In 1800, the population of the territory that makes up present-day Thailand was approximately 4.7 million people. As part of the kingdom of Siam, the population of Thailand would grow gradually through the 19 th century, with much of the population growth being driven by Chinese emigration from southern Qing China into Siam, in search of work and refuge from instability in their home country. This migrant influx would continue throughout the century, with estimates suggesting that the Chinese population in Siam grew from 230,000 in 1825, to over 792,000 in 1910; by 1932, over 12 percent of the population in modern-day Thailand was ethnically Chinese. Migration from China would see another surge under the reign of Vajiravudh, as the "Warlord era" in China, after the fall of the Qing dynasty, would see entire families of Chinese immigrants arriving in Thailand. While immigration would slow in later years, Chinese-Thai would remain a significant demographic in Thailand’s population, both as one of the largest overseas Chinese populations, and accounting for an estimated 11-14 percent of the total Thailand population in 2012.

Population growth would slow somewhat in the 1930s, as several rebellions and coups, paired with a rise in anti-Chinese sentiment in the country, would result in a sharp decline in immigration to the country. In the years following the Second World War, the population of Thailand would begin to grow rapidly, following a wave of urbanization and a significant increase in standard of living throughout the country. As a result, the population of Thailand would rise from approximately 20 million in 1950, to just under 63 million by the turn of the century just 50 years later. This population growth would slow somewhat as the country would continue to modernize in the 2000s, and in 2020, it is estimated that just under 70 million people live in Thailand.

Thailand Population: Whole Kingdom data was reported at 65,951.210 Person th in 2024. This records a decrease from the previous number of 66,052.615 Person th for 2023. Thailand Population: Whole Kingdom data is updated yearly, averaging 58,715.746 Person th from Dec 1963 (Median) to 2024, with 62 observations. The data reached an all-time high of 66,558.935 Person th in 2019 and a record low of 28,476.777 Person th in 1963. Thailand Population: Whole Kingdom data remains active status in CEIC and is reported by Department of Provincial Administration. The data is categorized under Global Database’s Thailand – Table TH.G001: Population: By Region and Registration.

Thailand Population: By Province: Bangkok data was reported at 5,682.415 Person th in 2017. This records a decrease from the previous number of 5,686.646 Person th for 2016. Thailand Population: By Province: Bangkok data is updated yearly, averaging 5,682.415 Person th from Dec 1993 (Median) to 2017, with 25 observations. The data reached an all-time high of 5,844.607 Person th in 2003 and a record low of 5,570.743 Person th in 1995. Thailand Population: By Province: Bangkok data remains active status in CEIC and is reported by Department of Provincial Administration. The data is categorized under Global Database’s Thailand – Table TH.G001: Population: By Region and Registration.

The total population of Thailand was estimated at 70.27 million people in 2024. Following a continuous upward trend, the total population has risen by 22.9 million people from 1980 to 2024. Looking forward, the total population will rise by 130,000 people until 2030, showing an overall upward trend with periodic ups and downs.This indicator describes the total population in the country at hand. This total population of the country consists of all persons falling within the scope of the census.

Thailand Population: By Province: Chainat data was reported at 329.722 Person th in 2017. This records a decrease from the previous number of 330.431 Person th for 2016. Thailand Population: By Province: Chainat data is updated yearly, averaging 340.129 Person th from Dec 1993 (Median) to 2017, with 25 observations. The data reached an all-time high of 353.749 Person th in 1998 and a record low of 329.722 Person th in 2017. Thailand Population: By Province: Chainat data remains active status in CEIC and is reported by Department of Provincial Administration. The data is categorized under Global Database’s Thailand – Table TH.G001: Population: By Region and Registration.

The total population of Thailand was estimated at about 70.27 million people in 2024. Following a continuous upward trend, the total population has risen by around 22.90 million people from 1980 to 2024. Looking forward, the total population will rise by approximately 130 thousand people until 2030, showing an overall upward trend with periodic ups and downs.This indicator describes the total population in the country at hand. This total population of the country consists of all persons falling within the scope of the census.

Thailand Population: Age 0-4 Year data was reported at 3,392,483.000 Person in 2017. This records a decrease from the previous number of 3,565,020.000 Person for 2016. Thailand Population: Age 0-4 Year data is updated yearly, averaging 3,922,534.500 Person from Dec 1994 (Median) to 2017, with 24 observations. The data reached an all-time high of 4,614,957.000 Person in 1996 and a record low of 3,392,483.000 Person in 2017. Thailand Population: Age 0-4 Year data remains active status in CEIC and is reported by Department of Provincial Administration. The data is categorized under Global Database’s Thailand – Table TH.G002: Population: By Age.

In 2023, the annual population growth in Thailand decreased by 0.1 percentage points (-1000 percent) compared to 2022. In 2023, the population growth thereby reached its lowest value in recent years. Annual population growth refers to the change in the population over time, and is affected by factors such as fertility, mortality, and migration.Find more key insights for the annual population growth in countries like Indonesia and Cambodia.

Thailand TH: Population: as % of Total: Female: Aged 0-14 data was reported at 16.431 % in 2017. This records a decrease from the previous number of 16.758 % for 2016. Thailand TH: Population: as % of Total: Female: Aged 0-14 data is updated yearly, averaging 30.729 % from Dec 1960 (Median) to 2017, with 58 observations. The data reached an all-time high of 43.593 % in 1968 and a record low of 16.431 % in 2017. Thailand TH: Population: as % of Total: Female: Aged 0-14 data remains active status in CEIC and is reported by World Bank. The data is categorized under Global Database’s Thailand – Table TH.World Bank.WDI: Population and Urbanization Statistics. Female population between the ages 0 to 14 as a percentage of the total female population. Population is based on the de facto definition of population.; ; World Bank staff estimates based on age/sex distributions of United Nations Population Division's World Population Prospects: 2017 Revision.; Weighted average; Relevance to gender indicator: Knowing how many girls, adolescents and women there are in a population helps a country in determining its provision of services.

In 2023, the share of children in Thailand amounted to approximately 16.22 percent of the population. This was a slight decrease compared to the previous year, which amounted to 16.43 percent of the population in Thailand.

Thailand Population: Age 30-34 Year data was reported at 4,687,295.000 Person in 2017. This records a decrease from the previous number of 4,825,484.000 Person for 2016. Thailand Population: Age 30-34 Year data is updated yearly, averaging 5,362,241.000 Person from Dec 1994 (Median) to 2017, with 24 observations. The data reached an all-time high of 5,686,617.000 Person in 1998 and a record low of 4,687,295.000 Person in 2017. Thailand Population: Age 30-34 Year data remains active status in CEIC and is reported by Department of Provincial Administration. The data is categorized under Global Database’s Thailand – Table TH.G002: Population: By Age.

In 2020, the average age in Thailand is expected to reach 38.2 years, twenty years higher than in 1980, when it began to rise after a steady decrease in prior years. Previously, from 1950 to 1975, the average age hovered around 17 years. The increased average age corresponds with rising life expectancy globally, accelerating especially around the mid-twentieth century onward. In this century, the life expectancy in Thailand has increased by roughly 2.5 years since 2007, reaching 78.39 in 2017. The standard of living is increasing In Thailand, people ages 15 to 64 have consistently made up the majority of the population from 2007 to 2017. In this time, the older population grew increased by about three percent, while the younger population shrunk at roughly the same rate. This indicates that many people within the middle age category are reaching 65 or older, and that the birth rate is simultaneously declining. Birth rates are declining Every year, families are having fewer children in Thailand, with a fertility rate of less than 1.5 children per women of childbearing age in 2017. This is not necessarily a bad sign – it points towards increasing healthcare and living standards. Another indicator for this is the decreasing infant mortality in Thailand, meaning more of the children born each year survive. Lower infant mortality also contributes to the calculations of a higher life expectancy, and thus affects the country’s median age.

As of March 2024, the population of those who were no older than 15 years old in Thailand amounted to approximately ***** 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 ***** 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 ** 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 ** 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.

In 2023, the annual population growth in Thailand amounted to -0.05 percent. Between 1961 and 2023, the figure dropped by 2.98 percentage points, though the decline followed an uneven course rather than a steady trajectory.

Thailand Population: Female: TNHR: by Age: 0 to 4 Year data was reported at 1,647,145.000 Person in 2017. This records a decrease from the previous number of 1,732,262.000 Person for 2016. Thailand Population: Female: TNHR: by Age: 0 to 4 Year data is updated yearly, averaging 1,905,459.000 Person from Dec 1994 (Median) to 2017, with 24 observations. The data reached an all-time high of 2,242,520.000 Person in 1996 and a record low of 1,647,145.000 Person in 2017. Thailand Population: Female: TNHR: by Age: 0 to 4 Year data remains active status in CEIC and is reported by Department of Provincial Administration. The data is categorized under Global Database’s Thailand – Table TH.G002: Population: By Age.

In 2023, the number of refugees residing in Thailand decreased by 7.2 thousand refugees (-7.62 percent) compared to 2022. As a result, the number of refugees residing in Thailand saw its lowest number in 2023 with 87.31 thousand refugees. Notably, the number of refugees residing is continuously decreasing over the last years.Refugee population includes people who are outside of their country of origin for reasons of feared persecution, conflict, generalized violence, or other circumstances that have seriously disturbed public order and, therefore, require international protection. Country or territory of asylum is the country or territory where an asylum claim was filed and granted.Find more statistics on other topics about Thailand with key insights such as fertility rate of women aged between 15 and 19 years old, total life expectancy at birth, and male smoking rate.

In 2023, there were almost *** thousand male deaths in Thailand. In comparison, the number of female deaths reached around ****** thousand in that same year.

Thailand Population: Female: TNHR: by Age: 45 Year data was reported at 543,478.000 Person in 2017. This records a decrease from the previous number of 555,786.000 Person for 2016. Thailand Population: Female: TNHR: by Age: 45 Year data is updated yearly, averaging 487,543.000 Person from Dec 1994 (Median) to 2017, with 24 observations. The data reached an all-time high of 569,130.000 Person in 2013 and a record low of 312,297.000 Person in 1994. Thailand Population: Female: TNHR: by Age: 45 Year data remains active status in CEIC and is reported by Department of Provincial Administration. The data is categorized under Global Database’s Thailand – Table TH.G002: Population: By Age.

Thailand Population: By Province: Nan data was reported at 479.838 Person th in 2017. This records a decrease from the previous number of 479.916 Person th for 2016. Thailand Population: By Province: Nan data is updated yearly, averaging 478.080 Person th from Dec 1993 (Median) to 2017, with 25 observations. The data reached an all-time high of 489.505 Person th in 1999 and a record low of 459.943 Person th in 1993. Thailand Population: By Province: Nan data remains active status in CEIC and is reported by Department of Provincial Administration. The data is categorized under Global Database’s Thailand – Table TH.G001: Population: By Region and Registration.

Thailand Population: By Province: Uthai Thani data was reported at 329.942 Person th in 2017. This records a decrease from the previous number of 330.299 Person th for 2016. Thailand Population: By Province: Uthai Thani data is updated yearly, averaging 328.950 Person th from Dec 1993 (Median) to 2017, with 25 observations. The data reached an all-time high of 339.483 Person th in 2003 and a record low of 319.094 Person th in 1993. Thailand Population: By Province: Uthai Thani data remains active status in CEIC and is reported by Department of Provincial Administration. The data is categorized under Global Database’s Thailand – Table TH.G001: Population: By Region and Registration.