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

Japan vs Viet Nam: population pyramids in 2012

2012Swap

JapanViet Nam

1.5%1%0.5%0%0.5%1%1.5%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 2012, Japan has a population of 128 million and Viet Nam 89 million; Japan is about 1.4 times the size of Viet Nam.

The share aged 65 and over is 24.0% in Japan and 6.1% in Viet Nam, 18.0 points higher in Japan. The median age is 45.7 years in Japan and 28.8 years in Viet Nam.

The total fertility rate is 1.38 in Japan and 1.97 in Viet Nam, both below the replacement level of about 2.1. Life expectancy at birth is 83.2 years in Japan and 73.8 years in Viet Nam.

By 2050, the population of Japan is projected to shrink by 17.9% and that of Viet Nam to grow by 23.6% compared with 2012.

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

Key figures (2012)

JapanViet Nam
Population128 million89 million
Aged 0–1413.3%24.1%
Aged 15–6462.7%69.9%
Aged 65+24.0%6.1%
Median age45.7 yrs28.8 yrs
Old-age dependency38.38.7
Total fertility rate1.381.97
Life expectancy83.2 yrs73.8 yrs
Population growth-0.15%+1.18%
Net migration (per year)+67,904-4,851
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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