Thailand population
Thailand: 71.6 million people in 2025 (71,619,863), 20th of 217 countries and areas — and 66.4 million projected for 2050.
Compare Thailand with another country
Where it stands
In 2025 Thailand has 71,619,863 people, which is 0.87% of the 8.19 billion counted across the 217 countries and areas on this site. That puts it 20th by population, behind Germany and ahead of Tanzania.
Since 1960
In 1960 the figure was 26,851,747. Since then the population has grown 2.67×, an average of 1.52% a year upward. It doubled at some point along the way — the year it first reached 53,703,494 was 1989.
The population peaked in 2022 at 71,735,329, and it has fallen 0.2% since. By 2050 the projected total is 66,382,735, 7.3% below the 2025 figure.
The ranking in 2050
In 2050 the projected rank is 31st, down 11 places from 20th. Rankings move when other countries grow faster or slower, not only when Thailand changes.
People and land
Thailand covers 510,890 km² of land, so 2025 density is 140 people per km² — 83rd most crowded of 216 places with an area figure. At that density a square 10 km on a side holds about 14,019 people.
The fertility rate was 1.2 births per woman in 2024, below the roughly 2.1 needed to keep a population steady without migration; life expectancy at birth was 76.6 years (2024); 14.4% of people were under 15 and 16% were 65 or older (2025); 63% of the population lived in cities. These shape the curve above: a young population keeps growing after fertility falls, an old one starts shrinking sooner.
Its nearest neighbours in the ranking are Germany just above, with 83.5 million (1.17× as many), and Tanzania just below, with 70.5 million (1.02× as many as Tanzania has).
How the numbers are taken. Total population from the World Bank's population estimates and projections (built from United Nations and national statistics). Values to 2025 are estimates; 2026–2050 are projections that continue current fertility, mortality and migration trends. Sources and limits.