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Fertility & birth rates in Brazil and Sierra Leone

Updated on by Georank team

Brazil has an annual birth rate of 12.3 births per 1,000 people, compared to 30.6 for Sierra Leone. The average number of children a woman is expected to have during her lifetime — the fertility rate, is 1.62 in Brazil and 3.79 in Sierra Leone — 134.2% difference.

1960 vs 2023, the fertility rate has decreased by 73.2% in Brazil and by 38.6% in Sierra Leone — in 1960, it was 6.05 and 6.18, respectively.

  • Brazil is ranked 114/196 by birth rate compared to 29/196 for Sierra Leone.
  • The mean age at childbearing (for all the births, not just the first) is 28.1 in Brazil — it's 28.5 in Sierra Leone.
  • Annual births per 1,000 women ages 15-19 (adolescent birth rate or teenage mother rate) is 42.7 in Brazil vs 93.6 in Sierra Leone.
  • In Brazil, 26.2% of the population is composed of women of reproductive age (15-49), compared to 25.4% in Sierra Leone.

Fertility rate in Brazil vs Sierra Leone by year

Brazil
Sierra Leone
1x
Year Fertility rate
Brazil Sierra Leone
2023 1.62 3.79
2022 1.63 3.88
2021 1.64 3.98
2020 1.65 4.08
2019 1.71 4.19
2018 1.74 4.29
2017 1.74 4.39
2016 1.73 4.47
2015 1.78 4.55
2014 1.78 4.7
2013 1.76 4.87
2012 1.77 5.06
2011 1.78 5.21
2010 1.79 5.33
2009 1.8 5.45
2008 1.82 5.56
2007 1.85 5.64
2006 1.9 5.74
2005 1.94 5.81
2004 1.97 5.92
2003 2.01 6.09
2002 2.08 6.23
2001 2.16 6.31
2000 2.25 6.36
1999 2.34 6.42
1998 2.42 6.5
1997 2.47 6.53
1996 2.51 6.55
1995 2.57 6.56
1994 2.6 6.56
1993 2.66 6.57
1992 2.71 6.56
1991 2.81 6.55
1990 2.9 6.57
1989 3.01 6.57
1988 3.11 6.59
1987 3.23 6.61
1986 3.36 6.6
1985 3.48 6.59
1984 3.6 6.59
1983 3.72 6.57
1982 3.84 6.56
1981 3.94 6.55
1980 4.04 6.56
1979 4.12 6.58
1978 4.2 6.59
1977 4.27 6.57
1976 4.34 6.55
1975 4.42 6.55
1974 4.5 6.53
1973 4.64 6.47
1972 4.74 6.45
1971 4.84 6.43
1970 4.93 6.41
1969 5.04 6.39
1968 5.17 6.39
1967 5.34 6.38
1966 5.52 6.35
1965 5.68 6.31
1964 5.82 6.29
1963 5.93 6.26
1962 5.98 6.22
1961 6.02 6.21
1960 6.05 6.18

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

GeoRank.org/birth-rate/brazil/sierra-leone | CC BY

According to the latest available data on birth rates, the fertility rate in Brazil was 1.62 children per woman in 2023, compared to 3.79 in Sierra Leone in 2023. The replacement level is considered to be 2.1 children per woman.

Check Brazil vs Sierra Leone population clock for a dynamic visualization of the changing population.

Natural population change by year

Brazil
Sierra Leone
1x
Year Natural population change
Brazil Sierra Leone
2023 1,107,434 188,788
2022 1,054,897 186,625
2021 919,507 183,326
2020 1,146,174 181,015
2019 1,472,104 181,068
2018 1,583,935 178,772
2017 1,610,402 173,259
2016 1,609,488 168,784
2015 1,742,275 162,275
2014 1,757,948 160,137
2013 1,758,716 161,265
2012 1,782,516 160,915
2011 1,815,758 158,858
2010 1,847,336 155,338
2009 1,878,542 152,669
2008 1,908,051 149,855
2007 1,970,372 145,740
2006 2,026,119 144,127
2005 2,083,281 137,234
2004 2,108,072 132,661
2003 2,128,819 130,312
2002 2,207,017 126,429
2001 2,291,210 116,647
2000 2,372,043 110,754
1999 2,450,869 102,295
1998 2,514,728 103,906
1997 2,531,758 105,433
1996 2,530,690 104,140
1995 2,546,195 100,885
1994 2,532,951 101,486
1993 2,545,874 103,317
1992 2,547,698 103,251
1991 2,606,167 105,477
1990 2,652,959 100,778
1989 2,717,923 98,298
1988 2,768,082 96,344
1987 2,825,485 94,235
1986 2,880,440 90,902
1985 2,912,908 88,869
1984 2,931,496 87,072
1983 2,952,335 84,628
1982 2,948,552 82,457
1981 2,928,262 80,111
1980 2,887,768 77,932
1979 2,836,759 75,992
1978 2,778,815 74,130
1977 2,715,328 71,663
1976 2,648,647 69,506
1975 2,585,130 67,560
1974 2,524,254 65,357
1973 2,501,309 62,443
1972 2,454,698 60,279
1971 2,407,319 58,484
1970 2,362,073 56,513
1969 2,324,190 54,768
1968 2,301,561 53,126
1967 2,307,560 51,734
1966 2,325,332 49,486
1965 2,336,415 47,223
1964 2,338,478 45,487
1963 2,326,400 43,569
1962 2,286,666 41,603
1961 2,240,178 40,022
1960 2,190,392 38,192

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

GeoRank.org/birth-rate/brazil/sierra-leone | 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 +0.52% in Brazil and +2.23% in Sierra Leone.

For the past 10 years, the annual natural population change has been +0.68% in Brazil and +2.31% in Sierra Leone.

Birth rate in Brazil vs Sierra Leone by year

Brazil
Sierra Leone

Annual births per 1,000 people

1x
Year Annual births per 1,000 people
Brazil Sierra Leone
2023 12.3 30.6
2022 12.6 31.1
2021 12.8 31.6
2020 13 32.2
2019 13.5 32.8
2018 14 33.3
2017 14.1 33.8
2016 14.1 34.2
2015 14.7 34.7
2014 14.8 35.6
2013 14.8 36.6
2012 14.9 37.8
2011 15.1 38.5
2010 15.3 39.1
2009 15.6 39.9
2008 15.8 40.6
2007 16.2 41.1
2006 16.7 41.8
2005 17.2 42
2004 17.5 42.5
2003 17.8 43.5
2002 18.5 44.3
2001 19.2 44
2000 19.9 45
1999 20.6 46.1
1998 21.2 46.3
1997 21.6 46.3
1996 21.9 46.5
1995 22.3 46.8
1994 22.5 46.8
1993 23 46.9
1992 23.3 47
1991 24.1 47.5
1990 24.8 45.5
1989 25.6 46.3
1988 26.5 46.4
1987 27.4 46.6
1986 28.3 46.6
1985 29.2 46.7
1984 30 46.8
1983 30.8 46.7
1982 31.5 46.8
1981 32 46.8
1980 32.4 46.8
1979 32.7 47
1978 33 47.2
1977 33.2 47.1
1976 33.3 47.2
1975 33.5 47.3
1974 33.7 47.4
1973 34.2 47.2
1972 34.5 47.2
1971 34.9 47.3
1970 35.2 47.4
1969 35.7 47.5
1968 36.3 47.7
1967 37.4 47.9
1966 38.6 48
1965 39.8 48
1964 41 48.2
1963 42 48.2
1962 42.7 48.1
1961 43.3 48.1
1960 43.9 48

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

GeoRank.org/birth-rate/brazil/sierra-leone | CC BY

The latest reported birth rate per 1,000 people in 2023 was 12.3 in Brazil and 30.6 in Sierra Leone, compared with 43.9 and 48, respectively, in 1960.

Birth rate data compared

Brazil Sierra Leone
Fertility rate 1.62 3.79
Fertility rate rank 124/196 35/196
Birth rate 12.3 30.6
Birth rate rank 114/196 29/196
Population change due to births and deaths +1,107,434 +188,788
Natural population change rank 17/196 62/196
Natural population change rate +0.52% +2.23%
Population growth +0.41% +2.15%
Population growth rank 141/197 47/197
Age at first childbirth n/a 19.6 years
Average age at childbearing 28.1 years 28.5 years
Annual births per 1,000 women ages 15-19 38.4 87.7
Annual births per 1,000 women ages 20-29 76.8 169.3
Annual births per 1,000 women ages 30+ 15.3 53.4
Female of reproductive age (15-49), share of population 26.2% 25.4%
Any modern method of contraceptive prevalence among married women ages 15-49 77.7% 20.9%
Share of births attended by skilled health staff 98.4% 86.9%
Maternal mortality per live birth 0.07% 0.35%
Neonatal mortality rate (before reaching 28 days of age) 0.76% 2.93%
Infant mortality rate (before reaching 1 year of age) 1.25% 5.62%
Mortality rate before reaching 5 years of age 1.44% 9.43%
Life expectancy 76.4 years 62.3 years

Children 0-14 years as share of population

Brazil
Factual

UN forecast
Sierra Leone
Factual

UN forecast
1x
Year Young
Brazil Sierra Leone
2100 12.4% 19%
2099 12.4% 19%
2098 12.4% 19.1%
2097 12.4% 19.2%
2096 12.5% 19.3%
2095 12.5% 19.5%
2094 12.5% 19.6%
2093 12.5% 19.7%
2092 12.6% 19.8%
2091 12.6% 19.9%
2090 12.6% 20%
2089 12.6% 20.1%
2088 12.7% 20.3%
2087 12.7% 20.4%
2086 12.7% 20.5%
2085 12.7% 20.7%
2084 12.8% 20.8%
2083 12.8% 20.9%
2082 12.8% 21.1%
2081 12.8% 21.2%
2080 12.8% 21.4%
2079 12.9% 21.6%
2078 12.9% 21.7%
2077 12.9% 21.9%
2076 12.9% 22.1%
2075 12.9% 22.2%
2074 13% 22.4%
2073 13% 22.6%
2072 13% 22.8%
2071 13.1% 23%
2070 13.1% 23.2%
2069 13.2% 23.4%
2068 13.2% 23.6%
2067 13.3% 23.8%
2066 13.3% 24%
2065 13.4% 24.3%
2064 13.4% 24.5%
2063 13.5% 24.7%
2062 13.6% 25%
2061 13.7% 25.2%
2060 13.8% 25.5%
2059 13.8% 25.7%
2058 13.9% 26%
2057 14% 26.3%
2056 14.1% 26.6%
2055 14.2% 26.9%
2054 14.3% 27.1%
2053 14.4% 27.4%
2052 14.5% 27.7%
2051 14.6% 28.1%
2050 14.7% 28.4%
2049 14.8% 28.7%
2048 14.9% 29%
2047 15% 29.3%
2046 15.1% 29.7%
2045 15.2% 30%
2044 15.3% 30.3%
2043 15.5% 30.7%
2042 15.6% 31.1%
2041 15.7% 31.4%
2040 15.8% 31.8%
2039 16% 32.2%
2038 16.2% 32.6%
2037 16.3% 33%
2036 16.5% 33.4%
2035 16.7% 33.8%
2034 17% 34.2%
2033 17.3% 34.6%
2032 17.5% 35%
2031 17.8% 35.4%
2030 18.1% 35.7%
2029 18.4% 36.1%
2028 18.7% 36.5%
2027 19% 37%
2026 19.2% 37.4%
2025 19.5% 37.9%
2024 19.7% 38.1%
2023 19.9% 38.5%
2022 20.2% 39%
2021 20.5% 39.4%
2020 20.8% 39.8%
2019 21.1% 40.2%
2018 21.4% 40.6%
2017 21.7% 41%
2016 22% 41.4%
2015 22.4% 41.8%
2014 22.8% 42.2%
2013 23.3% 42.5%
2012 23.7% 42.8%
2011 24.2% 43%
2010 24.7% 43.2%
2009 25.2% 43.4%
2008 25.7% 43.5%
2007 26.1% 43.6%
2006 26.6% 43.7%
2005 27.1% 43.8%
2004 27.6% 43.9%
2003 28.2% 43.9%
2002 28.7% 43.9%
2001 29.3% 43.9%
2000 29.9% 43.8%
1999 30.5% 43.7%
1998 31% 43.6%
1997 31.6% 43.5%
1996 32.2% 43.5%
1995 32.8% 43.4%
1994 33.4% 43.3%
1993 34% 43.2%
1992 34.5% 43.1%
1991 35% 43%
1990 35.5% 42.9%
1989 35.9% 42.9%
1988 36.3% 42.8%
1987 36.6% 42.7%
1986 36.9% 42.6%
1985 37.2% 42.5%
1984 37.4% 42.3%
1983 37.7% 42.2%
1982 37.9% 42.1%
1981 38.1% 42%
1980 38.4% 41.9%
1979 38.8% 41.8%
1978 39.1% 41.7%
1977 39.6% 41.6%
1976 40% 41.4%
1975 40.5% 41.3%
1974 40.9% 41.1%
1973 41.4% 40.9%
1972 41.8% 40.7%
1971 42.2% 40.6%
1970 42.7% 40.3%
1969 43% 40.1%
1968 43.4% 39.9%
1967 43.8% 39.6%
1966 44% 39.4%
1965 44.2% 39.1%
1964 44.4% 38.8%
1963 44.5% 38.5%
1962 44.4% 38.3%
1961 44.3% 38.3%
1960 44.2% 38.2%

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/brazil/sierra-leone | CC BY

Children aged 0-14 make up 19.7% of the population in Brazil and 38.1% in Sierra Leone in 2024, compared to 35.5% and 42.9% respectively in 1990.

Demographics of Brazil and Sierra Leone compared.

Fertility rates around the globe

1x

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

GeoRank.org/birth-rate/brazil/sierra-leone | CC BY

Maternal mortality chart: Brazil vs Sierra Leone

Brazil
Sierra Leone
1x
Year Maternal mortality per 100K births
Brazil Sierra Leone
2023 67 354
2022 104 370
2021 128 403
2020 85 422
2019 65 464
2018 62 491
2017 61 578
2016 64 633
2015 63 730
2014 63 821
2013 61 842
2012 60 915
2011 62 967
2010 66 1,018
2009 69 1,054
2008 71 1,093
2007 73 1,132
2006 72 1,168
2005 71 1,294
2004 70 1,366
2003 67 1,433
2002 66 1,492
2001 66 1,518
2000 69 1,603
1999 75 1,731
1998 84 1,753
1997 92 1,721
1996 98 1,726
1995 103 1,777
1994 108 1,755
1993 113 1,696
1992 118 1,681
1991 128 1,699
1990 140 1,572
1989 150 1,575
1988 161 1,549
1987 167 1,533
1986 176 1,530
1985 186 1,506

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

GeoRank.org/birth-rate/brazil/sierra-leone | CC BY

The maternal mortality rate, which is the probability of dying during childbirth or within 42 days of pregnancy termination, is 67 deaths per 100,000 live births in Brazil, compared to 354 deaths in Sierra Leone.

Under-five mortality rates

Brazil
Sierra Leone

Probability that a newborn baby will die before reaching age five

1x
Year Under 5 mortality rate
Brazil Sierra Leone
2023 1.44% 9.43%
2022 1.46% 9.77%
2021 1.47% 10.1%
2020 1.49% 10.5%
2019 1.5% 10.9%
2018 1.52% 11.3%
2017 1.54% 11.8%
2016 1.68% 12.3%
2015 1.6% 13.8%
2014 1.63% 13.7%
2013 1.67% 13.9%
2012 1.72% 14.5%
2011 1.79% 15.2%
2010 1.86% 15.9%
2009 1.95% 16.6%
2008 2.05% 17.3%
2007 2.17% 18.1%
2006 2.31% 18.8%
2005 2.46% 19.4%
2004 2.63% 20.1%
2003 2.81% 20.7%
2002 3.01% 21.3%
2001 3.22% 21.8%
2000 3.45% 22.4%
1999 3.68% 22.9%
1998 3.93% 23.4%
1997 4.19% 23.9%
1996 4.47% 24.3%
1995 4.77% 24.7%
1994 5.09% 25%
1993 5.41% 25.3%
1992 5.72% 25.5%
1991 6.02% 25.7%
1990 6.31% 25.9%
1989 6.58% 26.2%
1988 6.84% 26.4%
1987 7.11% 26.6%
1986 7.38% 26.9%
1985 7.67% 27.2%
1984 7.98% 27.5%
1983 8.34% 27.8%
1982 8.73% 28.1%
1981 9.14% 28.5%
1980 9.57% 28.9%
1979 10% 29.2%
1978 10.4% 29.6%
1977 10.8% 30%
1976 11.2% 30.5%
1975 11.6% 30.9%
1974 11.9% 31.4%
1973 12.2% 31.9%
1972 12.6% 32.3%
1971 12.9% 32.9%
1970 13.2% 33.4%
1969 13.6% 33.9%
1968 13.9% 34.5%
1967 14.2% 35%
1966 14.5% 35.6%
1965 14.9% 36.2%
1964 15.2% 36.8%
1963 15.6% 37.4%
1962 16% 38%
1961 16.5% 38.5%
1960 16.9% 39.1%

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

GeoRank.org/birth-rate/brazil/sierra-leone | CC BY

The chance that a newborn baby will die before reaching age five is 1.44% in Brazil and 9.43% in Sierra Leone. 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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