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

Japan vs United Kingdom: population pyramids in 2000

2000Swap

JapanUnited Kingdom

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 Kingdom compared

In 2000, Japan has a population of 126.9 million and the United Kingdom 58.9 million; Japan is about 2.2 times the size of the United Kingdom.

The share aged 65 and over is 17.1% in Japan and 15.9% in the United Kingdom, 1.3 points higher in Japan. The median age is 41.6 years in Japan and 37.5 years in the United Kingdom.

The total fertility rate is 1.35 in Japan and 1.64 in the United Kingdom, both below the replacement level of about 2.1. Life expectancy at birth is 81.2 years in Japan and 77.8 years in the United Kingdom.

By 2050, the population of Japan is projected to shrink by 17.2% and that of the United Kingdom to grow by 27.9% compared with 2000.

GDP per person is $36K in Japan (2025) and $58K in the United Kingdom (2025).

Key figures (2000)

JapanUnited Kingdom
Population126.9 million58.9 million
Aged 0–1414.5%19.1%
Aged 15–6468.4%65.0%
Aged 65+17.1%15.9%
Median age41.6 yrs37.5 yrs
Old-age dependency25.124.4
Total fertility rate1.351.64
Life expectancy81.2 yrs77.8 yrs
Population growth+0.18%+0.38%
Net migration (per year)+23,468+153,917
GDP$4.44T (2025)$4T (2025)
GDP per person$36K (2025)$58K (2025)
Unemployment2.5% (2025)4.8% (2025)

Economic figures are the latest year published for each country.

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