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

Thailand vs Japan: population pyramids in 1983

1983Swap

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 1983, Thailand has a population of 48 million and Japan 119.7 million; Japan is about 2.5 times the size of Thailand.

The share aged 65 and over is 3.4% in Thailand and 9.7% in Japan, 6.3 points higher in Japan. The median age is 20.8 years in Thailand and 34.1 years in Japan.

The total fertility rate is 2.75 in Thailand and 1.77 in Japan, so only Japan is below the replacement level of about 2.1. Life expectancy at birth is 64.5 years in Thailand and 77.1 years in Japan.

By 2050, the population of Thailand is projected to grow by 38.7% and that of Japan to shrink by 12.3% compared with 1983.

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

Key figures (1983)

ThailandJapan
Population48 million119.7 million
Aged 0–1436.5%22.8%
Aged 15–6460.1%67.5%
Aged 65+3.4%9.7%
Median age20.8 yrs34.1 yrs
Old-age dependency5.614.3
Total fertility rate2.751.77
Life expectancy64.5 yrs77.1 yrs
Population growth+1.94%+0.38%
Net migration (per year)+143,393-269,755
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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