Skip to content

Fertility & birth rates in Thailand and Tonga

Updated on by Georank team

Thailand has an annual birth rate of 8.24 births per 1,000 people, compared to 23.1 for Tonga. The average number of children a woman is expected to have during her lifetime — the fertility rate, is 1.21 in Thailand and 3.13 in Tonga — 158.2% difference.

1960 vs 2023, the fertility rate has decreased by 80.8% in Thailand and by 53% in Tonga — in 1960, it was 6.33 and 6.65, respectively.

  • Thailand is ranked 173/196 by birth rate compared to 58/196 for Tonga.
  • The mean age for first-time mothers is 23.3 years in Thailand, compared to 24.9 years in Tonga.
  • The mean age at childbearing (for all the births, not just the first) is 28.6 in Thailand — it's 29.9 in Tonga.
  • Annual births per 1,000 women ages 15-19 (adolescent birth rate or teenage mother rate) is 26.1 in Thailand vs 24.8 in Tonga.
  • In Thailand, 24.1% of the population is composed of women of reproductive age (15-49), compared to 25.6% in Tonga.

Fertility rate in Thailand vs Tonga by year

Thailand
Tonga
1x
Year Fertility rate
Thailand Tonga
2023 1.21 3.13
2022 1.22 3.17
2021 1.23 3.2
2020 1.26 3.23
2019 1.29 3.27
2018 1.32 3.33
2017 1.36 3.39
2016 1.4 3.46
2015 1.45 3.54
2014 1.48 3.62
2013 1.53 3.7
2012 1.56 3.77
2011 1.57 3.83
2010 1.56 3.88
2009 1.57 3.95
2008 1.59 4.01
2007 1.62 4.09
2006 1.63 4.14
2005 1.64 4.2
2004 1.67 4.19
2003 1.67 4.18
2002 1.69 4.14
2001 1.71 4.13
2000 1.73 4.16
1999 1.77 4.23
1998 1.82 4.31
1997 1.85 4.38
1996 1.87 4.46
1995 1.89 4.56
1994 1.93 4.66
1993 1.97 4.73
1992 2.01 4.79
1991 2.04 4.85
1990 2.07 4.93
1989 2.14 5.01
1988 2.17 5.1
1987 2.26 5.19
1986 2.36 5.27
1985 2.45 5.34
1984 2.58 5.41
1983 2.76 5.45
1982 2.94 5.5
1981 3.13 5.55
1980 3.29 5.6
1979 3.45 5.65
1978 3.62 5.68
1977 3.87 5.7
1976 4.12 5.73
1975 4.36 5.75
1974 4.6 5.77
1973 4.85 5.8
1972 5.08 5.86
1971 5.25 5.96
1970 5.45 6.07
1969 5.7 6.17
1968 5.93 6.23
1967 6.08 6.29
1966 6.18 6.35
1965 6.26 6.41
1964 6.31 6.46
1963 6.34 6.52
1962 6.33 6.57
1961 6.32 6.61
1960 6.33 6.65

Data sources: World Bank | Health (1960–2023, retrieved 2026-04-06).

GeoRank.org/birth-rate/thailand/tonga | CC BY

According to the latest available data on birth rates, the fertility rate in Thailand was 1.21 children per woman in 2023, compared to 3.13 in Tonga in 2023. The replacement level is considered to be 2.1 children per woman.

Check Thailand vs Tonga population clock for a dynamic visualization of the changing population.

Natural population change by year

Thailand
Tonga
1x
Year Natural population change
Thailand Tonga
2023 -46,105 1,744
2022 -61,046 1,772
2021 57,382 1,773
2020 84,107 1,816
2019 116,867 1,841
2018 159,383 1,873
2017 194,695 1,912
2016 226,255 1,989
2015 266,362 2,064
2014 294,628 2,135
2013 325,059 2,199
2012 351,485 2,255
2011 365,670 2,298
2010 370,466 2,332
2009 382,636 2,358
2008 401,730 2,397
2007 425,362 2,423
2006 441,211 2,459
2005 456,378 2,495
2004 466,542 2,478
2003 488,003 2,448
2002 504,299 2,396
2001 524,230 2,358
2000 543,884 2,346
1999 578,073 2,352
1998 617,318 2,344
1997 644,834 2,332
1996 661,397 2,393
1995 682,703 2,476
1994 712,589 2,547
1993 737,696 2,594
1992 754,999 2,622
1991 760,508 2,637
1990 760,808 2,641
1989 774,563 2,644
1988 765,252 2,649
1987 774,498 2,646
1986 783,430 2,704
1985 776,935 2,762
1984 779,856 2,814
1983 794,239 2,840
1982 817,951 2,853
1981 839,297 2,882
1980 845,575 2,885
1979 843,434 2,884
1978 847,799 2,862
1977 871,232 2,822
1976 894,072 2,769
1975 911,980 2,709
1974 923,151 2,650
1973 933,540 2,617
1972 940,420 2,605
1971 936,215 2,611
1970 937,116 2,628
1969 948,314 2,632
1968 953,806 2,614
1967 944,980 2,603
1966 929,469 2,550
1965 909,000 2,498
1964 885,137 2,445
1963 860,728 2,394
1962 828,741 2,343
1961 801,140 2,284
1960 774,190 2,230

Data sources: World Bank | Health (1960–2023, retrieved 2026-04-06).

GeoRank.org/birth-rate/thailand/tonga | CC BY

The chart above illustrates the comparison of the absolute yearly changes in population resulting from births and deaths.

Excluding migration, the natural population change due to births and deaths from 2022 to 2023 was -0.06% in Thailand and +1.67% in Tonga.

For the past 10 years, the annual natural population change has been +0.18% in Thailand and +1.79% in Tonga.

Birth rate in Thailand vs Tonga by year

Thailand
Tonga

Annual births per 1,000 people

1x
Year Annual births per 1,000 people
Thailand Tonga
2023 8.24 23.1
2022 8.38 23.4
2021 8.54 23.5
2020 8.79 23.6
2019 9.06 23.8
2018 9.4 24.1
2017 9.77 24.5
2016 10.1 25.2
2015 10.6 25.8
2014 11 26.4
2013 11.4 26.9
2012 11.8 27.3
2011 11.9 27.7
2010 12 28
2009 12.2 28.4
2008 12.5 28.7
2007 12.9 29
2006 13.2 29.5
2005 13.5 30
2004 13.8 30
2003 14.1 29.9
2002 14.3 29.5
2001 14.7 29.4
2000 15 29.4
1999 15.6 29.6
1998 16.3 29.7
1997 16.8 29.8
1996 17.3 30.6
1995 17.7 31.4
1994 18.2 32.2
1993 18.7 32.7
1992 19.2 33
1991 19.5 33.2
1990 19.6 33.3
1989 20.1 33.4
1988 20.2 33.5
1987 20.7 33.7
1986 21.3 34.4
1985 21.7 34.9
1984 22.3 35.4
1983 23.3 35.6
1982 24.5 35.8
1981 25.5 36
1980 26.3 36.1
1979 26.8 36.1
1978 27.5 36
1977 28.6 35.7
1976 29.8 35.6
1975 31.1 35.8
1974 32.3 36
1973 33.5 36.5
1972 34.7 37
1971 35.6 37.8
1970 36.7 38.8
1969 38.3 39.6
1968 39.7 40.3
1967 40.8 41
1966 41.6 41.4
1965 42.2 41.9
1964 42.8 42.4
1963 43.2 42.9
1962 43.4 43.4
1961 43.6 43.9
1960 43.8 44.3

Data sources: World Bank | Health (1960–2023, retrieved 2026-04-06).

GeoRank.org/birth-rate/thailand/tonga | CC BY

The latest reported birth rate per 1,000 people in 2023 was 8.24 in Thailand and 23.1 in Tonga, compared with 43.8 and 44.3, respectively, in 1960.

Birth rate data compared

Thailand Tonga
Fertility rate 1.21 3.13
Fertility rate rank 179/196 54/196
Birth rate 8.24 23.1
Birth rate rank 173/196 58/196
Population change due to births and deaths -46,105 +1,744
Natural population change rank 183/196 137/196
Natural population change rate -0.06% +1.67%
Population growth -0.05% -0.4%
Population growth rank 168/197 183/197
Age at first childbirth 23.3 years 24.9 years
Average age at childbearing 28.6 years 29.9 years
Annual births per 1,000 women ages 15-19 23 25
Annual births per 1,000 women ages 20-29 57.4 144.7
Annual births per 1,000 women ages 30+ 9.94 40.5
Female of reproductive age (15-49), share of population 24.1% 25.6%
Any modern method of contraceptive prevalence among married women ages 15-49 70.7% 25.2%
Share of births attended by skilled health staff 99.1% 98.3%
Maternal mortality per live birth 0.03% 0.07%
Neonatal mortality rate (before reaching 28 days of age) 0.52% 0.43%
Infant mortality rate (before reaching 1 year of age) 0.8% 0.8%
Mortality rate before reaching 5 years of age 0.92% 0.99%
Life expectancy 77.1 years 73.4 years

Children 0-14 years as share of population

Thailand
Factual

UN forecast
Tonga
Factual

UN forecast
1x
Year Young
Thailand Tonga
2100 11.4% 17.5%
2099 11.4% 17.6%
2098 11.4% 17.7%
2097 11.4% 17.7%
2096 11.4% 17.9%
2095 11.3% 18%
2094 11.3% 18.1%
2093 11.3% 18.3%
2092 11.3% 18.4%
2091 11.3% 18.6%
2090 11.3% 18.8%
2089 11.3% 19%
2088 11.3% 19.3%
2087 11.3% 19.5%
2086 11.3% 19.7%
2085 11.3% 20%
2084 11.3% 20.2%
2083 11.3% 20.4%
2082 11.3% 20.7%
2081 11.3% 20.9%
2080 11.2% 21.1%
2079 11.2% 21.3%
2078 11.2% 21.5%
2077 11.2% 21.7%
2076 11.1% 21.9%
2075 11.1% 22%
2074 11.1% 22.2%
2073 11% 22.3%
2072 11% 22.4%
2071 11% 22.6%
2070 11% 22.7%
2069 10.9% 22.8%
2068 10.9% 23%
2067 10.9% 23.2%
2066 10.9% 23.4%
2065 10.9% 23.6%
2064 10.9% 23.8%
2063 11% 24.1%
2062 11% 24.4%
2061 11% 24.7%
2060 11.1% 25%
2059 11.1% 25.4%
2058 11.1% 25.8%
2057 11.2% 26.2%
2056 11.2% 26.6%
2055 11.3% 27%
2054 11.3% 27.4%
2053 11.4% 27.8%
2052 11.4% 28.2%
2051 11.5% 28.5%
2050 11.5% 28.9%
2049 11.6% 29.1%
2048 11.6% 29.4%
2047 11.6% 29.6%
2046 11.7% 29.7%
2045 11.7% 29.8%
2044 11.7% 29.9%
2043 11.7% 30%
2042 11.8% 30.1%
2041 11.8% 30.1%
2040 11.8% 30.2%
2039 11.9% 30.2%
2038 11.9% 30.3%
2037 12% 30.4%
2036 12% 30.6%
2035 12.1% 30.7%
2034 12.2% 30.9%
2033 12.4% 31.1%
2032 12.6% 31.4%
2031 12.8% 31.8%
2030 13% 32.3%
2029 13.3% 33%
2028 13.6% 33.6%
2027 13.9% 34.1%
2026 14.2% 34.6%
2025 14.6% 35.2%
2024 14.7% 35.4%
2023 15.1% 35.6%
2022 15.4% 35.6%
2021 15.8% 35.7%
2020 16.2% 35.8%
2019 16.6% 36%
2018 16.9% 36.2%
2017 17.3% 36.4%
2016 17.7% 36.5%
2015 18.1% 36.7%
2014 18.5% 36.9%
2013 18.8% 37.1%
2012 19.2% 37.2%
2011 19.7% 37.4%
2010 20.1% 37.6%
2009 20.6% 37.8%
2008 20.9% 38%
2007 21.3% 38.3%
2006 21.7% 38.3%
2005 22.2% 38.3%
2004 22.6% 38.2%
2003 23% 38.1%
2002 23.4% 38.1%
2001 23.9% 38.2%
2000 24.4% 38.3%
1999 24.9% 38.6%
1998 25.4% 38.9%
1997 25.9% 39.3%
1996 26.4% 39.7%
1995 26.9% 39.9%
1994 27.4% 40.1%
1993 28% 40.3%
1992 28.5% 40.5%
1991 29.2% 40.6%
1990 30% 40.8%
1989 30.7% 40.9%
1988 31.5% 41.2%
1987 32.4% 41.5%
1986 33.2% 41.7%
1985 34.1% 42%
1984 35.1% 42.4%
1983 36% 42.9%
1982 37% 43.4%
1981 37.8% 43.9%
1980 38.7% 44.3%
1979 39.5% 44.8%
1978 40.3% 45.3%
1977 41.1% 45.8%
1976 41.8% 46.1%
1975 42.4% 46.2%
1974 43% 46.2%
1973 43.5% 46.2%
1972 44% 46.3%
1971 44.4% 46.4%
1970 44.8% 46.4%
1969 45% 46.3%
1968 45.2% 46.2%
1967 45.3% 46%
1966 45.4% 45.9%
1965 45.4% 45.9%
1964 45.3% 45.9%
1963 45.1% 45.9%
1962 44.8% 45.8%
1961 44.6% 45.7%
1960 44.3% 45.7%

Data sources: World Bank | Health (1960–2024, retrieved 2026-04-06); United Nations | World Population Prospects (2025–2100, retrieved 2026-03-10).

GeoRank.org/birth-rate/thailand/tonga | CC BY

Children aged 0-14 make up 14.7% of the population in Thailand and 35.4% in Tonga in 2024, compared to 30% and 40.8% respectively in 1990.

Demographics of Thailand and Tonga compared.

Fertility rates around the globe

1x

Data sources: World Bank | Health (1960–2023, retrieved 2026-04-06).

GeoRank.org/birth-rate/thailand/tonga | CC BY

Maternal mortality chart: Thailand vs Tonga

Thailand
Tonga
1x
Year Maternal mortality per 100K births
Thailand Tonga
2023 34 67
2022 112 72
2021 38 76
2020 36 74
2019 34 73
2018 34 74
2017 34 77
2016 34 78
2015 34 79
2014 34 80
2013 35 80
2012 36 83
2011 37 84
2010 37 85
2009 37 91
2008 37 88
2007 38 88
2006 38 89
2005 40 92
2004 44 92
2003 42 95
2002 44 98
2001 47 98
2000 49 100
1999 48 99
1998 47 104
1997 48 111
1996 49 113
1995 52 117
1994 54 123
1993 57 127
1992 58 129
1991 59 134
1990 60 138
1989 64 139
1988 67 145
1987 72 147
1986 78 149
1985 88 148

Data sources: World Bank | Gender (1985–2023, retrieved 2026-04-06).

GeoRank.org/birth-rate/thailand/tonga | CC BY

The maternal mortality rate, which is the probability of dying during childbirth or within 42 days of pregnancy termination, is 34 deaths per 100,000 live births in Thailand, compared to 67 deaths in Tonga.

Under-five mortality rates

Thailand
Tonga

Probability that a newborn baby will die before reaching age five

1x
Year Under 5 mortality rate
Thailand Tonga
2023 0.92% 0.99%
2022 0.95% 1.02%
2021 0.98% 1.05%
2020 1.01% 1.08%
2019 1.04% 1.1%
2018 1.08% 1.12%
2017 1.11% 1.15%
2016 1.15% 1.17%
2015 1.19% 1.19%
2014 1.23% 1.22%
2013 1.27% 1.24%
2012 1.32% 1.26%
2011 1.37% 1.29%
2010 1.42% 1.31%
2009 1.47% 1.34%
2008 1.53% 1.37%
2007 1.59% 1.41%
2006 1.66% 1.44%
2005 1.73% 1.48%
2004 1.81% 1.52%
2003 1.89% 1.56%
2002 1.98% 1.61%
2001 2.08% 1.65%
2000 2.18% 1.7%
1999 2.29% 1.74%
1998 2.41% 1.78%
1997 2.53% 1.81%
1996 2.67% 1.85%
1995 2.81% 1.89%
1994 2.96% 1.94%
1993 3.12% 2%
1992 3.3% 2.06%
1991 3.49% 2.14%
1990 3.69% 2.21%
1989 3.91% 2.29%
1988 4.12% 2.37%
1987 4.34% 2.44%
1986 4.57% 2.51%
1985 4.8% 2.57%
1984 5.03% 2.63%
1983 5.28% 2.7%
1982 5.53% 2.78%
1981 5.79% 2.87%
1980 6.07% 2.97%
1979 6.36% 3.09%
1978 6.67% 3.22%
1977 7% 3.37%
1976 7.35% 3.53%
1975 7.73% 3.71%
1974 8.14% 3.9%
1973 8.56% 4.11%
1972 9.01% 4.35%
1971 9.47% 4.61%
1970 9.95% 4.91%
1969 10.4% 5.25%
1968 10.9% 5.63%
1967 11.4% 6.03%
1966 11.8% 6.45%
1965 12.3% 6.89%
1964 12.8% 7.35%
1963 13.2% 7.83%
1962 13.7% -
1961 14.2% -
1960 14.7% -

Data sources: World Bank | Health (1960–2023, retrieved 2026-04-06).

GeoRank.org/birth-rate/thailand/tonga | CC BY

The chance that a newborn baby will die before reaching age five is 0.92% in Thailand and 0.99% in Tonga. Above is a chart with historical data on under-five mortality rates.

Compare countries by 7 more topics

Help us show the world through your eyes

Share a photo of your city and help others discover what it looks like to live there. Your contribution makes our data come alive.

Data sources:

  1. World Bank | Health (1960–2024, retrieved 2026-04-06)
  2. United Nations | World Population Prospects (2025–2100, retrieved 2026-03-10)
  3. Central Intelligence Agency (CIA) (2025, retrieved 2026-02-20)

Creative Commons Attribution (CC BY) — you’re free to copy, share, remix, adapt, and use even commercially as long as you give appropriate credit and clearly indicate if you made changes. Other sources may be subject to different license terms.