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

Thailand vs Japan: population pyramids in 1987

1987Swap

ThailandJapan

1.5%1%0.5%0%0.5%1%1.5%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.

Thailand and Japan compared

In 1987, Thailand has a population of 51.6 million and Japan 121.7 million; Japan is about 2.4 times the size of Thailand.

The share aged 65 and over is 3.6% in Thailand and 10.8% in Japan, 7.2 points higher in Japan. The median age is 22.5 years in Thailand and 36.2 years in Japan.

The total fertility rate is 2.26 in Thailand and 1.67 in Japan, so only Japan is below the replacement level of about 2.1. Life expectancy at birth is 67.8 years in Thailand and 78.6 years in Japan.

By 2050, the population of Thailand is projected to grow by 28.8% and that of Japan to shrink by 13.7% compared with 1987.

GDP per person is $8,057 in Thailand (2025) and $36K in Japan (2025).

Key figures (1987)

ThailandJapan
Population51.6 million121.7 million
Aged 0–1432.8%20.7%
Aged 15–6463.6%68.5%
Aged 65+3.6%10.8%
Median age22.5 yrs36.2 yrs
Old-age dependency5.715.7
Total fertility rate2.261.67
Life expectancy67.8 yrs78.6 yrs
Population growth+1.72%+0.46%
Net migration (per year)+122,791+28,001
GDP$577B (2025)$4.44T (2025)
GDP per person$8,057 (2025)$36K (2025)
Unemployment0.8% (2025)2.5% (2025)

Economic figures are the latest year published for each country.

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