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Fertility & birth rates in Grenada and Tonga

Updated on by Georank team

Grenada has an annual birth rate of 11.7 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 1.49 in Grenada and 3.13 in Tonga — 110.4% difference.

1960 vs 2023, the fertility rate has decreased by 77.9% in Grenada and by 53% in Tonga — in 1960, it was 6.74 and 6.65, respectively.

  • Grenada is ranked 120/196 by birth rate compared to 58/196 for Tonga.
  • The mean age at childbearing (for all the births, not just the first) is 28.7 in Grenada — it's 29.9 in Tonga.
  • Annual births per 1,000 women ages 15-19 (adolescent birth rate or teenage mother rate) is 29.1 in Grenada vs 24.8 in Tonga.
  • In Grenada, 25.9% of the population is composed of women of reproductive age (15-49), compared to 25.6% in Tonga.

Fertility rate in Grenada vs Tonga by year

Grenada
Tonga
1x
Year Fertility rate
Grenada Tonga
2023 1.49 3.13
2022 1.5 3.17
2021 1.52 3.2
2020 1.53 3.23
2019 1.54 3.27
2018 1.53 3.33
2017 1.44 3.39
2016 1.62 3.46
2015 1.72 3.54
2014 1.8 3.62
2013 1.91 3.7
2012 1.97 3.77
2011 2.01 3.83
2010 2.04 3.88
2009 2.08 3.95
2008 2.12 4.01
2007 2.15 4.09
2006 2.19 4.14
2005 2.24 4.2
2004 2.29 4.19
2003 2.33 4.18
2002 2.38 4.14
2001 2.42 4.13
2000 2.44 4.16
1999 2.39 4.23
1998 2.49 4.31
1997 2.8 4.38
1996 2.85 4.46
1995 2.82 4.56
1994 2.79 4.66
1993 2.81 4.73
1992 2.97 4.79
1991 3.11 4.85
1990 3.06 4.93
1989 3.23 5.01
1988 3.19 5.1
1987 3.58 5.19
1986 3.58 5.27
1985 3.48 5.34
1984 3.22 5.41
1983 3.31 5.45
1982 3.15 5.5
1981 2.99 5.55
1980 3.3 5.6
1979 3.34 5.65
1978 3.35 5.68
1977 3.46 5.7
1976 3.6 5.73
1975 3.75 5.75
1974 3.92 5.77
1973 4.05 5.8
1972 4.18 5.86
1971 4.31 5.96
1970 4.46 6.07
1969 4.69 6.17
1968 4.84 6.23
1967 5.04 6.29
1966 5.3 6.35
1965 5.6 6.41
1964 5.91 6.46
1963 6.2 6.52
1962 6.44 6.57
1961 6.63 6.61
1960 6.74 6.65

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

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

According to the latest available data on birth rates, the fertility rate in Grenada was 1.49 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 Grenada vs Tonga population clock for a dynamic visualization of the changing population.

Natural population change by year

Grenada
Tonga
1x
Year Natural population change
Grenada Tonga
2023 334 1,744
2022 371 1,772
2021 343 1,773
2020 433 1,816
2019 462 1,841
2018 470 1,873
2017 402 1,912
2016 579 1,989
2015 684 2,064
2014 772 2,135
2013 878 2,199
2012 925 2,255
2011 954 2,298
2010 989 2,332
2009 1,024 2,358
2008 1,046 2,397
2007 1,059 2,423
2006 1,068 2,459
2005 1,075 2,495
2004 1,034 2,478
2003 1,074 2,448
2002 1,077 2,396
2001 1,082 2,358
2000 1,105 2,346
1999 1,092 2,352
1998 1,204 2,344
1997 1,480 2,332
1996 1,559 2,393
1995 1,580 2,476
1994 1,596 2,547
1993 1,641 2,594
1992 1,811 2,622
1991 1,953 2,637
1990 1,931 2,641
1989 2,084 2,644
1988 2,044 2,649
1987 2,345 2,646
1986 2,324 2,704
1985 2,215 2,762
1984 1,975 2,814
1983 1,817 2,840
1982 1,798 2,853
1981 1,625 2,882
1980 1,840 2,885
1979 1,871 2,884
1978 1,882 2,862
1977 1,974 2,822
1976 2,092 2,769
1975 2,224 2,709
1974 2,360 2,650
1973 2,464 2,617
1972 2,578 2,605
1971 2,705 2,611
1970 2,793 2,628
1969 2,948 2,632
1968 3,040 2,614
1967 3,158 2,603
1966 3,278 2,550
1965 3,399 2,498
1964 3,508 2,445
1963 3,601 2,394
1962 3,674 2,343
1961 3,703 2,284
1960 3,678 2,230

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

GeoRank.org/birth-rate/grenada/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 +0.29% in Grenada and +1.67% in Tonga.

For the past 10 years, the annual natural population change has been +0.42% in Grenada and +1.79% in Tonga.

Birth rate in Grenada vs Tonga by year

Grenada
Tonga

Annual births per 1,000 people

1x
Year Annual births per 1,000 people
Grenada Tonga
2023 11.7 23.1
2022 11.9 23.4
2021 12.1 23.5
2020 12.3 23.6
2019 12.5 23.8
2018 12.4 24.1
2017 11.6 24.5
2016 13.1 25.2
2015 13.9 25.8
2014 14.5 26.4
2013 15.4 26.9
2012 15.8 27.3
2011 16 27.7
2010 16.3 28
2009 16.5 28.4
2008 16.7 28.7
2007 16.8 29
2006 16.9 29.5
2005 17 30
2004 17.1 30
2003 17.1 29.9
2002 17.2 29.5
2001 17.3 29.4
2000 17.5 29.4
1999 17.4 29.6
1998 18.5 29.7
1997 21.2 29.8
1996 22.1 30.6
1995 22.4 31.4
1994 22.8 32.2
1993 23.4 32.7
1992 25.3 33
1991 26.9 33.2
1990 26.9 33.3
1989 28.6 33.4
1988 28.4 33.5
1987 31.7 33.7
1986 31.7 34.4
1985 30.7 34.9
1984 28.3 35.4
1983 28.6 35.6
1982 26.7 35.8
1981 24.8 36
1980 26.9 36.1
1979 26.9 36.1
1978 26.6 36
1977 27.1 35.7
1976 28 35.6
1975 29 35.8
1974 30.2 36
1973 31.2 36.5
1972 32.3 37
1971 33.7 37.8
1970 34.7 38.8
1969 36.4 39.6
1968 37.4 40.3
1967 38.9 41
1966 40.6 41.4
1965 42.4 41.9
1964 44.1 42.4
1963 45.7 42.9
1962 47 43.4
1961 48.1 43.9
1960 48.8 44.3

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

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

The latest reported birth rate per 1,000 people in 2023 was 11.7 in Grenada and 23.1 in Tonga, compared with 48.8 and 44.3, respectively, in 1960.

Birth rate data compared

Grenada Tonga
Fertility rate 1.49 3.13
Fertility rate rank 148/196 54/196
Birth rate 11.7 23.1
Birth rate rank 120/196 58/196
Population change due to births and deaths +334 +1,744
Natural population change rank 148/196 137/196
Natural population change rate +0.29% +1.67%
Population growth +0.11% -0.4%
Population growth rank 159/197 183/197
Age at first childbirth n/a 24.9 years
Average age at childbearing 28.7 years 29.9 years
Annual births per 1,000 women ages 15-19 27.8 25
Annual births per 1,000 women ages 20-29 69.1 144.7
Annual births per 1,000 women ages 30+ 16.9 40.5
Female of reproductive age (15-49), share of population 25.9% 25.6%
Any modern method of contraceptive prevalence among married women ages 15-49 27.4% 25.2%
Share of births attended by skilled health staff 100% 98.3%
Maternal mortality per live birth 0.05% 0.07%
Neonatal mortality rate (before reaching 28 days of age) 1.24% 0.43%
Infant mortality rate (before reaching 1 year of age) 1.67% 0.8%
Mortality rate before reaching 5 years of age 1.83% 0.99%
Life expectancy 75.7 years 73.4 years

Children 0-14 years as share of population

Grenada
Factual

UN forecast
Tonga
Factual

UN forecast
1x
Year Young
Grenada Tonga
2100 11.5% 17.5%
2099 11.5% 17.6%
2098 11.5% 17.7%
2097 11.5% 17.7%
2096 11.5% 17.9%
2095 11.5% 18%
2094 11.5% 18.1%
2093 11.5% 18.3%
2092 11.5% 18.4%
2091 11.5% 18.6%
2090 11.5% 18.8%
2089 11.5% 19%
2088 11.6% 19.3%
2087 11.6% 19.5%
2086 11.6% 19.7%
2085 11.6% 20%
2084 11.6% 20.2%
2083 11.6% 20.4%
2082 11.6% 20.7%
2081 11.6% 20.9%
2080 11.6% 21.1%
2079 11.7% 21.3%
2078 11.7% 21.5%
2077 11.7% 21.7%
2076 11.7% 21.9%
2075 11.7% 22%
2074 11.8% 22.2%
2073 11.8% 22.3%
2072 11.8% 22.4%
2071 11.9% 22.6%
2070 11.9% 22.7%
2069 12% 22.8%
2068 12% 23%
2067 12.1% 23.2%
2066 12.2% 23.4%
2065 12.3% 23.6%
2064 12.3% 23.8%
2063 12.4% 24.1%
2062 12.5% 24.4%
2061 12.6% 24.7%
2060 12.7% 25%
2059 12.8% 25.4%
2058 13% 25.8%
2057 13.1% 26.2%
2056 13.2% 26.6%
2055 13.3% 27%
2054 13.4% 27.4%
2053 13.5% 27.8%
2052 13.6% 28.2%
2051 13.7% 28.5%
2050 13.9% 28.9%
2049 14% 29.1%
2048 14.1% 29.4%
2047 14.2% 29.6%
2046 14.3% 29.7%
2045 14.4% 29.8%
2044 14.6% 29.9%
2043 14.7% 30%
2042 14.8% 30.1%
2041 15% 30.1%
2040 15.1% 30.2%
2039 15.3% 30.2%
2038 15.5% 30.3%
2037 15.7% 30.4%
2036 15.9% 30.6%
2035 16.1% 30.7%
2034 16.3% 30.9%
2033 16.5% 31.1%
2032 16.6% 31.4%
2031 16.8% 31.8%
2030 17.1% 32.3%
2029 17.5% 33%
2028 17.9% 33.6%
2027 18.3% 34.1%
2026 18.8% 34.6%
2025 19.2% 35.2%
2024 19.4% 35.4%
2023 19.8% 35.6%
2022 20.2% 35.6%
2021 20.6% 35.7%
2020 20.9% 35.8%
2019 21.2% 36%
2018 21.5% 36.2%
2017 21.8% 36.4%
2016 22.1% 36.5%
2015 22.4% 36.7%
2014 22.7% 36.9%
2013 23% 37.1%
2012 23.3% 37.2%
2011 23.6% 37.4%
2010 24% 37.6%
2009 24.6% 37.8%
2008 25.2% 38%
2007 25.9% 38.3%
2006 26.7% 38.3%
2005 27.7% 38.3%
2004 28.7% 38.2%
2003 29.8% 38.1%
2002 31% 38.1%
2001 32.1% 38.2%
2000 32.9% 38.3%
1999 33.3% 38.6%
1998 33.5% 38.9%
1997 33.6% 39.3%
1996 33.6% 39.7%
1995 33.5% 39.9%
1994 33.3% 40.1%
1993 33.1% 40.3%
1992 32.9% 40.5%
1991 32.8% 40.6%
1990 32.8% 40.8%
1989 33% 40.9%
1988 33.2% 41.2%
1987 33.6% 41.5%
1986 34.1% 41.7%
1985 34.8% 42%
1984 35.6% 42.4%
1983 36.5% 42.9%
1982 37.5% 43.4%
1981 38.6% 43.9%
1980 39.4% 44.3%
1979 40% 44.8%
1978 40.8% 45.3%
1977 41.5% 45.8%
1976 42.3% 46.1%
1975 43.1% 46.2%
1974 43.9% 46.2%
1973 44.7% 46.2%
1972 45.5% 46.3%
1971 46.2% 46.4%
1970 46.8% 46.4%
1969 47.2% 46.3%
1968 47.5% 46.2%
1967 47.6% 46%
1966 47.5% 45.9%
1965 47% 45.9%
1964 46.9% 45.9%
1963 47.1% 45.9%
1962 47.2% 45.8%
1961 47.2% 45.7%
1960 47.3% 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/grenada/tonga | CC BY

Children aged 0-14 make up 19.4% of the population in Grenada and 35.4% in Tonga in 2024, compared to 32.8% and 40.8% respectively in 1990.

Demographics of Grenada and Tonga compared.

Fertility rates around the globe

1x

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

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

Maternal mortality chart: Grenada vs Tonga

Grenada
Tonga
1x
Year Maternal mortality per 100K births
Grenada Tonga
2023 48 67
2022 50 72
2021 52 76
2020 51 74
2019 48 73
2018 46 74
2017 45 77
2016 44 78
2015 46 79
2014 45 80
2013 44 80
2012 44 83
2011 44 84
2010 43 85
2009 41 91
2008 41 88
2007 40 88
2006 39 89
2005 40 92
2004 48 92
2003 42 95
2002 42 98
2001 45 98
2000 46 100
1999 48 99
1998 50 104
1997 50 111
1996 51 113
1995 54 117
1994 55 123
1993 53 127
1992 56 129
1991 59 134
1990 61 138
1989 64 139
1988 61 145
1987 68 147
1986 68 149
1985 71 148

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

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

The maternal mortality rate, which is the probability of dying during childbirth or within 42 days of pregnancy termination, is 48 deaths per 100,000 live births in Grenada, compared to 67 deaths in Tonga.

Under-five mortality rates

Grenada
Tonga

Probability that a newborn baby will die before reaching age five

1x
Year Under 5 mortality rate
Grenada Tonga
2023 1.83% 0.99%
2022 1.85% 1.02%
2021 1.87% 1.05%
2020 1.87% 1.08%
2019 1.85% 1.1%
2018 1.83% 1.12%
2017 1.81% 1.15%
2016 1.79% 1.17%
2015 1.75% 1.19%
2014 1.72% 1.22%
2013 1.68% 1.24%
2012 1.64% 1.26%
2011 1.6% 1.29%
2010 1.57% 1.31%
2009 1.54% 1.34%
2008 1.51% 1.37%
2007 1.5% 1.41%
2006 1.49% 1.44%
2005 1.48% 1.48%
2004 1.49% 1.52%
2003 1.49% 1.56%
2002 1.5% 1.61%
2001 1.52% 1.65%
2000 1.55% 1.7%
1999 1.58% 1.74%
1998 1.62% 1.78%
1997 1.67% 1.81%
1996 1.73% 1.85%
1995 1.79% 1.89%
1994 1.87% 1.94%
1993 1.95% 2%
1992 2.04% 2.06%
1991 2.13% 2.14%
1990 2.24% 2.21%
1989 2.35% 2.29%
1988 2.46% 2.37%
1987 2.58% 2.44%
1986 2.71% 2.51%
1985 2.85% 2.57%
1984 2.99% 2.63%
1983 3.15% 2.7%
1982 3.3% 2.78%
1981 3.46% 2.87%
1980 3.62% 2.97%
1979 3.77% 3.09%
1978 3.9% 3.22%
1977 4.03% 3.37%
1976 4.15% 3.53%
1975 4.25% 3.71%
1974 4.36% 3.9%
1973 4.47% 4.11%
1972 4.58% 4.35%
1971 4.71% 4.61%
1970 4.87% 4.91%
1969 5.06% 5.25%
1968 5.3% 5.63%
1967 5.59% 6.03%
1966 5.95% 6.45%
1965 6.39% 6.89%
1964 6.91% 7.35%
1963 7.5% 7.83%
1962 8.15% -
1961 8.83% -
1960 9.5% -

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

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

The chance that a newborn baby will die before reaching age five is 1.83% in Grenada and 0.99% in Tonga. Above is a chart with historical data on under-five mortality rates.

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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)

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