Thailand: population by age group 2024

As of March 2024, the population of those who were no older than 15 years old in Thailand amounted to approximately 11.04 million, which was the highest compared to other age groups. The next largest age group was between the ages of 46 and 55, with a total of around 10.24 million people.

 Population development in Thailand

Thailand is the fourth most populated country among all ASEAN (Association of South-East Asian Nations) member countries. The recent total population in the country stood at around 70 million. While the total population number is expected to increase, the number of children in Thailand has decreased over the years.

Thailand’s aging society

  Thailand is one of the fastest-aging countries in the world. As of January 2023, the proportion of senior citizens in Thailand stood at 18 percent. The elderly population in the country is predicted to continue growing steadily in the future. Therefore, ASEAN established the ASEAN Centre for Active Aging and Innovation (ACAI) in 2018 under the leadership of Thailand. ACAI aims to promote healthy aging and enhance the lifelong quality of aging in Thailand and other ASEAN countries.

Resident population in Thailand as of March 2024, by age group (in millions)

Characteristic	Population in millions
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Release date

April 2024

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Region

Asia, Thailand

Survey time period

March 2024

Supplementary notes

Figures include only the registered population.

Figures have been rounded.

The presented data is calculated manually by summing up the age group from the categories according to the source.

Date used here is the date of access. Source did not provide a release date

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