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Tonga birth & fertility rate charts by year

Updated on by Georank team

Tonga has a birth rate of 23.1 (annual births per 1,000 people) and a fertility rate of 3.13 (the average amount of children a woman would have during her lifetime).

In 1960, the fertility rate in Tonga was 6.65 children per woman — 2.13 times higher than in 2023.

Tonga birth rate statistics:

  • Tonga is ranked 58/196 by birth rate now and was ranked 92/194 in 1960.
  • The mean age at first birth in Tonga is 24.9 — it was 24.9 in 2017.
  • The mean age at childbearing (for all the births, not just the first) is 29.9, a change from 30.9 in 1990.
  • Annual births per 1,000 women ages 15-19 (adolescent birth rate or teenage mother rate) changed from 56.8 in 1960 to 24.8 in 2023.
  • 25.6% of the population in 2024 is composed of women of reproductive age (15-49), a change from 21.9% in 1960.
  • Excluding migration, the natural population change due to births and deaths from 2022 to 2023 was 1.67% — 1,744 more people were born than died.

Birth rates in Tonga compared to world average

Tonga World
Fertility rate 3.13 2.2
Birth rate 23.1 16.3
Birth rate rank 58/196 N/A
Age at first childbirth 24.9 years 23.1 years
Average age at childbearing 29.9 years 28.3 years
Annual births per 1,000 women ages 15-19 25.1 37.6
Annual births per 1,000 women ages 20-29 145 120.4
Annual births per 1,000 women ages 30+ 41.6 22
Female of reproductive age (15-49), share of population 25.6% 24.4%
Any modern method of contraceptive prevalence among married women ages 15-49 25.2% 54.1%
Share of births attended by skilled health staff 98.3% 83.3%
Maternal mortality per live birth 0.07% 0.2%
Neonatal mortality rate (before reaching 28 days of age) 0.43% 1.73%
Infant mortality rate (before reaching 1 year of age) 0.8% 2.71%
Mortality rate before reaching 5 years of age, per 1,000 live births 0.99% 2.49%
Population change due to births and deaths +1,744 +70,600,901
Natural population change rank 137/196 N/A
Natural population change rate +1.67% +0.88%
Population growth -0.4% +0.96%
Population growth rank 181/197 N/A
Life expectancy 73.2 years 73.5 years

Fertility rate in Tonga chart

According to the latest birth rate data available, the fertility rate in Tonga is 3.13, which is above the replacement level of 2.1 children per woman. In 1993, the fertility rate was 4.73 — a -33.8% decline in 30 years.

Check population clock for a dynamic visualization of the changing population.

The chart below showcases the historical changes in birth rates.

Tonga
Factual

UN forecast
World
Factual

UN forecast

Births per woman

Year Fertility rate
Tonga World
1960 6.65 4.69
1961 6.61 4.56
1962 6.57 5.02
1963 6.52 5.31
1964 6.46 5.13
1965 6.41 5.08
1966 6.35 4.97
1967 6.29 4.87
1968 6.23 4.98
1969 6.17 4.88
1970 6.07 4.84
1971 5.96 4.69
1972 5.86 4.55
1973 5.8 4.42
1974 5.77 4.26
1975 5.75 4.07
1976 5.73 3.97
1977 5.7 3.84
1978 5.68 3.77
1979 5.65 3.76
1980 5.6 3.73
1981 5.55 3.71
1982 5.5 3.72
1983 5.45 3.59
1984 5.41 3.57
1985 5.34 3.53
1986 5.27 3.51
1987 5.19 3.48
1988 5.1 3.39
1989 5.01 3.35
1990 4.93 3.31
1991 4.85 3.13
1992 4.79 3.04
1993 4.73 2.97
1994 4.66 2.92
1995 4.56 2.87
1996 4.46 2.82
1997 4.38 2.78
1998 4.31 2.75
1999 4.23 2.72
2000 4.16 2.73
2001 4.13 2.69
2002 4.14 2.66
2003 4.18 2.64
2004 4.19 2.63
2005 4.2 2.61
2006 4.14 2.61
2007 4.09 2.6
2008 4.01 2.6
2009 3.95 2.59
2010 3.88 2.57
2011 3.83 2.55
2012 3.77 2.56
2013 3.7 2.53
2014 3.62 2.52
2015 3.54 2.49
2016 3.46 2.49
2017 3.39 2.46
2018 3.33 2.39
2019 3.27 2.35
2020 3.23 2.28
2021 3.2 2.25
2022 3.17 2.22
2023 3.13 2.2
2024 3.1 2.19
2025 3.07 2.18
2026 3.04 2.18
2027 3 2.17
2028 2.97 2.16
2029 2.95 2.15
2030 2.91 2.14
2031 2.89 2.13
2032 2.85 2.12
2033 2.82 2.12
2034 2.8 2.11
2035 2.77 2.1
2036 2.75 2.09
2037 2.72 2.09
2038 2.7 2.08
2039 2.68 2.08
2040 2.65 2.08
2041 2.63 2.07
2042 2.61 2.07
2043 2.59 2.07
2044 2.56 2.07
2045 2.54 2.06
2046 2.52 2.06
2047 2.5 2.06
2048 2.49 2.05
2049 2.47 2.05
2050 2.45 2.05

Birth rates by women ages chart

In 2025, of all live births 6.13% were to women under 20 years old, 54% to women ages 20-29, and 39.8% to women ages 30 and above. In comparison, the percentages in 1990 were 5.35%, 55.5%, and 39.2% for the same age groups respectively. A chart displaying the historical birth rates in Tonga by maternal age is provided below.

Annual births per 1,000 women ages

15-19
20-29
30+
Year Annual births per 1,000 women
Total per 1,000 women 15-19 20-29 30+
1960 90.2 56.9 295.5 129.8
1961 89.4 55.6 294.1 129.7
1962 88.6 54.1 292.1 129.5
1963 87.6 53.6 289.3 128.4
1964 86.6 53.1 287 127.1
1965 85.6 53.4 283.7 125.6
1966 84.7 53 280.1 123.9
1967 84 53.8 279.4 122.9
1968 82.4 54.4 276.2 120.7
1969 81 54.4 273.3 118.7
1970 79.2 54.7 269.2 115.7
1971 77.2 55 263.2 112.4
1972 75.5 55.2 258 109.5
1973 74.4 57.1 253.5 107.1
1974 73.4 58.5 249.9 104.6
1975 72.8 58.7 248 103.4
1976 72.3 58.9 245.9 102.4
1977 72.4 60.3 244.1 101.1
1978 72.9 60.7 243.3 99.7
1979 73.1 60.6 242.1 98.1
1980 72.9 58.1 241.1 96.6
1981 72.7 55.8 239.9 95
1982 72.2 53.5 238 93.4
1983 71.8 51 236.3 92.1
1984 71.3 49.2 234.2 91.3
1985 70.2 45.6 230.6 90.1
1986 69 43 225.6 88.4
1987 67.7 40.9 218.2 86.1
1988 67.4 38.1 214.8 84.6
1989 67.1 35.5 212.5 82.9
1990 67.1 32.8 211.1 81.8
1991 66.9 30.9 210.2 81
1992 66.6 29.1 209.5 80.6
1993 66 27.3 208.1 79.8
1994 65 24.3 206.6 79.1
1995 63.6 23.5 203.1 77.4
1996 61.9 22 198.8 75.5
1997 60.4 21.9 192.9 73.8
1998 60.2 23.6 188 74.3
1999 59.9 25.9 183.7 74.3
2000 59.4 24.2 179.2 75.1
2001 59.3 23.1 176.5 76.1
2002 59.7 22.3 175.7 77.6
2003 60.3 21.7 179.9 77.6
2004 60.5 22.7 183 76.6
2005 60.6 23.2 186.4 75.2
2006 59.5 23 185.7 72.9
2007 58.5 23.1 185 70
2008 57.7 23.2 185.3 67.6
2009 56.9 23.4 185.3 65.4
2010 56 23.3 184.3 63.4
2011 55.2 23.6 182.6 61.7
2012 54.3 24.7 180 60.4
2013 53.4 25.8 176.6 59
2014 52.3 26.4 173.1 57.7
2015 51.1 26.3 169.3 56.1
2016 49.8 25.2 165.9 54.6
2017 48.2 25.8 161.3 52.6
2018 47.2 25.7 158.5 50.8
2019 46.4 25.3 156 49.4
2020 45.8 25.2 153.7 48.2
2021 45.3 24.9 152.2 47
2022 44.7 25.1 150.4 45.6
2023 44 24.9 147.8 44
2024 43.6 25.1 146.6 42.8
2025 43.2 25.1 145 41.6

Children 0-14 years as share of population

Tonga
Factual

UN forecast
World
Factual

UN forecast
Year Children 0-14 as share of population
Tonga World
1960 45.7% 37.4%
1961 45.7% 37.5%
1962 45.8% 37.6%
1963 45.9% 37.8%
1964 45.9% 38%
1965 45.9% 38%
1966 45.9% 38%
1967 46% 38%
1968 46.2% 37.9%
1969 46.3% 37.8%
1970 46.4% 37.7%
1971 46.4% 37.6%
1972 46.3% 37.5%
1973 46.2% 37.3%
1974 46.2% 37.2%
1975 46.2% 37.1%
1976 46.1% 36.9%
1977 45.8% 36.7%
1978 45.3% 36.3%
1979 44.8% 35.9%
1980 44.3% 35.5%
1981 43.9% 35.2%
1982 43.4% 34.9%
1983 42.9% 34.6%
1984 42.4% 34.3%
1985 42% 34%
1986 41.7% 33.8%
1987 41.5% 33.6%
1988 41.2% 33.4%
1989 40.9% 33.2%
1990 40.8% 33%
1991 40.6% 32.9%
1992 40.5% 32.7%
1993 40.3% 32.5%
1994 40.1% 32.3%
1995 39.9% 32.1%
1996 39.7% 31.8%
1997 39.3% 31.5%
1998 38.9% 31.1%
1999 38.6% 30.8%
2000 38.3% 30.4%
2001 38.2% 30%
2002 38.1% 29.6%
2003 38.1% 29.2%
2004 38.2% 28.8%
2005 38.3% 28.5%
2006 38.3% 28.1%
2007 38.3% 27.9%
2008 38% 27.6%
2009 37.8% 27.5%
2010 37.6% 27.3%
2011 37.4% 27.1%
2012 37.2% 27%
2013 37.1% 26.9%
2014 36.9% 26.8%
2015 36.7% 26.6%
2016 36.5% 26.5%
2017 36.4% 26.4%
2018 36.2% 26.2%
2019 36% 26%
2020 35.8% 25.8%
2021 35.7% 25.6%
2022 35.6% 25.3%
2023 35.6% 25%
2024 35.4% 24.7%
2025 34.9% 24.4%
2026 34.4% 24.1%
2027 33.8% 23.8%
2028 33.3% 23.4%
2029 32.6% 23.1%
2030 32% 22.8%
2031 31.6% 22.6%
2032 31.2% 22.3%
2033 31% 22.1%
2034 30.8% 21.9%
2035 30.7% 21.7%
2036 30.5% 21.6%
2037 30.4% 21.5%
2038 30.3% 21.4%
2039 30.2% 21.3%
2040 30.1% 21.2%
2041 30.1% 21.1%
2042 30% 21%
2043 30% 21%
2044 29.9% 20.9%
2045 29.8% 20.8%
2046 29.6% 20.7%
2047 29.5% 20.7%
2048 29.2% 20.6%
2049 29% 20.5%
2050 28.7% 20.4%

The share of children aged 0-14 in Tonga was 45.7% in 1960, 40.3% in 1993, and 35.4% as of the latest data in 2025.

More about the demographics of Tonga.

Natural population change by year

For the past 10 years, the natural population change in Tonga, excluding migration, has been +1.79% annually. On average, 1,891 more people were born each year than died.

Population change due to births and deaths
Year Population change due to births and deaths
Tonga
1960 2,230
1961 2,284
1962 2,343
1963 2,394
1964 2,445
1965 2,498
1966 2,550
1967 2,603
1968 2,614
1969 2,632
1970 2,628
1971 2,611
1972 2,605
1973 2,617
1974 2,650
1975 2,709
1976 2,769
1977 2,822
1978 2,862
1979 2,884
1980 2,885
1981 2,882
1982 2,853
1983 2,840
1984 2,814
1985 2,762
1986 2,704
1987 2,646
1988 2,649
1989 2,644
1990 2,641
1991 2,637
1992 2,622
1993 2,594
1994 2,547
1995 2,476
1996 2,393
1997 2,332
1998 2,344
1999 2,352
2000 2,346
2001 2,358
2002 2,396
2003 2,448
2004 2,478
2005 2,495
2006 2,459
2007 2,423
2008 2,397
2009 2,358
2010 2,332
2011 2,298
2012 2,255
2013 2,199
2014 2,135
2015 2,064
2016 1,989
2017 1,912
2018 1,873
2019 1,841
2020 1,816
2021 1,773
2022 1,772
2023 1,744

Fertility rates around the globe

Fertility rate

Maternal mortality chart

The maternal mortality rate in Tonga was 67 deaths per 100,000 live births in 2023 — a 0.07% chance of dying during childbirth or within 42 days of pregnancy termination. This is a -33% decrease compared to the year 2000.

Tonga
World's average
Year Maternal mortality per 100K births
Tonga World
1985 148 460
1986 149 438
1987 147 429
1988 145 414
1989 139 401
1990 138 391
1991 134 395
1992 129 395
1993 127 389
1994 123 382
1995 117 371
1996 113 366
1997 111 358
1998 104 360
1999 99 340
2000 100 328
2001 98 321
2002 98 311
2003 95 301
2004 92 291
2005 92 283
2006 89 276
2007 88 269
2008 88 264
2009 91 258
2010 85 253
2011 84 247
2012 83 239
2013 80 235
2014 80 231
2015 79 228
2016 78 220
2017 77 215
2018 74 211
2019 73 207
2020 74 211
2021 76 242
2022 72 203
2023 67 197

Under-five mortality rate chart

The under-5 mortality rate in Tonga was 9.9 deaths per 1,000 live births in 2023 — a 0.99% chance that a newborn baby will die before reaching age five. This is down from 17 deaths per 1,000 live births in 2000.

Tonga
World's average

Probability that a newborn baby will die before reaching age five

Year Mortality rate before reaching 5 years of age, per 1,000 live births
Tonga World
1960 - 18.5%
1961 - 18.1%
1962 - 17.8%
1963 7.83% 17.5%
1964 7.35% 17.7%
1965 6.89% 17.5%
1966 6.45% 17.3%
1967 6.03% 17%
1968 5.63% 16.5%
1969 5.25% 15.5%
1970 4.91% 15.2%
1971 4.61% 15.1%
1972 4.35% 14.4%
1973 4.11% 14.1%
1974 3.9% 13.7%
1975 3.71% 13.4%
1976 3.53% 13%
1977 3.37% 12.5%
1978 3.22% 12.1%
1979 3.09% 11.7%
1980 2.97% 11.4%
1981 2.87% 11%
1982 2.78% 10.8%
1983 2.7% 10.6%
1984 2.63% 10.4%
1985 2.57% 10.1%
1986 2.51% 9.81%
1987 2.44% 9.47%
1988 2.37% 9.31%
1989 2.29% 9.02%
1990 2.21% 8.81%
1991 2.14% 8.66%
1992 2.06% 8.46%
1993 2% 8.19%
1994 1.94% 7.98%
1995 1.89% 7.76%
1996 1.85% 7.52%
1997 1.81% 7.28%
1998 1.78% 7.05%
1999 1.74% 6.76%
2000 1.7% 6.48%
2001 1.65% 6.21%
2002 1.61% 5.94%
2003 1.56% 5.65%
2004 1.52% 5.43%
2005 1.48% 5.16%
2006 1.44% 4.92%
2007 1.41% 4.7%
2008 1.37% 4.5%
2009 1.34% 4.31%
2010 1.31% 4.11%
2011 1.29% 3.97%
2012 1.26% 3.77%
2013 1.24% 3.61%
2014 1.22% 3.48%
2015 1.19% 3.35%
2016 1.17% 3.23%
2017 1.15% 3.11%
2018 1.12% 2.97%
2019 1.1% 2.86%
2020 1.08% 2.75%
2021 1.05% 2.66%
2022 1.02% 2.59%
2023 0.99% 2.49%

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