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

Japan vs Viet Nam: population pyramids in 1974

1974Swap

JapanViet Nam

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.

Japan and Viet Nam compared

In 1974, Japan has a population of 111.3 million and Viet Nam 44.9 million; Japan is about 2.5 times the size of Viet Nam.

The share aged 65 and over is 7.7% in Japan and 5.2% in Viet Nam, 2.4 points higher in Japan. The median age is 30.3 years in Japan and 18.4 years in Viet Nam.

The total fertility rate is 2.07 in Japan and 5.78 in Viet Nam, so only Japan is below the replacement level of about 2.1. Life expectancy at birth is 73.8 years in Japan and 54.8 years in Viet Nam.

By 2050, the population of Japan is projected to shrink by 5.6% and that of Viet Nam to grow by 144.8% compared with 1974.

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

Key figures (1974)

JapanViet Nam
Population111.3 million44.9 million
Aged 0–1423.7%41.9%
Aged 15–6468.7%52.8%
Aged 65+7.7%5.2%
Median age30.3 yrs18.4 yrs
Old-age dependency11.29.9
Total fertility rate2.075.78
Life expectancy73.8 yrs54.8 yrs
Population growth+1.23%+2.13%
Net migration (per year)-10,145-34,940
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.

Compare other years