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

United States of America vs Japan: population pyramids in 2027

2027Swap

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 2027, the United States of America has a population of 349.8 million and Japan 122 million; the United States of America is about 2.9 times the size of Japan.

The share aged 65 and over is 19.0% in the United States of America and 30.2% in Japan, 11.2 points higher in Japan. The median age is 39.8 years in the United States of America and 51.3 years in Japan.

The total fertility rate is 1.62 in the United States of America and 1.24 in Japan, both below the replacement level of about 2.1. Life expectancy at birth is 79.9 years in the United States of America and 85.3 years in Japan.

By 2050, the population of the United States of America is projected to grow by 8.7% and that of Japan to shrink by 13.9% compared with 2027.

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 (2027)

United States of AmericaJapan
Population349.8 million122 million
Aged 0–1416.8%11.0%
Aged 15–6464.1%58.8%
Aged 65+19.0%30.2%
Median age39.8 yrs51.3 yrs
Old-age dependency29.751.4
Total fertility rate1.621.24
Life expectancy79.9 yrs85.3 yrs
Population growth+0.48%-0.58%
Net migration (per year)+1.2 million+127,401
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.

Compare other years