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

Viet Nam vs Japan: population pyramids in 1971

1971Swap

Viet NamJapan

2%1.5%1%0.5%0%0.5%1%1.5%2%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.

Viet Nam and Japan compared

In 1971, Viet Nam has a population of 41.9 million and Japan 107.3 million; Japan is about 2.6 times the size of Viet Nam.

The share aged 65 and over is 5.3% in Viet Nam and 7.1% in Japan, 1.8 points higher in Japan. The median age is 18.2 years in Viet Nam and 29.4 years in Japan.

The total fertility rate is 6.07 in Viet Nam and 2.09 in Japan, so only Japan is below the replacement level of about 2.1. Life expectancy at birth is 55.6 years in Viet Nam and 72.8 years in Japan.

By 2050, the population of Viet Nam is projected to grow by 162.3% and that of Japan to shrink by 2.1% compared with 1971.

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

Key figures (1971)

Viet NamJapan
Population41.9 million107.3 million
Aged 0–1442.8%23.2%
Aged 15–6451.8%69.7%
Aged 65+5.3%7.1%
Median age18.2 yrs29.4 yrs
Old-age dependency10.310.2
Total fertility rate6.072.09
Life expectancy55.6 yrs72.8 yrs
Population growth+2.45%+1.15%
Net migration (per year)+76,961-107,778
GDP$515B (2025)$4.44T (2025)
GDP per person$5,066 (2025)$36K (2025)
Unemployment1.5% (2025)2.5% (2025)

Economic figures are the latest year published for each country.

Compare other years