 114.5 million and China 1.36 billion; China is about 12 times the size of Japan.

The share aged 65 and over is 33.3% in Japan and 24.1% in China, 9.2 points higher in Japan. The median age is 53.7 years in Japan and 47.7 years in China.

The total fertility rate is 1.30 in Japan and 1.11 in China, both below the replacement level of about 2.1. Life expectancy at birth is 86.7 years in Japan and 81.2 years in China.

By 2050, the population of Japan is projected to shrink by 8.3% and that of China to shrink by 7.3% compared with 2037.

GDP per person is $36K in Japan (2025) and $14K in China (2025).

Figures from 2024 are UN medium-variant projections.

Key figures (2037)

JapanChina
Population114.5 million1.36 billion
Aged 0–1410.1%9.3%
Aged 15–6456.5%66.5%
Aged 65+33.3%24.1%
Median age53.7 yrs47.7 yrs
Old-age dependency58.936.3
Total fertility rate1.301.11
Life expectancy86.7 yrs81.2 yrs
Population growth-0.65%-0.44%
Net migration (per year)+118,603-223,836
GDP$4.44T (2025)$19.5T (2025)
GDP per person$36K (2025)$14K (2025)
Unemployment2.5% (2025)4.6% (2025)

Economic figures are the latest year published for each country.

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