| Source | UN (World Population Prospects 2019) |
| Date | 11 Dec 2021 |
As of 2021, the population of Thailand is projected at 69.95 million, up by 0.22% compared with 69.80 million in 2020. Thailand is ranked 20th in terms of population and 185th in terms of population growth rate.
There are 0.69 million births in Thailand in 2021. That is 1,878 per day, which is ranked 44th. The crude birth rate is 9.8 per 1000 people. There are 0.56 million deaths in Thailand in 2021. That is 1,543 per day, which is ranked 22nd. The crude death rate is 8.06 per 1000 people.
36.25 million people are living in urban areas, which is 52.16% of Thailand population. Thailand is ranked 157th in terms of urbanization.
The Sex Ratio in Thailand in 2021 is 94.66 males per 100 females. There are 34.02 million males and 35.93 million females in Thailand. The percentage of female population is 51.37% compare to 48.63% male population. Thailand has 1.92 million more females than males. Thailand is at 40th position out of 201 countries/territories in terms of female to male ratio.
| Year | Population | Growth (%) |
|---|---|---|
| 1950 | 20,710,353 | - |
| 1955 | 23,711,122 | 2.82 |
| 1960 | 27,397,208 | 3 |
| 1965 | 31,822,656 | 3.05 |
| 1970 | 36,884,525 | 2.95 |
| 1975 | 42,326,307 | 2.6 |
| 1980 | 47,374,463 | 2.1 |
| 1985 | 52,026,901 | 1.82 |
| 1990 | 56,558,196 | 1.41 |
| 1995 | 59,467,272 | 1.01 |
| 2000 | 62,952,639 | 1.05 |
| 2005 | 65,416,189 | 0.65 |
| 2010 | 67,195,032 | 0.49 |
| 2015 | 68,714,519 | 0.4 |
| 2016 | 68,971,313 | 0.37 |
| 2017 | 69,209,817 | 0.35 |
| 2018 | 69,428,454 | 0.32 |
| 2019 | 69,625,581 | 0.28 |
| 2020 | 69,799,978 | 0.25 |
| 2021 | 69,950,844 | 0.22 |
| Year | Total | Crude(per 1000) | ||
|---|---|---|---|---|
| Death | Birth | Crude death | Crude birth | |
| 1950 | 335,294 | 882,828 | 15.97 | 42.07 |
| 1955 | 352,266 | 1,019,703 | 14.79 | 42.85 |
| 1960 | 362,308 | 1,174,526 | 13.18 | 42.73 |
| 1965 | 371,861 | 1,332,323 | 11.64 | 41.71 |
| 1970 | 372,206 | 1,397,335 | 10.07 | 37.85 |
| 1975 | 357,130 | 1,344,805 | 8.44 | 31.80 |
| 1980 | 345,735 | 1,253,406 | 7.29 | 26.45 |
| 1985 | 318,620 | 1,153,769 | 6.13 | 22.13 |
| 1990 | 321,769 | 1,083,054 | 5.71 | 19.22 |
| 1995 | 378,578 | 1,009,741 | 6.34 | 16.91 |
| 2000 | 431,680 | 911,978 | 6.88 | 14.52 |
| 2005 | 465,393 | 841,520 | 7.12 | 12.87 |
| 2010 | 483,134 | 790,165 | 7.19 | 11.76 |
| 2015 | 507,439 | 744,333 | 7.39 | 10.84 |
| 2020 | 552,230 | 696,526 | 7.92 | 9.99 |
| 2021 | 563,287 | 685,304 | 8.06 | 9.80 |
| Year | Population | Urbanization | ||
|---|---|---|---|---|
| Urban | Rural | growth rate (%) | Urban (%) | |
| 1950 | 3,412,898 | 17,297,462 | - | 16.479 |
| 1955 | 4,277,639 | 19,433,407 | 4.69 | 18.041 |
| 1960 | 5,389,651 | 22,007,524 | 4.60 | 19.672 |
| 1965 | 6,434,876 | 25,387,920 | 3.61 | 20.221 |
| 1970 | 7,704,931 | 29,179,982 | 4.05 | 20.889 |
| 1975 | 10,058,137 | 32,276,817 | 5.24 | 23.758 |
| 1980 | 12,695,065 | 34,690,258 | 4.23 | 26.791 |
| 1985 | 14,621,264 | 37,420,205 | 2.79 | 28.095 |
| 1990 | 16,648,721 | 39,934,100 | 2.31 | 29.424 |
| 1995 | 18,012,031 | 41,479,759 | 1.58 | 30.276 |
| 2000 | 19,759,915 | 43,198,106 | 2.41 | 31.386 |
| 2005 | 24,476,532 | 40,948,938 | 4.11 | 37.411 |
| 2010 | 29,475,114 | 37,733,694 | 3.59 | 43.856 |
| 2015 | 32,745,680 | 35,911,920 | 1.96 | 47.694 |
| 2020 | 35,698,325 | 33,712,543 | 1.61 | 51.430 |
| 2021 | 36,252,084 | 33,246,040 | 1.55 | 52.163 |
| Age group | Male | Female | Total | M per 100 F | |
|---|---|---|---|---|---|
| Persons | Share (%) | ||||
| 00-04 | 1,826,986 | 1,721,846 | 3,548,832 | 5.07 | 106.106 |
| 05-09 | 1,949,649 | 1,842,751 | 3,792,400 | 5.42 | 105.801 |
| 10-14 | 2,090,094 | 1,971,651 | 4,061,745 | 5.81 | 106.007 |
| 15-19 | 2,209,634 | 2,098,625 | 4,308,259 | 6.16 | 105.290 |
| 20-24 | 2,419,934 | 2,323,826 | 4,743,760 | 6.78 | 104.136 |
| 25-29 | 2,451,320 | 2,411,664 | 4,862,984 | 6.95 | 101.644 |
| 30-34 | 2,247,861 | 2,249,727 | 4,497,588 | 6.43 | 99.917 |
| 35-39 | 2,312,729 | 2,345,690 | 4,658,419 | 6.66 | 98.595 |
| 40-44 | 2,530,323 | 2,663,590 | 5,193,913 | 7.43 | 94.997 |
| 45-49 | 2,652,606 | 2,892,266 | 5,544,872 | 7.93 | 91.714 |
| 50-54 | 2,659,317 | 2,950,659 | 5,609,976 | 8.02 | 90.126 |
| 55-59 | 2,440,776 | 2,724,787 | 5,165,563 | 7.38 | 89.577 |
| 60-64 | 2,097,159 | 2,396,928 | 4,494,087 | 6.42 | 87.494 |
| 65-69 | 1,570,021 | 1,854,407 | 3,424,428 | 4.90 | 84.664 |
| 70-74 | 1,062,721 | 1,329,971 | 2,392,692 | 3.42 | 79.906 |
| 75-79 | 704,029 | 931,171 | 1,635,200 | 2.34 | 75.607 |
| 80-84 | 449,810 | 649,015 | 1,098,825 | 1.57 | 69.307 |
| 85-89 | 228,559 | 369,510 | 598,069 | 0.85 | 61.855 |
| 90-94 | 89,363 | 158,699 | 248,062 | 0.35 | 56.310 |
| 95-99 | 20,937 | 40,579 | 61,516 | 0.09 | 51.596 |
| 100+ | 2,974 | 6,680 | 9,654 | 0.01 | 44.521 |
| Total | 34,016,802 | 35,934,042 | 69,950,844 | 94.665 | |