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

United States of America vs Japan: population pyramids in 2010

2010Swap

United States of AmericaJapan

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.

United States of America and Japan compared

In 2010, the United States of America has a population of 309.5 million and Japan 128.1 million; the United States of America is about 2.4 times the size of Japan.

The share aged 65 and over is 12.7% in the United States of America and 22.9% in Japan, 10.2 points higher in Japan. The median age is 36.9 years in the United States of America and 45.0 years in Japan.

The total fertility rate is 1.92 in the United States of America and 1.36 in Japan, both below the replacement level of about 2.1. Life expectancy at birth is 78.7 years in the United States of America and 82.9 years in Japan.

By 2050, the population of the United States of America is projected to grow by 22.8% and that of Japan to shrink by 18.0% compared with 2010.

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

Key figures (2010)

United States of AmericaJapan
Population309.5 million128.1 million
Aged 0–1419.8%13.4%
Aged 15–6467.5%63.7%
Aged 65+12.7%22.9%
Median age36.9 yrs45.0 yrs
Old-age dependency18.936.0
Total fertility rate1.921.36
Life expectancy78.7 yrs82.9 yrs
Population growth+0.99%-0.03%
Net migration (per year)+1.6 million+131,860
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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