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Indonesia vs Japan: population pyramids in 2039

2039Swap

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 2039, Indonesia has a population of 309.8 million and Japan 113 million; Indonesia is about 2.7 times the size of Japan.

The share aged 65 and over is 11.7% in Indonesia and 34.5% in Japan, 22.8 points higher in Japan. The median age is 34.9 years in Indonesia and 53.9 years in Japan.

The total fertility rate is 1.92 in Indonesia and 1.31 in Japan, both below the replacement level of about 2.1. Life expectancy at birth is 73.4 years in Indonesia and 87.0 years in Japan.

By 2050, the population of Indonesia is projected to grow by 3.4% and that of Japan to shrink by 7.1% compared with 2039.

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

Figures from 2024 are UN medium-variant projections.

Key figures (2039)

IndonesiaJapan
Population309.8 million113 million
Aged 0–1420.7%10.3%
Aged 15–6467.6%55.2%
Aged 65+11.7%34.5%
Median age34.9 yrs53.9 yrs
Old-age dependency17.262.4
Total fertility rate1.921.31
Life expectancy73.4 yrs87.0 yrs
Population growth+0.44%-0.65%
Net migration (per year)-50,892+120,375
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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