The population of Thailand is expected to decrease by 60,249 in 2026 and reach 71,488,156 in 2027. Migration (including immigration and emigration) increases population by 29,200 people yearly. On average there are 572,191 births and 666,339 deaths in Thailand per year. The population density of Thailand has changed from 89.4 in 1980 to 140.3 in 2024.
| Current population | 71,498,141 people at present (Tuesday 10th of November 2026) | |
| Median Age | 41.6 years |
| Life expectancy | 77.0 years | |
| Population density | 140.1 per km2 |
| Year | Population | Year change | Migrants | Median age | Fertility rate | Density (Ppl/km2) | Urban population |
|---|---|---|---|---|---|---|---|
| 2026 | 71,559,614 | -60,249 (-0.1%) | 29,200 | 41.6 | 1.20 | 140 | 45,600,307 (63.7%) |
| 2025 | 71,619,863 | -48,148 (-0.1%) | 27,509 | 41.2 | 1.20 | 140 | 44,976,800 (62.8%) |
| 2024 | 0 | 0 (0.0%) | 23,321 | 40.8 | 1.20 | 140 | 44,340,234 (61.9%) |
| 2023 | 0 | 0 (0.0%) | 19,648 | 40.4 | 1.21 | 140 | 43,691,300 (60.9%) |
| 2022 | 0 | 0 (0.0%) | 21,683 | 40.0 | 1.22 | 140 | 42,856,389 (59.7%) |
| 2021 | 0 | 0 (0.0%) | -2,093 | 39.6 | 1.23 | 140 | 41,966,785 (58.5%) |
| 2020 | 71,641,484 | 119,213 (0.2%) | 32,277 | 39.2 | 1.26 | 140 | 41,004,632 (57.2%) |
| 2019 | 0 | 0 (0.0%) | 5,221 | 38.7 | 1.29 | 140 | 39,999,986 (55.9%) |
| 2018 | 0 | 0 (0.0%) | 10,984 | 38.3 | 1.32 | 140 | 38,960,186 (54.6%) |
| 2017 | 0 | 0 (0.0%) | 66,805 | 37.9 | 1.36 | 139 | 35,033,012 (49.2%) |
| 2016 | 0 | 0 (0.0%) | 112,978 | 37.5 | 1.40 | 139 | 33,927,770 (47.9%) |
| 2015 | 70,540,795 | 324,428 (0.5%) | 32,500 | 37.0 | 1.45 | 138 | 33,120,388 (47.0%) |
| 2010 | 68,579,447 | 458,367 (0.7%) | 52,791 | 35.1 | 1.56 | 134 | 30,176,242 (44.0%) |
| 2005 | 66,017,420 | 565,373 (0.9%) | 100,542 | 33.2 | 1.64 | 129 | 25,172,548 (38.1%) |
| 2000 | 63,007,815 | 708,772 (1.1%) | 121,640 | 31.3 | 1.73 | 123 | 19,823,910 (31.5%) |
| 1995 | 59,098,232 | 837,378 (1.4%) | 147,226 | 29.2 | 1.89 | 116 | 14,247,984 (24.1%) |
| 1990 | 54,738,329 | 889,373 (1.6%) | 152,916 | 27.1 | 2.07 | 107 | 10,294,719 (18.8%) |
| 1985 | 50,270,753 | 919,045 (1.8%) | 141,963 | 25.4 | 2.45 | 98 | 8,958,581 (17.8%) |
| 1980 | 45,650,022 | 931,588 (2.0%) | 88,478 | 24.0 | 3.29 | 89 | 7,799,035 (17.1%) |
| 1975 | 40,940,005 | 987,114 (2.4%) | 66,306 | 22.9 | 4.36 | 80 | 6,229,352 (15.2%) |
| 1970 | 35,954,408 | 980,626 (2.7%) | 49,221 | 22.2 | 5.45 | 70 | 4,779,897 (13.3%) |
| 1965 | 31,149,337 | 917,196 (2.9%) | 22,995 | 22.1 | 6.26 | 61 | 3,883,424 (12.5%) |
| 1960 | 26,851,747 | 798,587 (2.9%) | 6,886 | 22.4 | 6.33 | 53 | 3,175,462 (11.8%) |
In 2025 the population of Thailand was 71,619,863 and the average age increased from 22.4 in 1960 to 41.2. Urban population has increased from 19,823,910 (31.5%) in 2000 to 45,600,307 (63.7%) in the current year. The population density of Thailand has changed from 89.4 in 1980 to 140.3 in 2024.
| Year | Population | Year change | Migrants | Median age | Fertility rate | Density (Ppl/km2) | Urban population |
|---|---|---|---|---|---|---|---|
| 2020 | 0 | 0 (0.0%) | 32,277 | 39.2 | 1.26 | 140 | 41,004,632 (57.2%) |
| 2025 | 0 | 0 (0.0%) | 27,509 | 41.2 | 1.20 | 140 | 44,976,800 (62.8%) |
| 2030 | 71,215,022 | -101,171 (-0.1%) | 43,712 | 43.1 | 1.20 | 139 | 47,942,286 (67.3%) |
| 2035 | 70,540,885 | -160,769 (-0.2%) | 49,353 | 44.7 | 1.22 | 138 | 50,402,194 (71.5%) |
| 2040 | 69,535,002 | -228,931 (-0.3%) | 60,414 | 46.1 | 1.25 | 136 | 52,120,613 (75.0%) |
| 2045 | 68,150,152 | -306,378 (-0.5%) | 64,949 | 47.3 | 1.27 | 133 | 52,884,563 (77.6%) |
| 2050 | 66,382,735 | -384,582 (-0.6%) | 65,509 | 48.2 | 1.29 | 130 | 52,540,814 (79.1%) |
The life expectancy at birth should reach 81.7 (78.6 years for male and 84.8 years for females). Population density will go up to 129.9 people per square kilometer.
The population growth rate is minus 0.08% (48,148 residents, including 647,377 deaths). The demographics of Thailand constitutes of 36,786,545 women and 34,773,069 men, which means there are 945 men per 1000 women. As far as age distribution goes, 20.0% of population (14,283,299) is 19 or younger, 63.4% of population (45,347,327) is between age 20 and 64 and 16.7% of population (11,936,144) is over 65.