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Fertility & birth rates in Guinea-Bissau and South Sudan

Updated on by Georank team

Guinea-Bissau has an annual birth rate of 30 births per 1,000 people, compared to 28.6 for South Sudan. The average number of children a woman is expected to have during her lifetime — the fertility rate, is 3.84 in Guinea-Bissau and 3.86 in South Sudan — 0.73% difference.

1960 vs 2023, the fertility rate has decreased by 35.2% in Guinea-Bissau and by 46% in South Sudan — in 1960, it was 5.92 and 7.16, respectively.

  • Guinea-Bissau is ranked 32/196 by birth rate compared to 36/196 for South Sudan.
  • The mean age at childbearing (for all the births, not just the first) is 29.4 in Guinea-Bissau — it's 28.4 in South Sudan.
  • Annual births per 1,000 women ages 15-19 (adolescent birth rate or teenage mother rate) is 82 in Guinea-Bissau vs 97.1 in South Sudan.
  • In Guinea-Bissau, 25.5% of the population is composed of women of reproductive age (15-49), compared to 25.1% in South Sudan.

Fertility rate in Guinea-Bissau vs South Sudan by year

Guinea-Bissau
South Sudan
1x
Year Fertility rate
Guinea-Bissau South Sudan
2023 3.84 3.86
2022 3.91 3.96
2021 4 4.05
2020 4.08 4.16
2019 4.15 4.26
2018 4.24 4.37
2017 4.35 4.48
2016 4.52 4.58
2015 4.66 4.7
2014 4.79 4.82
2013 4.93 4.94
2012 5 5.06
2011 5.07 5.19
2010 5.11 5.32
2009 5.18 5.45
2008 5.27 5.57
2007 5.37 5.7
2006 5.41 5.85
2005 5.46 6.02
2004 5.5 6.19
2003 5.58 6.35
2002 5.63 6.52
2001 5.69 6.65
2000 5.79 6.8
1999 5.87 6.94
1998 5.97 7.08
1997 6.06 7.2
1996 6.14 7.32
1995 6.22 7.34
1994 6.3 7.35
1993 6.37 7.36
1992 6.44 7.37
1991 6.47 7.38
1990 6.5 7.38
1989 6.66 7.37
1988 6.69 7.38
1987 6.72 7.39
1986 6.73 7.38
1985 6.74 7.36
1984 6.73 7.35
1983 6.69 7.34
1982 6.64 7.34
1981 6.57 7.33
1980 6.49 7.33
1979 6.4 7.32
1978 6.32 7.33
1977 6.25 7.33
1976 6.19 7.33
1975 6.15 7.33
1974 6.12 7.31
1973 6.1 7.31
1972 6.08 7.31
1971 6.06 7.3
1970 6.04 7.29
1969 6.02 7.28
1968 6.01 7.26
1967 5.99 7.26
1966 5.98 7.25
1965 5.97 7.22
1964 5.96 7.22
1963 5.95 7.2
1962 5.94 7.2
1961 5.93 7.18
1960 5.92 7.16

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

GeoRank.org/birth-rate/guinea-bissau/south-sudan | CC BY

According to the latest available data on birth rates, the fertility rate in Guinea-Bissau was 3.84 children per woman in 2023, compared to 3.86 in South Sudan in 2023. The replacement level is considered to be 2.1 children per woman.

Check Guinea-Bissau vs South Sudan population clock for a dynamic visualization of the changing population.

Natural population change by year

Guinea-Bissau
South Sudan
1x
Year Natural population change
Guinea-Bissau South Sudan
2023 49,498 217,966
2022 48,920 211,166
2021 47,242 213,567
2020 46,718 212,332
2019 47,196 209,708
2018 46,659 168,497
2017 46,318 72,193
2016 46,814 110,553
2015 46,846 148,542
2014 46,615 227,611
2013 46,472 315,983
2012 45,480 312,974
2011 44,405 303,181
2010 43,067 287,409
2009 41,950 278,859
2008 40,841 268,268
2007 40,288 256,546
2006 38,886 246,706
2005 37,347 239,272
2004 36,495 231,877
2003 35,649 225,822
2002 34,561 212,014
2001 33,461 204,108
2000 32,816 196,055
1999 30,916 180,721
1998 30,390 -12,157
1997 29,792 121,454
1996 29,778 116,728
1995 29,142 110,417
1994 27,895 165,407
1993 26,943 32,779
1992 25,747 28,874
1991 24,527 87,873
1990 23,936 82,900
1989 24,286 83,735
1988 23,940 -125,447
1987 23,549 5,756
1986 23,301 99,502
1985 23,116 95,342
1984 22,861 90,970
1983 22,542 104,107
1982 22,131 118,641
1981 21,611 115,163
1980 21,024 112,307
1979 19,736 109,540
1978 17,468 107,352
1977 15,484 104,886
1976 13,688 102,346
1975 11,998 99,882
1974 10,321 97,181
1973 8,430 94,765
1972 7,911 74,803
1971 8,183 72,308
1970 7,632 44,776
1969 7,857 42,015
1968 7,289 44,213
1967 6,742 41,357
1966 6,955 38,523
1965 7,789 51,682
1964 8,989 64,786
1963 9,190 46,333
1962 10,662 47,406
1961 10,756 45,186
1960 10,618 42,945

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

GeoRank.org/birth-rate/guinea-bissau/south-sudan | 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 +2.3% in Guinea-Bissau and +1.9% in South Sudan.

For the past 10 years, the annual natural population change has been +2.44% in Guinea-Bissau and +1.65% in South Sudan.

Birth rate in Guinea-Bissau vs South Sudan by year

Guinea-Bissau
South Sudan

Annual births per 1,000 people

1x
Year Annual births per 1,000 people
Guinea-Bissau South Sudan
2023 30 28.6
2022 30.5 29.1
2021 31 29.7
2020 31.4 29.4
2019 31.8 29.4
2018 32.4 29.1
2017 33 32.8
2016 34.2 35.1
2015 35.2 35.4
2014 36.1 38.2
2013 37.1 38.3
2012 37.6 39.1
2011 38 39.8
2010 38.3 39.9
2009 38.7 41
2008 39.3 41.6
2007 40 42.3
2006 40.3 43.2
2005 40.6 44.3
2004 40.8 45.5
2003 41.3 46.8
2002 41.6 48
2001 41.8 48.9
2000 42.3 49.8
1999 42.7 50.7
1998 43.2 51.2
1997 43.6 51.6
1996 43.9 52.6
1995 44.3 52.7
1994 44.5 52.7
1993 44.6 52.7
1992 44.8 52.5
1991 44.9 52.4
1990 45.3 52.3
1989 46.5 53.1
1988 46.8 51.9
1987 47.2 50.6
1986 47.7 50.6
1985 48.1 50.7
1984 48.4 50.8
1983 48.7 51.1
1982 48.8 51.4
1981 48.8 51.7
1980 48.6 52
1979 47.8 52.3
1978 45.3 52.7
1977 44 53
1976 42.5 53.4
1975 40.8 53.7
1974 38.8 53.9
1973 39.1 54.3
1972 38.6 54.5
1971 39.5 54.6
1970 38.6 54.5
1969 39.6 54.3
1968 38.8 54
1967 38.6 53.7
1966 40 53.5
1965 41.9 53.1
1964 44 53
1963 44.1 52.7
1962 44.6 52.5
1961 45.2 52.3
1960 45.4 52

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

GeoRank.org/birth-rate/guinea-bissau/south-sudan | CC BY

The latest reported birth rate per 1,000 people in 2023 was 30 in Guinea-Bissau and 28.6 in South Sudan, compared with 45.4 and 52, respectively, in 1960.

Birth rate data compared

Guinea-Bissau South Sudan
Fertility rate 3.84 3.86
Fertility rate rank 32/196 31/196
Birth rate 30 28.6
Birth rate rank 32/196 36/196
Population change due to births and deaths +49,498 +217,966
Natural population change rank 95/196 58/196
Natural population change rate +2.3% +1.9%
Population growth +2.23% +4.01%
Population growth rank 42/197 7/197
Average age at childbearing 29.4 years 28.4 years
Annual births per 1,000 women ages 15-19 78.1 95.7
Annual births per 1,000 women ages 20-29 164.4 173.3
Annual births per 1,000 women ages 30+ 58.1 43.7
Female of reproductive age (15-49), share of population 25.5% 25.1%
Any modern method of contraceptive prevalence among married women ages 15-49 20.2% 1.59%
Share of births attended by skilled health staff 53.8% 39.7%
Maternal mortality per live birth 0.51% 0.69%
Neonatal mortality rate (before reaching 28 days of age) 3.27% 4.02%
Infant mortality rate (before reaching 1 year of age) 4.31% 7.26%
Mortality rate before reaching 5 years of age 6.93% 9.87%
Life expectancy 64.6 years 58 years

Children 0-14 years as share of population

Guinea-Bissau
Factual

UN forecast
South Sudan
Factual

UN forecast
1x
Year Young
Guinea-Bissau South Sudan
2100 19.7% 20.1%
2099 19.8% 20.2%
2098 19.9% 20.3%
2097 20% 20.3%
2096 20.2% 20.4%
2095 20.3% 20.5%
2094 20.4% 20.6%
2093 20.5% 20.7%
2092 20.6% 20.9%
2091 20.8% 21%
2090 20.9% 21.1%
2089 21% 21.2%
2088 21.2% 21.3%
2087 21.3% 21.5%
2086 21.5% 21.6%
2085 21.6% 21.8%
2084 21.8% 21.9%
2083 21.9% 22.1%
2082 22.1% 22.3%
2081 22.2% 22.4%
2080 22.4% 22.6%
2079 22.6% 22.8%
2078 22.7% 23%
2077 22.9% 23.2%
2076 23.1% 23.3%
2075 23.3% 23.5%
2074 23.4% 23.7%
2073 23.6% 23.9%
2072 23.8% 24.1%
2071 24% 24.3%
2070 24.2% 24.5%
2069 24.4% 24.7%
2068 24.6% 25%
2067 24.8% 25.2%
2066 25.1% 25.4%
2065 25.3% 25.6%
2064 25.5% 25.8%
2063 25.7% 26%
2062 26% 26.3%
2061 26.2% 26.5%
2060 26.5% 26.7%
2059 26.7% 27%
2058 27% 27.2%
2057 27.3% 27.5%
2056 27.5% 27.8%
2055 27.8% 28.1%
2054 28.1% 28.5%
2053 28.4% 28.8%
2052 28.7% 29.2%
2051 29% 29.5%
2050 29.3% 29.9%
2049 29.6% 30.3%
2048 29.9% 30.8%
2047 30.2% 31.2%
2046 30.5% 31.6%
2045 30.9% 32%
2044 31.2% 32.4%
2043 31.5% 32.7%
2042 31.9% 33%
2041 32.2% 33.3%
2040 32.5% 33.6%
2039 32.9% 33.8%
2038 33.2% 33.9%
2037 33.6% 34.1%
2036 33.9% 34.2%
2035 34.3% 34.3%
2034 34.6% 34.4%
2033 35% 34.3%
2032 35.3% 34.4%
2031 35.7% 34.6%
2030 36.2% 34.8%
2029 36.6% 35.2%
2028 37.1% 35.8%
2027 37.6% 36.6%
2026 38.1% 37.5%
2025 38.6% 38.4%
2024 38.8% 38.9%
2023 39.2% 39.9%
2022 39.7% 40.9%
2021 40.1% 41.6%
2020 40.5% 42.4%
2019 40.9% 43.6%
2018 41.3% 44.9%
2017 41.7% 45%
2016 42% 43.7%
2015 42.2% 43.1%
2014 42.5% 42.5%
2013 42.7% 41.9%
2012 42.8% 41.9%
2011 43% 42.2%
2010 43.2% 42.8%
2009 43.3% 43.4%
2008 43.5% 43.8%
2007 43.6% 44.3%
2006 43.8% 44.8%
2005 43.9% 45.3%
2004 44% 45.8%
2003 44.2% 45.9%
2002 44.3% 45.7%
2001 44.5% 45.5%
2000 44.7% 45.5%
1999 44.8% 45.6%
1998 45% 45.8%
1997 45.1% 46%
1996 45.2% 46%
1995 45.3% 45.8%
1994 45.4% 45.8%
1993 45.4% 45.7%
1992 45.5% 45.6%
1991 45.5% 45.5%
1990 45.7% 45.4%
1989 45.8% 45.4%
1988 45.9% 46.2%
1987 45.9% 46.9%
1986 46% 46.7%
1985 45.9% 46.6%
1984 45.9% 46.5%
1983 45.7% 46.3%
1982 45.5% 46.2%
1981 45.3% 46%
1980 45% 45.8%
1979 45.1% 45.7%
1978 44.8% 45.5%
1977 43.7% 45.4%
1976 42.6% 45.3%
1975 41.8% 45.2%
1974 41.4% 45.1%
1973 41.6% 45%
1972 41.9% 44.8%
1971 41.9% 44.7%
1970 41.9% 44.5%
1969 41.9% 44.3%
1968 41.8% 44%
1967 42.1% 43.8%
1966 41.9% 43.5%
1965 41% 43.3%
1964 39.6% 43%
1963 38.4% 42.8%
1962 37.7% 42.6%
1961 37.1% 42.6%
1960 36.9% 42.5%

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/guinea-bissau/south-sudan | CC BY

Children aged 0-14 make up 38.8% of the population in Guinea-Bissau and 38.9% in South Sudan in 2024, compared to 45.7% and 45.4% respectively in 1990.

Demographics of Guinea-Bissau and South Sudan compared.

Fertility rates around the globe

1x

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

GeoRank.org/birth-rate/guinea-bissau/south-sudan | CC BY

Maternal mortality chart: Guinea-Bissau vs South Sudan

Guinea-Bissau
South Sudan
1x
Year Maternal mortality per 100K births
Guinea-Bissau South Sudan
2023 505 692
2022 539 704
2021 617 749
2020 603 729
2019 598 745
2018 585 913
2017 597 1,662
2016 617 1,629
2015 631 1,436
2014 662 1,216
2013 707 771
2012 704 755
2011 678 770
2010 698 776
2009 753 823
2008 802 858
2007 792 933
2006 831 1,005
2005 956 1,074
2004 980 1,150
2003 1,069 1,199
2002 1,141 1,521
2001 1,222 1,580
2000 1,295 1,658
1999 1,461 2,048
1998 1,465 7,514
1997 1,642 4,172
1996 1,539 4,357
1995 1,556 4,430
1994 1,644 1,666
1993 1,613 7,537
1992 1,633 7,597
1991 1,663 4,764
1990 1,709 4,877
1989 1,698 5,103
1988 1,759 5,535
1987 1,796 8,045
1986 1,825 3,720
1985 1,851 3,845

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

GeoRank.org/birth-rate/guinea-bissau/south-sudan | CC BY

The maternal mortality rate, which is the probability of dying during childbirth or within 42 days of pregnancy termination, is 505 deaths per 100,000 live births in Guinea-Bissau, compared to 692 deaths in South Sudan.

Under-five mortality rates

Guinea-Bissau
South Sudan

Probability that a newborn baby will die before reaching age five

1x
Year Under 5 mortality rate
Guinea-Bissau South Sudan
2023 6.93% 9.87%
2022 7.16% 9.87%
2021 7.41% 9.87%
2020 7.66% 9.87%
2019 7.91% 9.87%
2018 8.21% 13.2%
2017 8.53% 27.8%
2016 8.84% 26.4%
2015 9.18% 23.7%
2014 9.53% 18.2%
2013 9.93% 9.92%
2012 10.4% 10.1%
2011 10.9% 10.5%
2010 11.4% 10.9%
2009 12% 11.5%
2008 12.6% 12.1%
2007 13.2% 12.7%
2006 13.9% 13.4%
2005 14.5% 14.1%
2004 15.1% 14.8%
2003 15.7% 15.7%
2002 16.3% 16.5%
2001 16.8% 17.4%
2000 17.4% 18.3%
1999 17.9% 19.2%
1998 18.4% 42.6%
1997 18.9% 25.2%
1996 19.4% 26.1%
1995 19.9% 27%
1994 20.4% 23%
1993 20.9% 33.1%
1992 21.3% 33.8%
1991 21.8% 29.7%
1990 22.2% 30.3%
1989 22.7% 30.7%
1988 23.1% 76.7%
1987 23.5% 36%
1986 24% 26.7%
1985 24.4% 27.1%
1984 - 27.5%
1983 - 27.8%
1982 - 28.2%
1981 - 28.5%
1980 - 28.9%
1979 - 29.2%
1978 - 29.5%
1977 - 29.9%
1976 - 30.2%
1975 - 30.6%
1974 - 30.9%
1973 - 31.3%
1972 - 31.6%
1971 - 31.9%
1970 - 32.3%
1969 - 32.6%
1968 - 32.9%
1967 - 33.3%
1966 - 33.6%
1965 - 34%
1964 - 34.3%
1963 - 34.6%
1962 - 34.9%
1961 - 35.2%
1960 - 35.5%

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

GeoRank.org/birth-rate/guinea-bissau/south-sudan | CC BY

The chance that a newborn baby will die before reaching age five is 6.93% in Guinea-Bissau and 9.87% in South Sudan. 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)

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