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

Japan vs United States of America: population pyramids in 2046

2046Swap

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 2046, Japan has a population of 107.9 million and the United States of America 376.5 million; the United States of America is about 3.5 times the size of Japan.

The share aged 65 and over is 36.7% in Japan and 22.5% in the United States of America, 14.2 points higher in Japan. The median age is 53.8 years in Japan and 42.2 years in the United States of America.

The total fertility rate is 1.33 in Japan and 1.64 in the United States of America, both below the replacement level of about 2.1. Life expectancy at birth is 87.9 years in Japan and 82.7 years in the United States of America.

By 2050, the population of Japan is projected to shrink by 2.7% and that of the United States of America to grow by 1.0% compared with 2046.

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

Figures from 2024 are UN medium-variant projections.

Key figures (2046)

JapanUnited States of America
Population107.9 million376.5 million
Aged 0–1411.0%16.0%
Aged 15–6452.2%61.5%
Aged 65+36.7%22.5%
Median age53.8 yrs42.2 yrs
Old-age dependency70.336.6
Total fertility rate1.331.64
Life expectancy87.9 yrs82.7 yrs
Population growth-0.65%+0.26%
Net migration (per year)+116,330+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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