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

Japan vs Viet Nam: population pyramids in 2039

2039Swap

JapanViet Nam

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 Viet Nam compared

In 2039, Japan has a population of 113 million and Viet Nam 107.9 million; the two are about the same size.

The share aged 65 and over is 34.5% in Japan and 15.2% in Viet Nam, 19.3 points higher in Japan. The median age is 53.9 years in Japan and 38.9 years in Viet Nam.

The total fertility rate is 1.31 in Japan and 1.77 in Viet Nam, both below the replacement level of about 2.1. Life expectancy at birth is 87.0 years in Japan and 77.1 years in Viet Nam.

By 2050, the population of Japan is projected to shrink by 7.1% and that of Viet Nam to grow by 1.9% compared with 2039.

GDP per person is $36K in Japan (2025) and $5,066 in Viet Nam (2025).

Figures from 2024 are UN medium-variant projections.

Key figures (2039)

JapanViet Nam
Population113 million107.9 million
Aged 0–1410.3%17.7%
Aged 15–6455.2%67.1%
Aged 65+34.5%15.2%
Median age53.9 yrs38.9 yrs
Old-age dependency62.422.7
Total fertility rate1.311.77
Life expectancy87.0 yrs77.1 yrs
Population growth-0.65%+0.33%
Net migration (per year)+120,375-29,167
GDP$4.44T (2025)$515B (2025)
GDP per person$36K (2025)$5,066 (2025)
Unemployment2.5% (2025)1.5% (2025)

Economic figures are the latest year published for each country.

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