Thailand Population Pyramid 2040
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2040
Population:
69,535,002
Summary
Thailand in 2040
United Nations projections (medium variant) put the population of Thailand at 69,535,002 in 2040. Compared with 2030, when the projection stands at 71,215,022, that represents a decline of 2.4% over ten years.
With a projected median age of 47.0 years, Thailand would have a youth dependency ratio of 18.9 and an old-age dependency ratio of 40.8 per 100 people of working age. This is a constrictive pyramid — its base is narrower than its middle, the signature of sustained low birth rates and population ageing.
Data source: United Nations World Population Prospects, 2024 revision (medium variant) — last updated July 2024.
Key indicators for Thailand
Population
69,535,002
Median age
47.0
0-14 %
11.8%
65+ %
25.6%
Child dependency
18.9
Old-age dependency
40.8
Region
Pyramid shape
Population 2050
66,382,735
Population 2100
45,555,065
What is driving the change
Births per woman
Total fertility rate, 1960–2023
1234567
1960Replacement level (2.1)2023 · 1.21
The fertility rate of Thailand was 1.21 births per woman in 2023, under the 2.1 needed to replace each generation.
Source: World Bank World Development Indicators, latest available year.
Life expectancy at birth
Years, 1960–2023
Total
Women
Men
405060708090
19602023 · 76.4
Life expectancy at birth was 76.4 years in 2023: 80.9 for women and 72.2 for men.
Source: World Bank World Development Indicators, latest available year.
People supported per 100 workers
Dependency ratios, 1950–2100
Children
Older adults
22456890
19502100
Migration to and from Thailand
Where immigrants come from (2024)
2,906,155 immigrants live in Thailand, 4.1% of the population.
| Myanmar | 1,708,695 |
| Cambodia | 375,635 |
| Laos | 285,819 |
| United Kingdom | 116,582 |
| Japan | 104,515 |
Where emigrants live (2024)
1,178,284 people born in Thailand live in other countries.
| United States of America | 307,741 |
| Republic of Korea | 199,861 |
| Australia | 109,845 |
| Taiwan | 80,032 |
| Malaysia | 70,718 |
Explore
Immigration statistics
Origin of migrant stocks map
Source: United Nations International Migrant Stock 2024.
How Thailand compares with its neighbours
| Country | Population | Median age | Relative size |
|---|---|---|---|
| Thailand | 69,535,002 | 47.0 | |
| Myanmar | 58,169,858 | 35.3 | |
| Malaysia | 41,509,644 | 37.9 | |
| Viet Nam | 108,437,635 | 39.2 | |
| Cambodia | 20,540,683 | 30.6 |
Frequently asked questions about Thailand's population
How many people are projected to live in Thailand in 2040?
UN projections put Thailand's population at 69,535,002 in 2040.
Is the population of Thailand increasing or decreasing?
Thailand's population declined 2.4% over the previous ten years, and is projected to reach 66,382,735 by 2050.
What is the median age in Thailand?
The median age in Thailand is 47.0 years — half the population is younger, half older.
What share of Thailand's population is over 65 or under 15?
In Thailand, 11.8% of people are under 15 and 25.6% are 65 or older.
What type of population pyramid does Thailand have?
Thailand has a constrictive pyramid: cohorts of children are smaller than those of their parents, reflecting low fertility and an ageing population.
