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Fertility & birth rates in South Korea and Tanzania

Updated on by Georank team

South Korea has an annual birth rate of 4.5 births per 1,000 people, compared to 35.2 for Tanzania. The average number of children a woman is expected to have during her lifetime — the fertility rate, is 0.72 in South Korea and 4.61 in Tanzania — 539% difference.

1960 vs 2023, the fertility rate has decreased by 88% in South Korea and by 29.5% in Tanzania — in 1960, it was 5.99 and 6.54, respectively.

  • South Korea is ranked 196/196 by birth rate compared to 10/196 for Tanzania.
  • The mean age for first-time mothers is 32.2 years in South Korea, compared to 19.9 years in Tanzania.
  • The mean age at childbearing (for all the births, not just the first) is 33.4 in South Korea — it's 28.9 in Tanzania.
  • Annual births per 1,000 women ages 15-19 (adolescent birth rate or teenage mother rate) is 0.54 in South Korea vs 113.2 in Tanzania.
  • In South Korea, 21.7% of the population is composed of women of reproductive age (15-49), compared to 24.2% in Tanzania.

Fertility rate in South Korea vs Tanzania by year

South Korea
Tanzania
1x
Year Fertility rate
South Korea Tanzania
2023 0.72 4.61
2022 0.78 4.67
2021 0.81 4.73
2020 0.84 4.8
2019 0.92 4.87
2018 0.98 4.93
2017 1.05 4.99
2016 1.17 5.01
2015 1.24 5.03
2014 1.21 5.12
2013 1.19 5.16
2012 1.3 5.14
2011 1.24 5.14
2010 1.23 5.23
2009 1.15 5.26
2008 1.19 5.32
2007 1.26 5.4
2006 1.13 5.51
2005 1.09 5.58
2004 1.16 5.6
2003 1.19 5.58
2002 1.18 5.57
2001 1.31 5.62
2000 1.48 5.67
1999 1.43 5.75
1998 1.46 5.81
1997 1.54 5.84
1996 1.57 5.83
1995 1.63 5.82
1994 1.66 5.89
1993 1.65 6
1992 1.76 6.08
1991 1.71 6.14
1990 1.57 6.2
1989 1.56 6.3
1988 1.55 6.38
1987 1.53 6.41
1986 1.58 6.49
1985 1.66 6.6
1984 1.74 6.72
1983 2.06 6.81
1982 2.39 6.87
1981 2.57 6.93
1980 2.82 6.99
1979 2.9 7.04
1978 2.64 7.06
1977 2.99 7.07
1976 3 7.09
1975 3.43 7.1
1974 3.77 7.12
1973 4.07 7.06
1972 4.12 7.05
1971 4.54 7.04
1970 4.53 7
1969 4.45 6.95
1968 4.51 6.9
1967 4.62 6.86
1966 4.78 6.8
1965 4.89 6.73
1964 5.07 6.68
1963 5.33 6.65
1962 5.56 6.61
1961 5.8 6.56
1960 5.99 6.54

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

GeoRank.org/birth-rate/south-korea/tanzania | CC BY

According to the latest available data on birth rates, the fertility rate in South Korea was 0.72 children per woman in 2023, compared to 4.61 in Tanzania in 2023. The replacement level is considered to be 2.1 children per woman.

Check South Korea vs Tanzania population clock for a dynamic visualization of the changing population.

Natural population change by year

South Korea
Tanzania
1x
Year Natural population change
South Korea Tanzania
2023 -77,569 1,960,623
2022 -124,014 1,927,960
2021 -56,947 1,880,137
2020 -31,101 1,861,377
2019 10,353 1,816,669
2018 30,951 1,777,852
2017 71,907 1,726,909
2016 122,923 1,659,502
2015 163,248 1,592,882
2014 167,464 1,565,630
2013 166,415 1,509,008
2012 215,859 1,439,325
2011 214,728 1,384,886
2010 213,083 1,363,477
2009 197,231 1,332,015
2008 215,841 1,303,728
2007 248,286 1,278,285
2006 203,441 1,257,927
2005 187,920 1,224,165
2004 225,988 1,175,379
2003 244,251 1,118,435
2002 247,752 1,063,195
2001 312,643 1,026,242
2000 390,167 985,185
1999 368,272 948,659
1998 393,436 920,806
1997 422,773 882,544
1996 446,142 868,524
1995 468,967 838,980
1994 473,200 803,953
1993 477,302 778,044
1992 494,352 767,961
1991 467,594 762,011
1990 411,546 750,825
1989 403,266 743,854
1988 399,297 736,551
1987 378,758 718,580
1986 395,651 705,677
1985 416,219 697,867
1984 436,384 687,435
1983 514,844 679,720
1982 605,626 662,627
1981 631,189 645,496
1980 583,294 629,444
1979 623,068 613,388
1978 499,084 595,024
1977 578,947 574,938
1976 530,558 553,617
1975 603,300 533,906
1974 673,030 515,152
1973 699,115 488,429
1972 740,469 467,305
1971 789,185 449,014
1970 747,987 427,988
1969 694,227 408,322
1968 684,487 389,467
1967 692,169 374,763
1966 623,534 360,229
1965 641,090 343,456
1964 655,501 328,527
1963 685,824 314,644
1962 712,590 300,663
1961 730,173 286,839
1960 728,010 275,814

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

GeoRank.org/birth-rate/south-korea/tanzania | 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 -0.15% in South Korea and +2.94% in Tanzania.

For the past 10 years, the annual natural population change has been +0.06% in South Korea and +3.05% in Tanzania.

Birth rate in South Korea vs Tanzania by year

South Korea
Tanzania

Annual births per 1,000 people

1x
Year Annual births per 1,000 people
South Korea Tanzania
2023 4.5 35.2
2022 4.9 35.6
2021 5.1 36
2020 5.3 36.4
2019 5.9 36.9
2018 6.4 37.3
2017 7 37.6
2016 7.9 37.6
2015 8.6 37.6
2014 8.6 38.4
2013 8.6 38.4
2012 9.6 38.1
2011 9.4 38.1
2010 9.4 38.8
2009 9 39.2
2008 9.4 39.6
2007 10.1 40.2
2006 9.2 41
2005 9 41.5
2004 9.8 41.5
2003 10.2 41.3
2002 10.3 41.2
2001 11.7 41.4
2000 13.5 41.5
1999 13.2 41.8
1998 13.7 42.1
1997 14.5 42.1
1996 15 42.3
1995 15.7 41.9
1994 16 41.5
1993 16 41.7
1992 16.7 42.3
1991 16.4 42.7
1990 15.2 43
1989 15.1 43.5
1988 15.1 44
1987 15 44.3
1986 15.4 44.9
1985 16.1 45.7
1984 16.7 46.4
1983 19.3 47.1
1982 21.6 47.5
1981 22.4 47.9
1980 22.6 48.3
1979 23 48.8
1978 20.3 49.2
1977 22.7 49.5
1976 22.2 49.8
1975 24.8 50.2
1974 26.6 50.6
1973 28.3 50.3
1972 28.4 50.4
1971 31.2 50.6
1970 31.2 50.4
1969 30.3 50.3
1968 30.7 50.2
1967 31.5 50.3
1966 32.8 50.2
1965 33.8 49.9
1964 35.2 49.8
1963 37.2 49.7
1962 39 49.4
1961 40.9 49.1
1960 42.1 49

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

GeoRank.org/birth-rate/south-korea/tanzania | CC BY

The latest reported birth rate per 1,000 people in 2023 was 4.5 in South Korea and 35.2 in Tanzania, compared with 42.1 and 49, respectively, in 1960.

Birth rate data compared

South Korea Tanzania
Fertility rate 0.72 4.61
Fertility rate rank 196/196 12/196
Birth rate 4.5 35.2
Birth rate rank 196/196 10/196
Population change due to births and deaths -77,569 +1,960,623
Natural population change rank 187/196 8/196
Natural population change rate -0.15% +2.94%
Population growth +0.07% +2.92%
Population growth rank 160/197 18/197
Age at first childbirth 32.2 years 19.9 years
Average age at childbearing 33.4 years 28.9 years
Annual births per 1,000 women ages 15-19 0.56 111.5
Annual births per 1,000 women ages 20-29 14.9 199.8
Annual births per 1,000 women ages 30+ 10.6 71.3
Female of reproductive age (15-49), share of population 21.7% 24.2%
Any modern method of contraceptive prevalence among married women ages 15-49 67.6% 31.1%
Share of births attended by skilled health staff 100% 63.5%
Maternal mortality per live birth 0.004% 0.28%
Neonatal mortality rate (before reaching 28 days of age) 0.12% 2.06%
Infant mortality rate (before reaching 1 year of age) 0.23% 2.99%
Mortality rate before reaching 5 years of age 0.28% 3.89%
Life expectancy 84.6 years 67.6 years

Children 0-14 years as share of population

South Korea
Factual

UN forecast
Tanzania
Factual

UN forecast
1x
Year Young
South Korea Tanzania
2100 8.61% 23.4%
2099 8.6% 23.6%
2098 8.59% 23.8%
2097 8.59% 23.9%
2096 8.59% 24.1%
2095 8.6% 24.3%
2094 8.61% 24.5%
2093 8.62% 24.7%
2092 8.62% 24.8%
2091 8.62% 25%
2090 8.62% 25.2%
2089 8.6% 25.4%
2088 8.58% 25.6%
2087 8.55% 25.8%
2086 8.5% 26%
2085 8.45% 26.2%
2084 8.39% 26.4%
2083 8.33% 26.6%
2082 8.26% 26.8%
2081 8.18% 27.1%
2080 8.09% 27.3%
2079 8% 27.5%
2078 7.91% 27.7%
2077 7.82% 28%
2076 7.72% 28.2%
2075 7.63% 28.4%
2074 7.53% 28.7%
2073 7.44% 28.9%
2072 7.35% 29.1%
2071 7.28% 29.4%
2070 7.21% 29.6%
2069 7.16% 29.8%
2068 7.13% 30.1%
2067 7.11% 30.3%
2066 7.11% 30.6%
2065 7.14% 30.8%
2064 7.18% 31.1%
2063 7.23% 31.3%
2062 7.3% 31.6%
2061 7.37% 31.9%
2060 7.45% 32.1%
2059 7.52% 32.4%
2058 7.6% 32.7%
2057 7.66% 32.9%
2056 7.72% 33.2%
2055 7.76% 33.5%
2054 7.79% 33.8%
2053 7.81% 34.1%
2052 7.83% 34.3%
2051 7.83% 34.6%
2050 7.83% 34.9%
2049 7.82% 35.2%
2048 7.81% 35.5%
2047 7.8% 35.8%
2046 7.79% 36.1%
2045 7.78% 36.4%
2044 7.78% 36.7%
2043 7.77% 37%
2042 7.76% 37.3%
2041 7.74% 37.6%
2040 7.72% 37.9%
2039 7.7% 38.3%
2038 7.66% 38.6%
2037 7.65% 39%
2036 7.65% 39.3%
2035 7.66% 39.6%
2034 7.73% 40%
2033 7.85% 40.3%
2032 8.02% 40.7%
2031 8.28% 41%
2030 8.59% 41.3%
2029 8.9% 41.6%
2028 9.23% 41.8%
2027 9.62% 42.1%
2026 10% 42.2%
2025 10.4% 42.4%
2024 10.6% 42.5%
2023 11% 42.7%
2022 11.4% 42.9%
2021 11.8% 43.1%
2020 12.1% 43.4%
2019 12.4% 43.6%
2018 12.7% 43.8%
2017 13% 44%
2016 13.4% 44.2%
2015 13.8% 44.5%
2014 14.2% 44.8%
2013 14.7% 44.9%
2012 15.2% 45.1%
2011 15.8% 45.2%
2010 16.4% 45.3%
2009 16.9% 45.3%
2008 17.5% 45.1%
2007 18.1% 45%
2006 18.7% 44.9%
2005 19.2% 44.8%
2004 19.7% 44.7%
2003 20.1% 44.6%
2002 20.5% 44.6%
2001 20.8% 44.5%
2000 21% 44.6%
1999 21.2% 44.7%
1998 21.6% 44.7%
1997 22% 44.8%
1996 22.5% 44.7%
1995 23.1% 44.5%
1994 23.7% 44.9%
1993 24.2% 45.5%
1992 24.7% 46%
1991 25.2% 46.2%
1990 25.8% 46.3%
1989 26.5% 46.5%
1988 27.3% 46.7%
1987 28.2% 46.9%
1986 29.2% 47.2%
1985 30.2% 47.4%
1984 31.2% 47.5%
1983 32% 47.6%
1982 32.7% 47.5%
1981 33.3% 47.4%
1980 34% 47.2%
1979 34.8% 46.9%
1978 35.6% 46.7%
1977 36.5% 46.6%
1976 37.5% 46.5%
1975 38.5% 46.4%
1974 39.5% 46.3%
1973 40.3% 46.2%
1972 41% 46.1%
1971 41.5% 46.1%
1970 42.1% 46%
1969 42.7% 45.9%
1968 43.1% 45.8%
1967 43.3% 45.6%
1966 43.5% 45.4%
1965 43.3% 45.2%
1964 43.1% 45%
1963 42.7% 44.8%
1962 42.3% 44.8%
1961 41.8% 44.8%
1960 41.3% 44.9%

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/south-korea/tanzania | CC BY

Children aged 0-14 make up 10.6% of the population in South Korea and 42.5% in Tanzania in 2024, compared to 25.8% and 46.3% respectively in 1990.

Demographics of South Korea and Tanzania compared.

Fertility rates around the globe

1x

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

GeoRank.org/birth-rate/south-korea/tanzania | CC BY

Maternal mortality chart: South Korea vs Tanzania

South Korea
Tanzania
1x
Year Maternal mortality per 100K births
South Korea Tanzania
2023 4 276
2022 7 152
2021 5 162
2020 12 160
2019 5 292
2018 5 319
2017 6 345
2016 6 396
2015 6 433
2014 7 454
2013 7 479
2012 8 448
2011 8 475
2010 8 486
2009 9 502
2008 9 511
2007 10 453
2006 10 366
2005 11 350
2004 12 365
2003 13 397
2002 13 454
2001 14 493
2000 15 568
1999 17 635
1998 18 739
1997 19 777
1996 20 775
1995 22 797
1994 23 816
1993 24 851
1992 26 864
1991 28 873
1990 28 900
1989 29 927
1988 31 949
1987 34 964
1986 35 971
1985 38 980

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

GeoRank.org/birth-rate/south-korea/tanzania | CC BY

The maternal mortality rate, which is the probability of dying during childbirth or within 42 days of pregnancy termination, is 4 deaths per 100,000 live births in South Korea, compared to 276 deaths in Tanzania.

Under-five mortality rates

South Korea
Tanzania

Probability that a newborn baby will die before reaching age five

1x
Year Under 5 mortality rate
South Korea Tanzania
2023 0.28% 3.89%
2022 0.28% 4.05%
2021 0.29% 4.22%
2020 0.3% 4.42%
2019 0.31% 4.6%
2018 0.32% 4.8%
2017 0.33% 5.02%
2016 0.34% 5.25%
2015 0.35% 5.48%
2014 0.36% 5.67%
2013 0.37% 5.95%
2012 0.38% 6.21%
2011 0.4% 6.5%
2010 0.41% 6.86%
2009 0.43% 7.24%
2008 0.45% 7.7%
2007 0.48% 8.16%
2006 0.52% 8.69%
2005 0.56% 9.24%
2004 0.6% 9.86%
2003 0.64% 10.5%
2002 0.68% 11.3%
2001 0.71% 12.1%
2000 0.75% 12.8%
1999 0.8% 13.6%
1998 0.85% 14.2%
1997 0.91% 14.8%
1996 0.98% 15.2%
1995 1.05% 15.6%
1994 1.14% 15.9%
1993 1.23% 16.1%
1992 1.33% 16.3%
1991 1.44% 16.5%
1990 1.57% 16.7%
1989 1.71% 16.9%
1988 1.87% 17.2%
1987 2.05% 17.4%
1986 2.25% 17.6%
1985 2.46% 17.7%
1984 2.7% 17.8%
1983 2.93% 17.8%
1982 3.17% 17.8%
1981 3.4% 17.8%
1980 3.63% 17.9%
1979 3.84% 18.1%
1978 4.04% 18.4%
1977 4.23% 18.8%
1976 4.42% 19.2%
1975 4.61% 19.6%
1974 4.82% 20.1%
1973 5.07% 20.5%
1972 5.36% 20.9%
1971 5.71% 21.2%
1970 6.12% 21.6%
1969 6.59% 21.9%
1968 7.1% 22.2%
1967 7.62% 22.5%
1966 8.16% 22.8%
1965 8.68% 23.1%
1964 9.18% 23.4%
1963 9.67% 23.6%
1962 10.1% 23.8%
1961 10.6% 24%
1960 11.2% 24.2%

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

GeoRank.org/birth-rate/south-korea/tanzania | CC BY

The chance that a newborn baby will die before reaching age five is 0.28% in South Korea and 3.89% in Tanzania. 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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