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

Thailand vs Japan: population pyramids in 2003

2003Swap

ThailandJapan

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.

Thailand and Japan compared

In 2003, Thailand has a population of 64.6 million and Japan 127.6 million; Japan is about 2.0 times the size of Thailand.

The share aged 65 and over is 6.8% in Thailand and 18.8% in Japan, 12.1 points higher in Japan. The median age is 31.1 years in Thailand and 42.6 years in Japan.

The total fertility rate is 1.67 in Thailand and 1.29 in Japan, both below the replacement level of about 2.1. Life expectancy at birth is 72.1 years in Thailand and 81.8 years in Japan.

By 2050, the population of Thailand is projected to grow by 3.0% and that of Japan to shrink by 17.7% compared with 2003.

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

Key figures (2003)

ThailandJapan
Population64.6 million127.6 million
Aged 0–1423.2%14.0%
Aged 15–6470.0%67.1%
Aged 65+6.8%18.8%
Median age31.1 yrs42.6 yrs
Old-age dependency9.728.1
Total fertility rate1.671.29
Life expectancy72.1 yrs81.8 yrs
Population growth+0.92%+0.13%
Net migration (per year)+105,917+74,875
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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