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Fertility & birth rates in Chile and Sao Tome and Principe

Updated on by Georank team

Chile has an annual birth rate of 8.96 births per 1,000 people, compared to 28.2 for Sao Tome and Principe. The average number of children a woman is expected to have during her lifetime — the fertility rate, is 1.17 in Chile and 3.64 in Sao Tome and Principe — 212.3% difference.

1960 vs 2023, the fertility rate has decreased by 75.2% in Chile and by 41.6% in Sao Tome and Principe — in 1960, it was 4.7 and 6.24, respectively.

  • Chile is ranked 164/196 by birth rate compared to 39/196 for Sao Tome and Principe.
  • The mean age at childbearing (for all the births, not just the first) is 31.7 in Chile — it's 28.4 in Sao Tome and Principe.
  • Annual births per 1,000 women ages 15-19 (adolescent birth rate or teenage mother rate) is 6.54 in Chile vs 86.2 in Sao Tome and Principe.
  • In Chile, 25.2% of the population is composed of women of reproductive age (15-49), compared to 25.2% in Sao Tome and Principe.

Fertility rate in Chile vs Sao Tome and Principe by year

Chile
Sao Tome and Principe
1x
Year Fertility rate
Chile Sao Tome
2023 1.17 3.64
2022 1.25 3.7
2021 1.18 3.76
2020 1.31 3.83
2019 1.43 3.9
2018 1.54 3.98
2017 1.56 4.07
2016 1.69 4.2
2015 1.74 4.35
2014 1.77 4.49
2013 1.79 4.58
2012 1.8 4.66
2011 1.82 4.72
2010 1.84 4.77
2009 1.86 4.84
2008 1.85 4.91
2007 1.83 4.96
2006 1.8 4.93
2005 1.83 4.94
2004 1.84 4.96
2003 1.89 5.01
2002 1.93 5.06
2001 2.01 5.1
2000 2.05 5.16
1999 2.07 5.23
1998 2.15 5.3
1997 2.2 5.4
1996 2.28 5.47
1995 2.35 5.55
1994 2.38 5.56
1993 2.43 5.64
1992 2.48 5.7
1991 2.56 5.77
1990 2.58 5.83
1989 2.59 5.88
1988 2.59 5.94
1987 2.59 5.99
1986 2.59 6.05
1985 2.59 6.1
1984 2.6 6.16
1983 2.62 6.22
1982 2.65 6.28
1981 2.69 6.33
1980 2.74 6.39
1979 2.81 6.43
1978 2.89 6.47
1977 2.98 6.5
1976 3.08 6.52
1975 3.18 6.53
1974 3.29 6.53
1973 3.41 6.53
1972 3.53 6.51
1971 3.65 6.49
1970 3.78 6.47
1969 3.9 6.44
1968 4.03 6.42
1967 4.14 6.39
1966 4.26 6.37
1965 4.36 6.35
1964 4.46 6.33
1963 4.54 6.31
1962 4.6 6.28
1961 4.66 6.26
1960 4.7 6.24

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

GeoRank.org/birth-rate/chile/sao-tome-and-principe | CC BY

According to the latest available data on birth rates, the fertility rate in Chile was 1.17 children per woman in 2023, compared to 3.64 in Sao Tome and Principe in 2023. The replacement level is considered to be 2.1 children per woman.

Check Chile vs Sao Tome and Principe population clock for a dynamic visualization of the changing population.

Natural population change by year

Chile
Sao Tome and Principe
1x
Year Natural population change
Chile Sao Tome
2023 48,518 5,221
2022 41,041 5,102
2021 27,530 4,954
2020 52,378 4,874
2019 86,006 4,932
2018 103,950 4,957
2017 106,268 5,007
2016 120,545 5,125
2015 127,074 5,269
2014 131,373 5,381
2013 133,785 5,449
2012 134,617 5,501
2011 141,053 5,445
2010 145,527 5,391
2009 147,576 5,349
2008 147,105 5,297
2007 145,043 5,226
2006 142,277 5,057
2005 147,009 4,897
2004 150,138 4,810
2003 154,287 4,702
2002 162,322 4,591
2001 171,659 4,471
2000 175,362 4,334
1999 177,995 4,221
1998 185,815 4,120
1997 190,433 4,041
1996 199,897 3,993
1995 208,017 3,948
1994 209,834 3,860
1993 215,003 3,841
1992 219,224 3,822
1991 227,180 3,801
1990 226,941 3,719
1989 224,854 3,576
1988 221,602 3,544
1987 218,034 3,440
1986 213,571 3,180
1985 208,910 3,242
1984 205,407 3,163
1983 202,352 3,100
1982 199,522 3,047
1981 198,211 3,015
1980 198,281 2,965
1979 197,198 2,893
1978 196,483 2,800
1977 197,163 2,705
1976 196,986 2,608
1975 196,890 2,515
1974 196,322 2,422
1973 197,666 2,329
1972 198,162 2,232
1971 198,523 2,127
1970 200,402 1,980
1969 202,764 1,862
1968 203,577 1,767
1967 204,377 1,693
1966 204,661 1,642
1965 203,341 1,611
1964 202,741 1,600
1963 202,370 1,609
1962 200,905 1,625
1961 198,788 1,657
1960 198,461 1,547

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

GeoRank.org/birth-rate/chile/sao-tome-and-principe | 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 +0.25% in Chile and +2.26% in Sao Tome and Principe.

For the past 10 years, the annual natural population change has been +0.45% in Chile and +2.4% in Sao Tome and Principe.

Birth rate in Chile vs Sao Tome and Principe by year

Chile
Sao Tome and Principe

Annual births per 1,000 people

1x
Year Annual births per 1,000 people
Chile Sao Tome
2023 8.96 28.2
2022 9.67 28.3
2021 9.07 28.5
2020 10.1 28.6
2019 10.9 29.2
2018 11.7 29.8
2017 11.8 30.6
2016 12.7 31.7
2015 13.1 33
2014 13.5 34.3
2013 13.6 35.4
2012 13.8 36.4
2011 14 36.8
2010 14.2 37.3
2009 14.4 37.9
2008 14.4 38.5
2007 14.2 38.9
2006 14 38.9
2005 14.2 39
2004 14.4 39.2
2003 14.8 39.6
2002 15.2 39.8
2001 15.9 40
2000 16.3 39.7
1999 16.7 39.4
1998 17.4 39.2
1997 17.9 39.2
1996 18.8 39.3
1995 19.5 39.5
1994 19.8 39.4
1993 20.4 39.8
1992 21 40.2
1991 21.8 40.7
1990 22.1 40.7
1989 22.3 40.9
1988 22.5 40.9
1987 22.5 41
1986 22.5 41
1985 22.5 41
1984 22.5 41.1
1983 22.6 41.2
1982 22.7 41.3
1981 23 41.5
1980 23.2 41.6
1979 23.6 41.6
1978 24 41.4
1977 24.5 41.3
1976 24.9 41.1
1975 25.5 40.9
1974 26.1 40.6
1973 26.8 40.3
1972 27.4 39.9
1971 28.1 39.5
1970 28.8 38.8
1969 29.5 38.2
1968 30.2 37.8
1967 30.9 37.7
1966 31.7 38
1965 32.4 38.6
1964 33.1 39.7
1963 33.7 41.1
1962 34.3 42.7
1961 34.8 44.6
1960 35.3 44.6

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

GeoRank.org/birth-rate/chile/sao-tome-and-principe | CC BY

The latest reported birth rate per 1,000 people in 2023 was 8.96 in Chile and 28.2 in Sao Tome and Principe, compared with 35.3 and 44.6, respectively, in 1960.

Birth rate data compared

Chile Sao Tome
Fertility rate 1.17 3.64
Fertility rate rank 186/196 41/196
Birth rate 8.96 28.2
Birth rate rank 164/196 39/196
Population change due to births and deaths +48,518 +5,221
Natural population change rank 96/196 126/196
Natural population change rate +0.25% +2.26%
Population growth +0.54% +2.02%
Population growth rank 130/197 49/197
Age at first childbirth n/a 19.4 years
Average age at childbearing 31.7 years 28.4 years
Annual births per 1,000 women ages 15-19 4.38 82.5
Annual births per 1,000 women ages 20-29 42.7 169.9
Annual births per 1,000 women ages 30+ 16.8 47.4
Female of reproductive age (15-49), share of population 25.2% 25.2%
Any modern method of contraceptive prevalence among married women ages 15-49 69.8% 46%
Share of births attended by skilled health staff 99.8% 96.8%
Maternal mortality per live birth 0.01% 0.08%
Neonatal mortality rate (before reaching 28 days of age) 0.46% 0.68%
Infant mortality rate (before reaching 1 year of age) 0.62% 0.94%
Mortality rate before reaching 5 years of age 0.72% 1.39%
Life expectancy 81.7 years 70.3 years

Children 0-14 years as share of population

Chile
Factual

UN forecast
Sao Tome and Principe
Factual

UN forecast
1x
Year Young
Chile Sao Tome
2100 9.83% 19.5%
2099 9.84% 19.6%
2098 9.85% 19.8%
2097 9.86% 19.9%
2096 9.87% 20%
2095 9.88% 20.2%
2094 9.89% 20.3%
2093 9.89% 20.4%
2092 9.89% 20.6%
2091 9.89% 20.7%
2090 9.88% 20.9%
2089 9.87% 21.1%
2088 9.86% 21.2%
2087 9.84% 21.4%
2086 9.82% 21.6%
2085 9.8% 21.8%
2084 9.78% 22%
2083 9.75% 22.2%
2082 9.73% 22.4%
2081 9.7% 22.6%
2080 9.68% 22.9%
2079 9.65% 23.1%
2078 9.64% 23.3%
2077 9.62% 23.5%
2076 9.61% 23.7%
2075 9.62% 24%
2074 9.63% 24.2%
2073 9.65% 24.4%
2072 9.68% 24.6%
2071 9.73% 24.8%
2070 9.78% 25%
2069 9.84% 25.2%
2068 9.92% 25.4%
2067 10% 25.6%
2066 10.1% 25.9%
2065 10.2% 26.1%
2064 10.3% 26.3%
2063 10.4% 26.5%
2062 10.5% 26.8%
2061 10.6% 27%
2060 10.7% 27.3%
2059 10.8% 27.5%
2058 10.9% 27.8%
2057 11% 28.1%
2056 11.1% 28.4%
2055 11.2% 28.7%
2054 11.2% 29%
2053 11.3% 29.4%
2052 11.4% 29.7%
2051 11.4% 30.1%
2050 11.5% 30.4%
2049 11.6% 30.8%
2048 11.6% 31.1%
2047 11.7% 31.5%
2046 11.8% 31.8%
2045 11.9% 32.1%
2044 11.9% 32.5%
2043 12% 32.8%
2042 12.1% 33.1%
2041 12.2% 33.4%
2040 12.2% 33.6%
2039 12.3% 33.9%
2038 12.5% 34.1%
2037 12.6% 34.4%
2036 12.7% 34.6%
2035 12.9% 34.7%
2034 13.2% 34.9%
2033 13.5% 35.1%
2032 13.9% 35.3%
2031 14.2% 35.5%
2030 14.7% 35.8%
2029 15.1% 36.1%
2028 15.5% 36.6%
2027 15.9% 37%
2026 16.3% 37.3%
2025 16.8% 37.6%
2024 17% 37.8%
2023 17.4% 38.3%
2022 17.8% 38.8%
2021 18.1% 39.4%
2020 18.4% 39.9%
2019 18.7% 40.5%
2018 19% 40.9%
2017 19.3% 41.4%
2016 19.7% 41.7%
2015 19.9% 41.9%
2014 20.2% 42%
2013 20.5% 42%
2012 20.8% 42%
2011 21.1% 42%
2010 21.5% 42.1%
2009 22% 42.1%
2008 22.4% 42.1%
2007 22.9% 42%
2006 23.5% 42%
2005 24.1% 42%
2004 24.7% 42.1%
2003 25.3% 42.2%
2002 25.8% 42.3%
2001 26.3% 42.5%
2000 26.8% 42.8%
1999 27.3% 43.4%
1998 27.7% 43.9%
1997 28% 44.3%
1996 28.3% 44.7%
1995 28.6% 44.9%
1994 28.9% 45.1%
1993 29.1% 45.2%
1992 29.3% 45.2%
1991 29.6% 45.1%
1990 29.8% 45.1%
1989 30% 45%
1988 30.2% 45%
1987 30.5% 44.9%
1986 30.8% 44.7%
1985 31.2% 44.5%
1984 31.5% 44.4%
1983 32% 44.5%
1982 32.4% 44.5%
1981 32.9% 44.7%
1980 33.3% 44.9%
1979 33.8% 45.1%
1978 34.3% 45.2%
1977 34.8% 45.3%
1976 35.3% 45.4%
1975 35.8% 45.5%
1974 36.3% 45.6%
1973 36.8% 45.7%
1972 37.2% 45.9%
1971 37.6% 46.1%
1970 38% 46.2%
1969 38.3% 45.8%
1968 38.5% 44.9%
1967 38.8% 44%
1966 39% 42.9%
1965 39.2% 41.6%
1964 39.4% 40.2%
1963 39.6% 38.5%
1962 39.7% 36.6%
1961 39.7% 34.3%
1960 39.7% 32.9%

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/chile/sao-tome-and-principe | CC BY

Children aged 0-14 make up 17% of the population in Chile and 37.8% in Sao Tome and Principe in 2024, compared to 29.8% and 45.1% respectively in 1990.

Demographics of Chile and Sao Tome and Principe compared.

Fertility rates around the globe

1x

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

GeoRank.org/birth-rate/chile/sao-tome-and-principe | CC BY

Maternal mortality chart: Chile vs Sao Tome and Principe

Chile
Sao Tome and Principe
1x
Year Maternal mortality per 100K births
Chile Sao Tome
2023 10 75
2022 12 82
2021 14 98
2020 12 92
2019 11 95
2018 11 100
2017 12 110
2016 13 119
2015 14 128
2014 16 138
2013 17 150
2012 18 158
2011 20 164
2010 22 170
2009 24 172
2008 24 174
2007 26 174
2006 27 177
2005 27 181
2004 28 177
2003 29 178
2002 30 179
2001 32 178
2000 33 180
1999 35 179
1998 36 175
1997 39 173
1996 41 171
1995 44 172
1994 47 168
1993 49 166
1992 52 164
1991 54 166
1990 56 164
1989 62 167
1988 64 157
1987 67 161
1986 70 175
1985 73 159

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

GeoRank.org/birth-rate/chile/sao-tome-and-principe | CC BY

The maternal mortality rate, which is the probability of dying during childbirth or within 42 days of pregnancy termination, is 10 deaths per 100,000 live births in Chile, compared to 75 deaths in Sao Tome and Principe.

Under-five mortality rates

Chile
Sao Tome and Principe

Probability that a newborn baby will die before reaching age five

1x
Year Under 5 mortality rate
Chile Sao Tome
2023 0.72% 1.39%
2022 0.68% 1.46%
2021 0.67% 1.53%
2020 0.68% 1.6%
2019 0.7% 1.7%
2018 0.72% 1.81%
2017 0.75% 1.95%
2016 0.77% 2.11%
2015 0.79% 2.31%
2014 0.81% 2.54%
2013 0.82% 2.77%
2012 0.84% 3.04%
2011 0.86% 3.33%
2010 0.87% 3.63%
2009 0.88% 3.95%
2008 0.89% 4.3%
2007 0.89% 4.68%
2006 0.9% 5.11%
2005 0.91% 5.56%
2004 0.93% 6.05%
2003 0.95% 6.57%
2002 0.98% 7.1%
2001 1.03% 7.66%
2000 1.09% 8.21%
1999 1.15% 8.76%
1998 1.19% 9.26%
1997 1.22% 9.73%
1996 1.26% 10.1%
1995 1.31% 10.4%
1994 1.39% 10.7%
1993 1.5% 10.8%
1992 1.63% 10.9%
1991 1.76% 10.9%
1990 1.91% 10.8%
1989 2.03% 10.7%
1988 2.14% 10.6%
1987 2.2% 10.4%
1986 2.22% 11.4%
1985 2.23% 9.99%
1984 2.3% 9.77%
1983 2.47% 9.56%
1982 2.71% 9.37%
1981 2.98% 9.21%
1980 3.29% 9.1%
1979 3.69% 9.02%
1978 4.2% 8.96%
1977 4.85% 8.93%
1976 5.63% 8.89%
1975 6.46% 8.85%
1974 7.14% 8.79%
1973 7.54% 8.73%
1972 7.73% 8.67%
1971 7.86% 8.63%
1970 8.01% 8.64%
1969 8.26% 8.71%
1968 8.69% 8.85%
1967 9.36% 9.04%
1966 10.4% 9.29%
1965 11.6% 9.56%
1964 12.7% -
1963 13.6% -
1962 14.3% -
1961 14.9% -
1960 15.3% -

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

GeoRank.org/birth-rate/chile/sao-tome-and-principe | CC BY

The chance that a newborn baby will die before reaching age five is 0.72% in Chile and 1.39% in Sao Tome and Principe. 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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