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United States of America vs Japan: population pyramids in 2084

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United States of AmericaJapan

0.8%0.6%0.4%0.2%0%0.2%0.4%0.6%0.8%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.

United States of America and Japan compared

In 2084, the United States of America has a population of 409.2 million and Japan 82.5 million; the United States of America is about 5.0 times the size of Japan.

The share aged 65 and over is 27.5% in the United States of America and 37.2% in Japan, 9.7 points higher in Japan. The median age is 45.3 years in the United States of America and 53.0 years in Japan.

The total fertility rate is 1.64 in the United States of America and 1.45 in Japan, both below the replacement level of about 2.1. Life expectancy at birth is 87.4 years in the United States of America and 92.5 years in Japan.

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

Figures from 2024 are UN medium-variant projections.

Key figures (2084)

United States of AmericaJapan
Population409.2 million82.5 million
Aged 0–1414.8%11.9%
Aged 15–6457.6%50.8%
Aged 65+27.5%37.2%
Median age45.3 yrs53.0 yrs
Old-age dependency47.773.2
Total fertility rate1.641.45
Life expectancy87.4 yrs92.5 yrs
Population growth+0.18%-0.50%
Net migration (per year)+1.3 million+87,615
GDP$30.8T (2025)$4.44T (2025)
GDP per person$90K (2025)$36K (2025)
Unemployment4.2% (2025)2.5% (2025)

Economic figures are the latest year published for each country.

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