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

Japan vs United States of America: population pyramids in 1991

1991Swap

JapanUnited States of America

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 United States of America compared

In 1991, Japan has a population of 123.6 million and the United States of America 254.9 million; the United States of America is about 2.1 times the size of Japan.

The share aged 65 and over is 12.4% in Japan and 12.3% in the United States of America, almost the same. The median age is 38.1 years in Japan and 33.0 years in the United States of America.

The total fertility rate is 1.50 in Japan and 2.06 in the United States of America, both below the replacement level of about 2.1. Life expectancy at birth is 79.3 years in Japan and 75.5 years in the United States of America.

By 2050, the population of Japan is projected to shrink by 15.0% and that of the United States of America to grow by 49.2% compared with 1991.

GDP per person is $36K in Japan (2025) and $90K in the United States of America (2025).

Key figures (1991)

JapanUnited States of America
Population123.6 million254.9 million
Aged 0–1417.7%21.6%
Aged 15–6469.9%66.0%
Aged 65+12.4%12.3%
Median age38.1 yrs33.0 yrs
Old-age dependency17.718.7
Total fertility rate1.502.06
Life expectancy79.3 yrs75.5 yrs
Population growth+0.41%+1.22%
Net migration (per year)+161,331+1.2 million
GDP$4.44T (2025)$30.8T (2025)
GDP per person$36K (2025)$90K (2025)
Unemployment2.5% (2025)4.2% (2025)

Economic figures are the latest year published for each country.

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