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Fertility & birth rates in Senegal and Tonga

Updated on by Georank team

Senegal has an annual birth rate of 29.4 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 3.82 in Senegal and 3.13 in Tonga — 18% difference.

1960 vs 2023, the fertility rate has decreased by 45.4% in Senegal and by 53% in Tonga — in 1960, it was 7 and 6.65, respectively.

  • Senegal is ranked 34/196 by birth rate compared to 58/196 for Tonga.
  • The mean age for first-time mothers is 21.9 years in Senegal, compared to 24.9 years in Tonga.
  • The mean age at childbearing (for all the births, not just the first) is 29.9 in Senegal — it's 29.9 in Tonga.
  • Annual births per 1,000 women ages 15-19 (adolescent birth rate or teenage mother rate) is 60.2 in Senegal vs 24.8 in Tonga.
  • In Senegal, 25.1% of the population is composed of women of reproductive age (15-49), compared to 25.6% in Tonga.

Fertility rate in Senegal vs Tonga by year

Senegal
Tonga
1x
Year Fertility rate
Senegal Tonga
2023 3.82 3.13
2022 3.86 3.17
2021 3.94 3.2
2020 4 3.23
2019 4.1 3.27
2018 4.29 3.33
2017 4.49 3.39
2016 4.65 3.46
2015 4.75 3.54
2014 4.88 3.62
2013 5.05 3.7
2012 5.13 3.77
2011 5.1 3.83
2010 5.06 3.88
2009 5.03 3.95
2008 5.02 4.01
2007 5.02 4.09
2006 5.06 4.14
2005 5.13 4.2
2004 5.19 4.19
2003 5.25 4.18
2002 5.3 4.14
2001 5.4 4.13
2000 5.5 4.16
1999 5.57 4.23
1998 5.58 4.31
1997 5.64 4.38
1996 5.72 4.46
1995 5.82 4.56
1994 5.92 4.66
1993 6.05 4.73
1992 6.15 4.79
1991 6.27 4.85
1990 6.4 4.93
1989 6.48 5.01
1988 6.58 5.1
1987 6.79 5.19
1986 6.9 5.27
1985 7.01 5.34
1984 7.11 5.41
1983 7.19 5.45
1982 7.25 5.5
1981 7.28 5.55
1980 7.29 5.6
1979 7.29 5.65
1978 7.28 5.68
1977 7.27 5.7
1976 7.26 5.73
1975 7.25 5.75
1974 7.25 5.77
1973 7.26 5.8
1972 7.26 5.86
1971 7.26 5.96
1970 7.26 6.07
1969 7.26 6.17
1968 7.25 6.23
1967 7.24 6.29
1966 7.22 6.35
1965 7.19 6.41
1964 7.16 6.46
1963 7.12 6.52
1962 7.08 6.57
1961 7.04 6.61
1960 7 6.65

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

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

According to the latest available data on birth rates, the fertility rate in Senegal was 3.82 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 Senegal vs Tonga population clock for a dynamic visualization of the changing population.

Natural population change by year

Senegal
Tonga
1x
Year Natural population change
Senegal Tonga
2023 431,006 1,744
2022 415,507 1,772
2021 403,019 1,773
2020 400,910 1,816
2019 399,436 1,841
2018 405,454 1,873
2017 410,366 1,912
2016 411,480 1,989
2015 407,008 2,064
2014 405,019 2,135
2013 406,582 2,199
2012 402,243 2,255
2011 387,290 2,298
2010 372,934 2,332
2009 362,238 2,358
2008 351,661 2,397
2007 339,963 2,423
2006 331,364 2,459
2005 323,908 2,495
2004 317,286 2,478
2003 308,856 2,448
2002 298,842 2,396
2001 289,690 2,358
2000 283,946 2,346
1999 277,944 2,352
1998 267,404 2,344
1997 261,200 2,332
1996 255,418 2,393
1995 252,552 2,476
1994 249,115 2,547
1993 245,742 2,594
1992 241,482 2,622
1991 237,713 2,637
1990 234,155 2,641
1989 227,797 2,644
1988 221,772 2,649
1987 218,522 2,646
1986 212,887 2,704
1985 208,218 2,762
1984 203,125 2,814
1983 197,673 2,840
1982 191,309 2,853
1981 185,917 2,882
1980 179,707 2,885
1979 173,425 2,884
1978 167,744 2,862
1977 161,636 2,822
1976 154,776 2,769
1975 147,311 2,709
1974 139,974 2,650
1973 133,834 2,617
1972 128,024 2,605
1971 122,511 2,611
1970 117,264 2,628
1969 112,393 2,632
1968 108,240 2,614
1967 104,824 2,603
1966 101,359 2,550
1965 97,912 2,498
1964 94,797 2,445
1963 92,264 2,394
1962 89,937 2,343
1961 87,322 2,284
1960 84,735 2,230

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

GeoRank.org/birth-rate/senegal/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 +2.38% in Senegal and +1.67% in Tonga.

For the past 10 years, the annual natural population change has been +2.55% in Senegal and +1.79% in Tonga.

Birth rate in Senegal vs Tonga by year

Senegal
Tonga

Annual births per 1,000 people

1x
Year Annual births per 1,000 people
Senegal Tonga
2023 29.4 23.1
2022 29.5 23.4
2021 29.7 23.5
2020 29.9 23.6
2019 30.4 23.8
2018 31.6 24.1
2017 32.8 24.5
2016 33.8 25.2
2015 34.5 25.8
2014 35.5 26.4
2013 36.7 26.9
2012 37.5 27.3
2011 37.4 27.7
2010 37.3 28
2009 37.3 28.4
2008 37.3 28.7
2007 37.3 29
2006 37.6 29.5
2005 38 30
2004 38.4 30
2003 38.7 29.9
2002 38.6 29.5
2001 38.9 29.4
2000 39.3 29.4
1999 39.6 29.6
1998 39.2 29.7
1997 39.2 29.8
1996 39.3 30.6
1995 39.6 31.4
1994 39.9 32.2
1993 40.3 32.7
1992 40.7 33
1991 41.2 33.2
1990 41.8 33.3
1989 42.2 33.4
1988 42.7 33.5
1987 43.7 33.7
1986 44.5 34.4
1985 45.4 34.9
1984 46.2 35.4
1983 46.8 35.6
1982 47.4 35.8
1981 47.9 36
1980 48.3 36.1
1979 48.6 36.1
1978 49 36
1977 49.3 35.7
1976 49.4 35.6
1975 49.4 35.8
1974 49.4 36
1973 49.6 36.5
1972 49.8 37
1971 49.9 37.8
1970 49.9 38.8
1969 49.9 39.6
1968 50 40.3
1967 50.1 41
1966 50.1 41.4
1965 50.1 41.9
1964 50.1 42.4
1963 50.2 42.9
1962 50.3 43.4
1961 50.3 43.9
1960 50.4 44.3

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

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

The latest reported birth rate per 1,000 people in 2023 was 29.4 in Senegal and 23.1 in Tonga, compared with 50.4 and 44.3, respectively, in 1960.

Birth rate data compared

Senegal Tonga
Fertility rate 3.82 3.13
Fertility rate rank 34/196 54/196
Birth rate 29.4 23.1
Birth rate rank 34/196 58/196
Population change due to births and deaths +431,006 +1,744
Natural population change rank 39/196 137/196
Natural population change rate +2.38% +1.67%
Population growth +2.35% -0.4%
Population growth rank 35/197 183/197
Age at first childbirth 21.9 years 24.9 years
Average age at childbearing 29.9 years 29.9 years
Annual births per 1,000 women ages 15-19 57.6 25
Annual births per 1,000 women ages 20-29 164.8 144.7
Annual births per 1,000 women ages 30+ 65.7 40.5
Female of reproductive age (15-49), share of population 25.1% 25.6%
Any modern method of contraceptive prevalence among married women ages 15-49 25.6% 25.2%
Share of births attended by skilled health staff 74.5% 98.3%
Maternal mortality per live birth 0.24% 0.07%
Neonatal mortality rate (before reaching 28 days of age) 2.23% 0.43%
Infant mortality rate (before reaching 1 year of age) 3.02% 0.8%
Mortality rate before reaching 5 years of age 3.85% 0.99%
Life expectancy 69.4 years 73.4 years

Children 0-14 years as share of population

Senegal
Factual

UN forecast
Tonga
Factual

UN forecast
1x
Year Young
Senegal Tonga
2100 20.1% 17.5%
2099 20.2% 17.6%
2098 20.4% 17.7%
2097 20.5% 17.7%
2096 20.7% 17.9%
2095 20.8% 18%
2094 21% 18.1%
2093 21.1% 18.3%
2092 21.3% 18.4%
2091 21.4% 18.6%
2090 21.6% 18.8%
2089 21.7% 19%
2088 21.9% 19.3%
2087 22% 19.5%
2086 22.2% 19.7%
2085 22.4% 20%
2084 22.6% 20.2%
2083 22.7% 20.4%
2082 22.9% 20.7%
2081 23.1% 20.9%
2080 23.3% 21.1%
2079 23.5% 21.3%
2078 23.7% 21.5%
2077 23.9% 21.7%
2076 24.2% 21.9%
2075 24.4% 22%
2074 24.6% 22.2%
2073 24.8% 22.3%
2072 25% 22.4%
2071 25.2% 22.6%
2070 25.4% 22.7%
2069 25.6% 22.8%
2068 25.8% 23%
2067 26% 23.2%
2066 26.2% 23.4%
2065 26.4% 23.6%
2064 26.6% 23.8%
2063 26.8% 24.1%
2062 27% 24.4%
2061 27.2% 24.7%
2060 27.4% 25%
2059 27.6% 25.4%
2058 27.9% 25.8%
2057 28.1% 26.2%
2056 28.3% 26.6%
2055 28.6% 27%
2054 28.8% 27.4%
2053 29.1% 27.8%
2052 29.4% 28.2%
2051 29.7% 28.5%
2050 30% 28.9%
2049 30.3% 29.1%
2048 30.7% 29.4%
2047 31% 29.6%
2046 31.3% 29.7%
2045 31.7% 29.8%
2044 32% 29.9%
2043 32.4% 30%
2042 32.7% 30.1%
2041 33.1% 30.1%
2040 33.4% 30.2%
2039 33.7% 30.2%
2038 34% 30.3%
2037 34.3% 30.4%
2036 34.5% 30.6%
2035 34.7% 30.7%
2034 35% 30.9%
2033 35.2% 31.1%
2032 35.5% 31.4%
2031 35.8% 31.8%
2030 36.1% 32.3%
2029 36.4% 33%
2028 36.7% 33.6%
2027 37.1% 34.1%
2026 37.5% 34.6%
2025 38% 35.2%
2024 38.2% 35.4%
2023 38.6% 35.6%
2022 39.2% 35.6%
2021 39.8% 35.7%
2020 40.3% 35.8%
2019 40.9% 36%
2018 41.3% 36.2%
2017 41.8% 36.4%
2016 42.1% 36.5%
2015 42.4% 36.7%
2014 42.6% 36.9%
2013 42.7% 37.1%
2012 42.7% 37.2%
2011 42.7% 37.4%
2010 42.7% 37.6%
2009 42.7% 37.8%
2008 42.7% 38%
2007 42.7% 38.3%
2006 42.8% 38.3%
2005 42.9% 38.3%
2004 43.1% 38.2%
2003 43.2% 38.1%
2002 43.5% 38.1%
2001 43.7% 38.2%
2000 43.9% 38.3%
1999 44.2% 38.6%
1998 44.4% 38.9%
1997 44.6% 39.3%
1996 44.9% 39.7%
1995 45.1% 39.9%
1994 45.4% 40.1%
1993 45.8% 40.3%
1992 46.1% 40.5%
1991 46.4% 40.6%
1990 46.6% 40.8%
1989 46.9% 40.9%
1988 47% 41.2%
1987 47.2% 41.5%
1986 47.3% 41.7%
1985 47.3% 42%
1984 47.2% 42.4%
1983 47.1% 42.9%
1982 46.9% 43.4%
1981 46.7% 43.9%
1980 46.4% 44.3%
1979 46% 44.8%
1978 45.6% 45.3%
1977 45.2% 45.8%
1976 44.8% 46.1%
1975 44.6% 46.2%
1974 44.4% 46.2%
1973 44.3% 46.2%
1972 44.2% 46.3%
1971 44.2% 46.4%
1970 44.2% 46.4%
1969 44.2% 46.3%
1968 44.2% 46.2%
1967 44.3% 46%
1966 44.3% 45.9%
1965 44.3% 45.9%
1964 44.3% 45.9%
1963 44.3% 45.9%
1962 44.3% 45.8%
1961 44.3% 45.7%
1960 44.2% 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/senegal/tonga | CC BY

Children aged 0-14 make up 38.2% of the population in Senegal and 35.4% in Tonga in 2024, compared to 46.6% and 40.8% respectively in 1990.

Demographics of Senegal and Tonga compared.

Fertility rates around the globe

1x

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

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

Maternal mortality chart: Senegal vs Tonga

Senegal
Tonga
1x
Year Maternal mortality per 100K births
Senegal Tonga
2023 237 67
2022 228 72
2021 263 76
2020 252 74
2019 286 73
2018 305 74
2017 325 77
2016 345 78
2015 357 79
2014 373 80
2013 385 80
2012 405 83
2011 415 84
2010 436 85
2009 441 91
2008 463 88
2007 457 88
2006 462 89
2005 488 92
2004 501 92
2003 520 95
2002 531 98
2001 560 98
2000 581 100
1999 602 99
1998 605 104
1997 599 111
1996 601 113
1995 586 117
1994 579 123
1993 589 127
1992 598 129
1991 616 134
1990 640 138
1989 662 139
1988 709 145
1987 760 147
1986 820 149
1985 899 148

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

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

The maternal mortality rate, which is the probability of dying during childbirth or within 42 days of pregnancy termination, is 237 deaths per 100,000 live births in Senegal, compared to 67 deaths in Tonga.

Under-five mortality rates

Senegal
Tonga

Probability that a newborn baby will die before reaching age five

1x
Year Under 5 mortality rate
Senegal Tonga
2023 3.85% 0.99%
2022 4.04% 1.02%
2021 4.25% 1.05%
2020 4.46% 1.08%
2019 4.65% 1.1%
2018 4.82% 1.12%
2017 4.97% 1.15%
2016 5.11% 1.17%
2015 5.24% 1.19%
2014 5.39% 1.22%
2013 5.57% 1.24%
2012 5.77% 1.26%
2011 6.01% 1.29%
2010 6.3% 1.31%
2009 6.63% 1.34%
2008 7.03% 1.37%
2007 7.52% 1.41%
2006 8.11% 1.44%
2005 8.8% 1.48%
2004 9.59% 1.52%
2003 10.5% 1.56%
2002 11.4% 1.61%
2001 12.2% 1.65%
2000 12.9% 1.7%
1999 13.4% 1.74%
1998 13.7% 1.78%
1997 13.9% 1.81%
1996 13.8% 1.85%
1995 13.8% 1.89%
1994 13.7% 1.94%
1993 13.6% 2%
1992 13.5% 2.06%
1991 13.6% 2.14%
1990 13.7% 2.21%
1989 14.1% 2.29%
1988 14.7% 2.37%
1987 15.4% 2.44%
1986 16.3% 2.51%
1985 17.1% 2.57%
1984 17.9% 2.63%
1983 18.5% 2.7%
1982 19.1% 2.78%
1981 19.7% 2.87%
1980 20.4% 2.97%
1979 21.2% 3.09%
1978 22.1% 3.22%
1977 23.1% 3.37%
1976 24.2% 3.53%
1975 25.3% 3.71%
1974 26.2% 3.9%
1973 27% 4.11%
1972 27.8% 4.35%
1971 28.4% 4.61%
1970 28.8% 4.91%
1969 29.2% 5.25%
1968 29.4% 5.63%
1967 29.6% 6.03%
1966 29.7% 6.45%
1965 29.7% 6.89%
1964 29.7% 7.35%
1963 29.6% 7.83%
1962 29.5% -
1961 29.4% -
1960 29.3% -

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

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

The chance that a newborn baby will die before reaching age five is 3.85% in Senegal 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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