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Fertility & birth rates in Brunei and South Sudan

Updated on by Georank team

Brunei has an annual birth rate of 13.6 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 1.75 in Brunei and 3.86 in South Sudan — 121.2% difference.

1960 vs 2023, the fertility rate has decreased by 76.1% in Brunei and by 46% in South Sudan — in 1960, it was 7.32 and 7.16, respectively.

  • Brunei is ranked 105/196 by birth rate compared to 36/196 for South Sudan.
  • The mean age at childbearing (for all the births, not just the first) is 30.8 in Brunei — it's 28.4 in South Sudan.
  • Annual births per 1,000 women ages 15-19 (adolescent birth rate or teenage mother rate) is 8.52 in Brunei vs 97.1 in South Sudan.
  • In Brunei, 25.7% of the population is composed of women of reproductive age (15-49), compared to 25.1% in South Sudan.

Fertility rate in Brunei vs South Sudan by year

Brunei
South Sudan
1x
Year Fertility rate
Brunei South Sudan
2023 1.75 3.86
2022 1.76 3.96
2021 1.78 4.05
2020 1.8 4.16
2019 1.82 4.26
2018 1.85 4.37
2017 1.88 4.48
2016 1.92 4.58
2015 1.95 4.7
2014 1.97 4.82
2013 1.98 4.94
2012 1.97 5.06
2011 1.96 5.19
2010 1.94 5.32
2009 1.92 5.45
2008 1.92 5.57
2007 1.93 5.7
2006 1.97 5.85
2005 2.02 6.02
2004 2.1 6.19
2003 2.19 6.35
2002 2.26 6.52
2001 2.34 6.65
2000 2.4 6.8
1999 2.46 6.94
1998 2.53 7.08
1997 2.6 7.2
1996 2.68 7.32
1995 2.79 7.34
1994 2.9 7.35
1993 3.01 7.36
1992 3.11 7.37
1991 3.21 7.38
1990 3.29 7.38
1989 3.36 7.37
1988 3.44 7.38
1987 3.49 7.39
1986 3.55 7.38
1985 3.61 7.36
1984 3.68 7.35
1983 3.75 7.34
1982 3.84 7.34
1981 3.94 7.33
1980 4.07 7.33
1979 4.22 7.32
1978 4.39 7.33
1977 4.58 7.33
1976 4.78 7.33
1975 4.99 7.33
1974 5.18 7.31
1973 5.36 7.31
1972 5.5 7.31
1971 5.62 7.3
1970 5.8 7.29
1969 6.01 7.28
1968 6.2 7.26
1967 6.37 7.26
1966 6.51 7.25
1965 6.65 7.22
1964 6.77 7.22
1963 6.89 7.2
1962 7.03 7.2
1961 7.19 7.18
1960 7.32 7.16

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

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

According to the latest available data on birth rates, the fertility rate in Brunei was 1.75 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 Brunei vs South Sudan population clock for a dynamic visualization of the changing population.

Natural population change by year

Brunei
South Sudan
1x
Year Natural population change
Brunei South Sudan
2023 3,837 217,966
2022 3,319 211,166
2021 3,985 213,567
2020 4,188 212,332
2019 4,335 209,708
2018 4,502 168,497
2017 4,685 72,193
2016 4,876 110,553
2015 5,060 148,542
2014 5,206 227,611
2013 5,302 315,983
2012 5,349 312,974
2011 5,242 303,181
2010 5,003 287,409
2009 4,789 278,859
2008 4,624 268,268
2007 4,521 256,546
2006 4,590 246,706
2005 4,703 239,272
2004 4,874 231,877
2003 5,034 225,822
2002 5,169 212,014
2001 5,275 204,108
2000 5,331 196,055
1999 5,388 180,721
1998 5,466 -12,157
1997 5,518 121,454
1996 5,606 116,728
1995 5,750 110,417
1994 5,907 165,407
1993 6,045 32,779
1992 6,169 28,874
1991 6,259 87,873
1990 6,265 82,900
1989 6,202 83,735
1988 6,135 -125,447
1987 6,017 5,756
1986 5,826 99,502
1985 5,620 95,342
1984 5,373 90,970
1983 5,138 104,107
1982 4,931 118,641
1981 4,839 115,163
1980 4,775 112,307
1979 4,717 109,540
1978 4,668 107,352
1977 4,594 104,886
1976 4,518 102,346
1975 4,431 99,882
1974 4,334 97,181
1973 4,216 94,765
1972 4,085 74,803
1971 3,880 72,308
1970 3,694 44,776
1969 3,618 42,015
1968 3,551 44,213
1967 3,477 41,357
1966 3,403 38,523
1965 3,326 51,682
1964 3,264 64,786
1963 3,195 46,333
1962 3,128 47,406
1961 3,175 45,186
1960 3,168 42,945

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

GeoRank.org/birth-rate/brunei/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 +0.84% in Brunei and +1.9% in South Sudan.

For the past 10 years, the annual natural population change has been +1.01% in Brunei and +1.65% in South Sudan.

Birth rate in Brunei vs South Sudan by year

Brunei
South Sudan

Annual births per 1,000 people

1x
Year Annual births per 1,000 people
Brunei South Sudan
2023 13.6 28.6
2022 13.8 29.1
2021 14.1 29.7
2020 14.3 29.4
2019 14.6 29.4
2018 14.9 29.1
2017 15.3 32.8
2016 15.8 35.1
2015 16.2 35.4
2014 16.6 38.2
2013 16.9 38.3
2012 17.1 39.1
2011 17 39.8
2010 16.6 39.9
2009 16.2 41
2008 16 41.6
2007 15.9 42.3
2006 16.3 43.2
2005 16.7 44.3
2004 17.4 45.5
2003 18 46.8
2002 18.7 48
2001 19.3 48.9
2000 19.8 49.8
1999 20.4 50.7
1998 21 51.2
1997 21.6 51.6
1996 22.4 52.6
1995 23.4 52.7
1994 24.5 52.7
1993 25.6 52.7
1992 26.7 52.5
1991 27.7 52.4
1990 28.5 52.3
1989 29 53.1
1988 29.5 51.9
1987 29.8 50.6
1986 29.9 50.6
1985 29.9 50.7
1984 29.7 50.8
1983 29.4 51.1
1982 29.3 51.4
1981 29.7 51.7
1980 30.3 52
1979 30.9 52.3
1978 31.6 52.7
1977 32.2 53
1976 32.8 53.4
1975 33.4 53.7
1974 34 53.9
1973 34.5 54.3
1972 34.9 54.5
1971 34.6 54.6
1970 34.3 54.5
1969 34.7 54.3
1968 35.6 54
1967 36.5 53.7
1966 37.5 53.5
1965 38.6 53.1
1964 39.7 53
1963 41 52.7
1962 42.8 52.5
1961 45 52.3
1960 47.2 52

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

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

The latest reported birth rate per 1,000 people in 2023 was 13.6 in Brunei and 28.6 in South Sudan, compared with 47.2 and 52, respectively, in 1960.

Birth rate data compared

Brunei South Sudan
Fertility rate 1.75 3.86
Fertility rate rank 115/196 31/196
Birth rate 13.6 28.6
Birth rate rank 105/196 36/196
Population change due to births and deaths +3,837 +217,966
Natural population change rank 132/196 58/196
Natural population change rate +0.84% +1.9%
Population growth +0.82% +4.01%
Population growth rank 114/197 7/197
Average age at childbearing 30.8 years 28.4 years
Annual births per 1,000 women ages 15-19 7.18 95.7
Annual births per 1,000 women ages 20-29 73.5 173.3
Annual births per 1,000 women ages 30+ 26.8 43.7
Female of reproductive age (15-49), share of population 25.7% 25.1%
Any modern method of contraceptive prevalence among married women ages 15-49 n/a 1.59%
Share of births attended by skilled health staff 99.6% 39.7%
Maternal mortality per live birth 0.04% 0.69%
Neonatal mortality rate (before reaching 28 days of age) 0.49% 4.02%
Infant mortality rate (before reaching 1 year of age) 0.82% 7.26%
Mortality rate before reaching 5 years of age 0.94% 9.87%
Life expectancy 75.8 years 58 years

Children 0-14 years as share of population

Brunei
Factual

UN forecast
South Sudan
Factual

UN forecast
1x
Year Young
Brunei South Sudan
2100 13.8% 20.1%
2099 13.9% 20.2%
2098 13.9% 20.3%
2097 13.9% 20.3%
2096 14% 20.4%
2095 14% 20.5%
2094 14.1% 20.6%
2093 14.1% 20.7%
2092 14.1% 20.9%
2091 14.1% 21%
2090 14.2% 21.1%
2089 14.2% 21.2%
2088 14.2% 21.3%
2087 14.2% 21.5%
2086 14.2% 21.6%
2085 14.2% 21.8%
2084 14.2% 21.9%
2083 14.2% 22.1%
2082 14.2% 22.3%
2081 14.2% 22.4%
2080 14.2% 22.6%
2079 14.2% 22.8%
2078 14.2% 23%
2077 14.2% 23.2%
2076 14.2% 23.3%
2075 14.2% 23.5%
2074 14.3% 23.7%
2073 14.3% 23.9%
2072 14.3% 24.1%
2071 14.4% 24.3%
2070 14.4% 24.5%
2069 14.5% 24.7%
2068 14.6% 25%
2067 14.6% 25.2%
2066 14.7% 25.4%
2065 14.8% 25.6%
2064 14.8% 25.8%
2063 14.9% 26%
2062 15% 26.3%
2061 15% 26.5%
2060 15.1% 26.7%
2059 15.2% 27%
2058 15.2% 27.2%
2057 15.3% 27.5%
2056 15.3% 27.8%
2055 15.4% 28.1%
2054 15.4% 28.5%
2053 15.4% 28.8%
2052 15.5% 29.2%
2051 15.5% 29.5%
2050 15.6% 29.9%
2049 15.6% 30.3%
2048 15.7% 30.8%
2047 15.8% 31.2%
2046 15.9% 31.6%
2045 16% 32%
2044 16.1% 32.4%
2043 16.2% 32.7%
2042 16.3% 33%
2041 16.5% 33.3%
2040 16.7% 33.6%
2039 16.9% 33.8%
2038 17.1% 33.9%
2037 17.4% 34.1%
2036 17.6% 34.2%
2035 17.9% 34.3%
2034 18.1% 34.4%
2033 18.4% 34.3%
2032 18.7% 34.4%
2031 19% 34.6%
2030 19.3% 34.8%
2029 19.6% 35.2%
2028 20% 35.8%
2027 20.3% 36.6%
2026 20.5% 37.5%
2025 20.7% 38.4%
2024 20.8% 38.9%
2023 21% 39.9%
2022 21.2% 40.9%
2021 21.3% 41.6%
2020 21.6% 42.4%
2019 21.9% 43.6%
2018 22.3% 44.9%
2017 22.7% 45%
2016 23.1% 43.7%
2015 23.6% 43.1%
2014 24% 42.5%
2013 24.5% 41.9%
2012 24.9% 41.9%
2011 25.2% 42.2%
2010 25.3% 42.8%
2009 25.4% 43.4%
2008 25.5% 43.8%
2007 25.5% 44.3%
2006 25.9% 44.8%
2005 26.7% 45.3%
2004 27.4% 45.8%
2003 28.1% 45.9%
2002 28.9% 45.7%
2001 29.6% 45.5%
2000 30.3% 45.5%
1999 31% 45.6%
1998 31.6% 45.8%
1997 32.2% 46%
1996 32.7% 46%
1995 33.3% 45.8%
1994 33.7% 45.8%
1993 34.1% 45.7%
1992 34.3% 45.6%
1991 34.4% 45.5%
1990 34.4% 45.4%
1989 34.6% 45.4%
1988 34.7% 46.2%
1987 34.9% 46.9%
1986 35.2% 46.7%
1985 35.7% 46.6%
1984 36.3% 46.5%
1983 36.9% 46.3%
1982 37.6% 46.2%
1981 38.1% 46%
1980 38.5% 45.8%
1979 38.9% 45.7%
1978 39.3% 45.5%
1977 39.9% 45.4%
1976 40.6% 45.3%
1975 41.3% 45.2%
1974 42% 45.1%
1973 42.6% 45%
1972 43% 44.8%
1971 43.3% 44.7%
1970 43.6% 44.5%
1969 44.2% 44.3%
1968 44.8% 44%
1967 45.4% 43.8%
1966 46% 43.5%
1965 46.5% 43.3%
1964 46.6% 43%
1963 46.6% 42.8%
1962 46.1% 42.6%
1961 45.2% 42.6%
1960 44.1% 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/brunei/south-sudan | CC BY

Children aged 0-14 make up 20.8% of the population in Brunei and 38.9% in South Sudan in 2024, compared to 34.4% and 45.4% respectively in 1990.

Demographics of Brunei 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/brunei/south-sudan | CC BY

Maternal mortality chart: Brunei vs South Sudan

Brunei
South Sudan
1x
Year Maternal mortality per 100K births
Brunei South Sudan
2023 36 692
2022 88 704
2021 44 749
2020 39 729
2019 38 745
2018 39 913
2017 39 1,662
2016 39 1,629
2015 39 1,436
2014 40 1,216
2013 40 771
2012 40 755
2011 40 770
2010 40 776
2009 40 823
2008 40 858
2007 41 933
2006 42 1,005
2005 43 1,074
2004 44 1,150
2003 45 1,199
2002 46 1,521
2001 46 1,580
2000 48 1,658
1999 50 2,048
1998 51 7,514
1997 52 4,172
1996 54 4,357
1995 55 4,430
1994 58 1,666
1993 59 7,537
1992 62 7,597
1991 65 4,764
1990 68 4,877
1989 71 5,103
1988 73 5,535
1987 75 8,045
1986 78 3,720
1985 79 3,845

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

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

The maternal mortality rate, which is the probability of dying during childbirth or within 42 days of pregnancy termination, is 36 deaths per 100,000 live births in Brunei, compared to 692 deaths in South Sudan.

Under-five mortality rates

Brunei
South Sudan

Probability that a newborn baby will die before reaching age five

1x
Year Under 5 mortality rate
Brunei South Sudan
2023 0.94% 9.87%
2022 0.95% 9.87%
2021 0.96% 9.87%
2020 0.97% 9.87%
2019 0.98% 9.87%
2018 0.99% 13.2%
2017 1% 27.8%
2016 1% 26.4%
2015 1% 23.7%
2014 1% 18.2%
2013 0.99% 9.92%
2012 0.99% 10.1%
2011 0.98% 10.5%
2010 0.97% 10.9%
2009 0.96% 11.5%
2008 0.96% 12.1%
2007 0.95% 12.7%
2006 0.95% 13.4%
2005 0.95% 14.1%
2004 0.95% 14.8%
2003 0.96% 15.7%
2002 0.98% 16.5%
2001 1% 17.4%
2000 1.03% 18.3%
1999 1.07% 19.2%
1998 1.1% 42.6%
1997 1.15% 25.2%
1996 1.19% 26.1%
1995 1.23% 27%
1994 1.27% 23%
1993 1.3% 33.1%
1992 1.31% 33.8%
1991 1.32% 29.7%
1990 1.33% 30.3%
1989 1.35% 30.7%
1988 1.38% 76.7%
1987 1.42% 36%
1986 1.48% 26.7%
1985 1.57% 27.1%
1984 1.67% 27.5%
1983 1.79% 27.8%
1982 1.93% 28.2%
1981 2.09% 28.5%
1980 2.28% 28.9%
1979 2.48% 29.2%
1978 2.71% 29.5%
1977 2.95% 29.9%
1976 3.21% 30.2%
1975 3.49% 30.6%
1974 3.77% 30.9%
1973 4.06% 31.3%
1972 4.35% 31.6%
1971 4.64% 31.9%
1970 4.91% 32.3%
1969 5.16% 32.6%
1968 5.42% 32.9%
1967 5.69% 33.3%
1966 5.98% 33.6%
1965 6.32% 34%
1964 6.7% 34.3%
1963 7.15% 34.6%
1962 7.66% 34.9%
1961 8.24% 35.2%
1960 8.9% 35.5%

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

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

The chance that a newborn baby will die before reaching age five is 0.94% in Brunei 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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