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Fertility & birth rates in Japan and South Sudan

Updated on by Georank team

Japan has an annual birth rate of 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 1.2 in Japan and 3.86 in South Sudan — 222% difference.

1960 vs 2023, the fertility rate has decreased by 40% in Japan and by 46% in South Sudan — in 1960, it was 2 and 7.16, respectively.

  • Japan is ranked 192/196 by birth rate compared to 36/196 for South Sudan.
  • The mean age at childbearing (for all the births, not just the first) is 32.2 in Japan — it's 28.4 in South Sudan.
  • Annual births per 1,000 women ages 15-19 (adolescent birth rate or teenage mother rate) is 1.74 in Japan vs 97.1 in South Sudan.
  • In Japan, 18.6% of the population is composed of women of reproductive age (15-49), compared to 25.1% in South Sudan.

Fertility rate in Japan vs South Sudan by year

Japan
South Sudan
1x
Year Fertility rate
Japan South Sudan
2023 1.2 3.86
2022 1.26 3.96
2021 1.3 4.05
2020 1.33 4.16
2019 1.36 4.26
2018 1.42 4.37
2017 1.43 4.48
2016 1.44 4.58
2015 1.45 4.7
2014 1.42 4.82
2013 1.43 4.94
2012 1.41 5.06
2011 1.39 5.19
2010 1.39 5.32
2009 1.37 5.45
2008 1.37 5.57
2007 1.34 5.7
2006 1.32 5.85
2005 1.26 6.02
2004 1.29 6.19
2003 1.29 6.35
2002 1.32 6.52
2001 1.33 6.65
2000 1.36 6.8
1999 1.34 6.94
1998 1.38 7.08
1997 1.39 7.2
1996 1.43 7.32
1995 1.42 7.34
1994 1.5 7.35
1993 1.46 7.36
1992 1.5 7.37
1991 1.53 7.38
1990 1.54 7.38
1989 1.57 7.37
1988 1.66 7.38
1987 1.69 7.39
1986 1.72 7.38
1985 1.76 7.36
1984 1.81 7.35
1983 1.8 7.34
1982 1.77 7.34
1981 1.74 7.33
1980 1.75 7.33
1979 1.77 7.32
1978 1.79 7.33
1977 1.8 7.33
1976 1.85 7.33
1975 1.91 7.33
1974 2.05 7.31
1973 2.14 7.31
1972 2.14 7.31
1971 2.16 7.3
1970 2.13 7.29
1969 2.13 7.28
1968 2.13 7.26
1967 2.23 7.26
1966 1.58 7.25
1965 2.14 7.22
1964 2.05 7.22
1963 2 7.2
1962 1.98 7.2
1961 1.96 7.18
1960 2 7.16

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

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

According to the latest available data on birth rates, the fertility rate in Japan was 1.2 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 Japan vs South Sudan population clock for a dynamic visualization of the changing population.

Natural population change by year

Japan
South Sudan
1x
Year Natural population change
Japan South Sudan
2023 -871,617 217,966
2022 -825,825 211,166
2021 -640,976 213,567
2020 -542,923 212,332
2019 -531,858 209,708
2018 -456,520 168,497
2017 -406,310 72,193
2016 -343,106 110,553
2015 -292,424 148,542
2014 -267,279 227,611
2013 -242,146 315,983
2012 -229,733 312,974
2011 -204,533 303,181
2010 -128,070 287,409
2009 -76,828 278,859
2008 -51,225 268,268
2007 -25,600 256,546
2006 12,785 246,706
2005 -25,554 239,272
2004 76,656 231,877
2003 114,946 225,822
2002 178,423 212,014
2001 203,438 204,108
2000 228,317 196,055
1999 202,610 180,721
1998 265,440 -12,157
1997 277,325 121,454
1996 314,392 116,728
1995 276,039 110,417
1994 363,017 165,407
1993 312,073 32,779
1992 360,833 28,874
1991 396,685 87,873
1990 407,478 82,900
1989 467,662 83,735
1988 527,085 -125,447
1987 598,138 5,756
1986 631,706 99,502
1985 676,687 95,342
1984 756,523 90,970
1983 775,495 104,107
1982 805,664 118,641
1981 811,861 115,163
1980 864,372 112,307
1979 950,298 109,540
1978 1,011,234 107,352
1977 1,070,397 104,886
1976 1,127,750 102,346
1975 1,204,989 99,882
1974 1,332,960 97,181
1973 1,391,449 94,765
1972 1,372,006 74,803
1971 1,331,782 72,308
1970 1,230,496 44,776
1969 1,195,962 42,015
1968 1,191,930 44,213
1967 1,258,475 41,357
1966 682,072 38,523
1965 1,126,448 51,682
1964 1,046,553 64,786
1963 987,770 46,333
1962 901,864 47,406
1961 893,522 45,186
1960 894,874 42,945

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

GeoRank.org/birth-rate/japan/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 -0.7% in Japan and +1.9% in South Sudan.

For the past 10 years, the annual natural population change has been -0.41% in Japan and +1.65% in South Sudan.

Birth rate in Japan vs South Sudan by year

Japan
South Sudan

Annual births per 1,000 people

1x
Year Annual births per 1,000 people
Japan South Sudan
2023 6 28.6
2022 6.3 29.1
2021 6.6 29.7
2020 6.8 29.4
2019 7 29.4
2018 7.4 29.1
2017 7.6 32.8
2016 7.8 35.1
2015 8 35.4
2014 8 38.2
2013 8.2 38.3
2012 8.2 39.1
2011 8.3 39.8
2010 8.5 39.9
2009 8.5 41
2008 8.7 41.6
2007 8.6 42.3
2006 8.7 43.2
2005 8.4 44.3
2004 8.8 45.5
2003 8.9 46.8
2002 9.2 48
2001 9.3 48.9
2000 9.5 49.8
1999 9.4 50.7
1998 9.6 51.2
1997 9.5 51.6
1996 9.7 52.6
1995 9.6 52.7
1994 10 52.7
1993 9.6 52.7
1992 9.8 52.5
1991 9.9 52.4
1990 10 52.3
1989 10.2 53.1
1988 10.8 51.9
1987 11.1 50.6
1986 11.4 50.6
1985 11.9 50.7
1984 12.5 50.8
1983 12.7 51.1
1982 12.8 51.4
1981 13 51.7
1980 13.6 52
1979 14.2 52.3
1978 14.9 52.7
1977 15.5 53
1976 16.3 53.4
1975 17.1 53.7
1974 18.6 53.9
1973 19.4 54.3
1972 19.3 54.5
1971 19.2 54.6
1970 18.8 54.5
1969 18.5 54.3
1968 18.6 54
1967 19.4 53.7
1966 13.7 53.5
1965 18.6 53.1
1964 17.7 53
1963 17.3 52.7
1962 17 52.5
1961 16.9 52.3
1960 17.2 52

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

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

The latest reported birth rate per 1,000 people in 2023 was 6 in Japan and 28.6 in South Sudan, compared with 17.2 and 52, respectively, in 1960.

Birth rate data compared

Japan South Sudan
Fertility rate 1.2 3.86
Fertility rate rank 183/196 31/196
Birth rate 6 28.6
Birth rate rank 192/196 36/196
Population change due to births and deaths -871,617 +217,966
Natural population change rank 195/196 58/196
Natural population change rate -0.7% +1.9%
Population growth -0.43% +4.01%
Population growth rank 185/197 7/197
Age at first childbirth 30.7 years n/a
Average age at childbearing 32.2 years 28.4 years
Annual births per 1,000 women ages 15-19 1.46 95.7
Annual births per 1,000 women ages 20-29 40.5 173.3
Annual births per 1,000 women ages 30+ 10.5 43.7
Female of reproductive age (15-49), share of population 18.6% 25.1%
Any modern method of contraceptive prevalence among married women ages 15-49 52.8% 1.59%
Share of births attended by skilled health staff 99.8% 39.7%
Maternal mortality per live birth 0.003% 0.69%
Neonatal mortality rate (before reaching 28 days of age) 0.08% 4.02%
Infant mortality rate (before reaching 1 year of age) 0.18% 7.26%
Mortality rate before reaching 5 years of age 0.24% 9.87%
Life expectancy 85.1 years 58 years

Children 0-14 years as share of population

Japan
Factual

UN forecast
South Sudan
Factual

UN forecast
1x
Year Young
Japan South Sudan
2100 11.5% 20.1%
2099 11.5% 20.2%
2098 11.5% 20.3%
2097 11.5% 20.3%
2096 11.6% 20.4%
2095 11.6% 20.5%
2094 11.6% 20.6%
2093 11.7% 20.7%
2092 11.7% 20.9%
2091 11.8% 21%
2090 11.8% 21.1%
2089 11.8% 21.2%
2088 11.8% 21.3%
2087 11.9% 21.5%
2086 11.9% 21.6%
2085 11.8% 21.8%
2084 11.8% 21.9%
2083 11.8% 22.1%
2082 11.8% 22.3%
2081 11.7% 22.4%
2080 11.6% 22.6%
2079 11.6% 22.8%
2078 11.5% 23%
2077 11.4% 23.2%
2076 11.3% 23.3%
2075 11.2% 23.5%
2074 11.1% 23.7%
2073 11.1% 23.9%
2072 11% 24.1%
2071 10.9% 24.3%
2070 10.9% 24.5%
2069 10.8% 24.7%
2068 10.8% 25%
2067 10.8% 25.2%
2066 10.8% 25.4%
2065 10.8% 25.6%
2064 10.8% 25.8%
2063 10.8% 26%
2062 10.9% 26.3%
2061 10.9% 26.5%
2060 11% 26.7%
2059 11% 27%
2058 11.1% 27.2%
2057 11.1% 27.5%
2056 11.2% 27.8%
2055 11.2% 28.1%
2054 11.3% 28.5%
2053 11.3% 28.8%
2052 11.3% 29.2%
2051 11.3% 29.5%
2050 11.2% 29.9%
2049 11.2% 30.3%
2048 11.1% 30.8%
2047 11.1% 31.2%
2046 11% 31.6%
2045 10.9% 32%
2044 10.8% 32.4%
2043 10.7% 32.7%
2042 10.6% 33%
2041 10.5% 33.3%
2040 10.4% 33.6%
2039 10.3% 33.8%
2038 10.2% 33.9%
2037 10.1% 34.1%
2036 10.1% 34.2%
2035 10.1% 34.3%
2034 10.1% 34.4%
2033 10.1% 34.3%
2032 10.2% 34.4%
2031 10.3% 34.6%
2030 10.5% 34.8%
2029 10.6% 35.2%
2028 10.8% 35.8%
2027 11% 36.6%
2026 11.1% 37.5%
2025 11.3% 38.4%
2024 11.4% 38.9%
2023 11.6% 39.9%
2022 11.9% 40.9%
2021 12% 41.6%
2020 12.2% 42.4%
2019 12.4% 43.6%
2018 12.5% 44.9%
2017 12.6% 45%
2016 12.7% 43.7%
2015 12.8% 43.1%
2014 13% 42.5%
2013 13.1% 41.9%
2012 13.2% 41.9%
2011 13.3% 42.2%
2010 13.4% 42.8%
2009 13.5% 43.4%
2008 13.5% 43.8%
2007 13.6% 44.3%
2006 13.7% 44.8%
2005 13.8% 45.3%
2004 13.8% 45.8%
2003 13.9% 45.9%
2002 14.1% 45.7%
2001 14.2% 45.5%
2000 14.4% 45.5%
1999 14.6% 45.6%
1998 14.8% 45.8%
1997 15.1% 46%
1996 15.3% 46%
1995 15.6% 45.8%
1994 16% 45.8%
1993 16.4% 45.7%
1992 16.9% 45.6%
1991 17.4% 45.5%
1990 18% 45.4%
1989 18.8% 45.4%
1988 19.5% 46.2%
1987 20.3% 46.9%
1986 21% 46.7%
1985 21.7% 46.6%
1984 22.2% 46.5%
1983 22.6% 46.3%
1982 23.1% 46.2%
1981 23.3% 46%
1980 23.4% 45.8%
1979 23.7% 45.7%
1978 23.8% 45.5%
1977 23.9% 45.4%
1976 23.9% 45.3%
1975 23.8% 45.2%
1974 23.8% 45.1%
1973 23.6% 45%
1972 23.4% 44.8%
1971 23.3% 44.7%
1970 23.3% 44.5%
1969 23.4% 44.3%
1968 23.5% 44%
1967 23.8% 43.8%
1966 24.4% 43.5%
1965 25.1% 43.3%
1964 25.8% 43%
1963 26.8% 42.8%
1962 28% 42.6%
1961 29.1% 42.6%
1960 29.8% 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/japan/south-sudan | CC BY

Children aged 0-14 make up 11.4% of the population in Japan and 38.9% in South Sudan in 2024, compared to 18% and 45.4% respectively in 1990.

Demographics of Japan 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/japan/south-sudan | CC BY

Maternal mortality chart: Japan vs South Sudan

Japan
South Sudan
1x
Year Maternal mortality per 100K births
Japan South Sudan
2023 3 692
2022 5 704
2021 4 749
2020 4 729
2019 5 745
2018 5 913
2017 5 1,662
2016 5 1,629
2015 5 1,436
2014 5 1,216
2013 5 771
2012 6 755
2011 6 770
2010 6 776
2009 6 823
2008 6 858
2007 6 933
2006 7 1,005
2005 7 1,074
2004 7 1,150
2003 8 1,199
2002 8 1,521
2001 8 1,580
2000 9 1,658
1999 9 2,048
1998 10 7,514
1997 10 4,172
1996 11 4,357
1995 11 4,430
1994 11 1,666
1993 12 7,537
1992 13 7,597
1991 13 4,764
1990 14 4,877
1989 15 5,103
1988 16 5,535
1987 17 8,045
1986 18 3,720
1985 19 3,845

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

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

The maternal mortality rate, which is the probability of dying during childbirth or within 42 days of pregnancy termination, is 3 deaths per 100,000 live births in Japan, compared to 692 deaths in South Sudan.

Under-five mortality rates

Japan
South Sudan

Probability that a newborn baby will die before reaching age five

1x
Year Under 5 mortality rate
Japan South Sudan
2023 0.24% 9.87%
2022 0.24% 9.87%
2021 0.24% 9.87%
2020 0.24% 9.87%
2019 0.25% 9.87%
2018 0.25% 13.2%
2017 0.26% 27.8%
2016 0.27% 26.4%
2015 0.28% 23.7%
2014 0.29% 18.2%
2013 0.3% 9.92%
2012 0.31% 10.1%
2011 0.33% 10.5%
2010 0.33% 10.9%
2009 0.34% 11.5%
2008 0.34% 12.1%
2007 0.35% 12.7%
2006 0.36% 13.4%
2005 0.37% 14.1%
2004 0.39% 14.8%
2003 0.4% 15.7%
2002 0.41% 16.5%
2001 0.43% 17.4%
2000 0.45% 18.3%
1999 0.47% 19.2%
1998 0.5% 42.6%
1997 0.52% 25.2%
1996 0.55% 26.1%
1995 0.57% 27%
1994 0.59% 23%
1993 0.6% 33.1%
1992 0.61% 33.8%
1991 0.62% 29.7%
1990 0.63% 30.3%
1989 0.64% 30.7%
1988 0.66% 76.7%
1987 0.68% 36%
1986 0.71% 26.7%
1985 0.75% 27.1%
1984 0.79% 27.5%
1983 0.83% 27.8%
1982 0.88% 28.2%
1981 0.93% 28.5%
1980 0.99% 28.9%
1979 1.05% 29.2%
1978 1.11% 29.5%
1977 1.18% 29.9%
1976 1.25% 30.2%
1975 1.33% 30.6%
1974 1.41% 30.9%
1973 1.49% 31.3%
1972 1.57% 31.6%
1971 1.65% 31.9%
1970 1.75% 32.3%
1969 1.85% 32.6%
1968 1.96% 32.9%
1967 2.1% 33.3%
1966 2.26% 33.6%
1965 2.46% 34%
1964 2.7% 34.3%
1963 2.98% 34.6%
1962 3.29% 34.9%
1961 3.62% 35.2%
1960 3.97% 35.5%

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

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

The chance that a newborn baby will die before reaching age five is 0.24% in Japan 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)
  3. Central Intelligence Agency (CIA) (2025, retrieved 2026-02-20)

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