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

Indonesia vs Japan: population pyramids in 2045

2045Swap

IndonesiaJapan

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.

Indonesia and Japan compared

In 2045, Indonesia has a population of 316.8 million and Japan 108.6 million; Indonesia is about 2.9 times the size of Japan.

The share aged 65 and over is 13.5% in Indonesia and 36.6% in Japan, 23.1 points higher in Japan. The median age is 36.4 years in Indonesia and 53.9 years in Japan.

The total fertility rate is 1.87 in Indonesia and 1.33 in Japan, both below the replacement level of about 2.1. Life expectancy at birth is 74.3 years in Indonesia and 87.8 years in Japan.

By 2050, the population of Indonesia is projected to grow by 1.2% and that of Japan to shrink by 3.3% compared with 2045.

GDP per person is $5,060 in Indonesia (2025) and $36K in Japan (2025).

Figures from 2024 are UN medium-variant projections.

Key figures (2045)

IndonesiaJapan
Population316.8 million108.6 million
Aged 0–1419.9%10.9%
Aged 15–6466.6%52.5%
Aged 65+13.5%36.6%
Median age36.4 yrs53.9 yrs
Old-age dependency20.369.6
Total fertility rate1.871.33
Life expectancy74.3 yrs87.8 yrs
Population growth+0.28%-0.65%
Net migration (per year)-48,279+113,424
GDP$1.45T (2025)$4.44T (2025)
GDP per person$5,060 (2025)$36K (2025)
Unemployment3.2% (2025)2.5% (2025)

Economic figures are the latest year published for each country.

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