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Fertility & birth rates in South Korea and Thailand

Updated on by Georank team

South Korea has an annual birth rate of 4.5 births per 1,000 people, compared to 8.24 for Thailand. The average number of children a woman is expected to have during her lifetime — the fertility rate, is 0.72 in South Korea and 1.21 in Thailand — 68.1% difference.

1960 vs 2023, the fertility rate has decreased by 88% in South Korea and by 80.8% in Thailand — in 1960, it was 5.99 and 6.33, respectively.

  • South Korea is ranked 196/196 by birth rate compared to 173/196 for Thailand.
  • The mean age for first-time mothers is 32.2 years in South Korea, compared to 23.3 years in Thailand.
  • The mean age at childbearing (for all the births, not just the first) is 33.4 in South Korea — it's 28.6 in Thailand.
  • Annual births per 1,000 women ages 15-19 (adolescent birth rate or teenage mother rate) is 0.54 in South Korea vs 26.1 in Thailand.
  • In South Korea, 21.7% of the population is composed of women of reproductive age (15-49), compared to 24.1% in Thailand.

Fertility rate in South Korea vs Thailand by year

South Korea
Thailand
1x
Year Fertility rate
South Korea Thailand
2023 0.72 1.21
2022 0.78 1.22
2021 0.81 1.23
2020 0.84 1.26
2019 0.92 1.29
2018 0.98 1.32
2017 1.05 1.36
2016 1.17 1.4
2015 1.24 1.45
2014 1.21 1.48
2013 1.19 1.53
2012 1.3 1.56
2011 1.24 1.57
2010 1.23 1.56
2009 1.15 1.57
2008 1.19 1.59
2007 1.26 1.62
2006 1.13 1.63
2005 1.09 1.64
2004 1.16 1.67
2003 1.19 1.67
2002 1.18 1.69
2001 1.31 1.71
2000 1.48 1.73
1999 1.43 1.77
1998 1.46 1.82
1997 1.54 1.85
1996 1.57 1.87
1995 1.63 1.89
1994 1.66 1.93
1993 1.65 1.97
1992 1.76 2.01
1991 1.71 2.04
1990 1.57 2.07
1989 1.56 2.14
1988 1.55 2.17
1987 1.53 2.26
1986 1.58 2.36
1985 1.66 2.45
1984 1.74 2.58
1983 2.06 2.76
1982 2.39 2.94
1981 2.57 3.13
1980 2.82 3.29
1979 2.9 3.45
1978 2.64 3.62
1977 2.99 3.87
1976 3 4.12
1975 3.43 4.36
1974 3.77 4.6
1973 4.07 4.85
1972 4.12 5.08
1971 4.54 5.25
1970 4.53 5.45
1969 4.45 5.7
1968 4.51 5.93
1967 4.62 6.08
1966 4.78 6.18
1965 4.89 6.26
1964 5.07 6.31
1963 5.33 6.34
1962 5.56 6.33
1961 5.8 6.32
1960 5.99 6.33

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

GeoRank.org/birth-rate/south-korea/thailand | 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 1.21 in Thailand in 2023. The replacement level is considered to be 2.1 children per woman.

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

Natural population change by year

South Korea
Thailand
1x
Year Natural population change
South Korea Thailand
2023 -77,569 -46,105
2022 -124,014 -61,046
2021 -56,947 57,382
2020 -31,101 84,107
2019 10,353 116,867
2018 30,951 159,383
2017 71,907 194,695
2016 122,923 226,255
2015 163,248 266,362
2014 167,464 294,628
2013 166,415 325,059
2012 215,859 351,485
2011 214,728 365,670
2010 213,083 370,466
2009 197,231 382,636
2008 215,841 401,730
2007 248,286 425,362
2006 203,441 441,211
2005 187,920 456,378
2004 225,988 466,542
2003 244,251 488,003
2002 247,752 504,299
2001 312,643 524,230
2000 390,167 543,884
1999 368,272 578,073
1998 393,436 617,318
1997 422,773 644,834
1996 446,142 661,397
1995 468,967 682,703
1994 473,200 712,589
1993 477,302 737,696
1992 494,352 754,999
1991 467,594 760,508
1990 411,546 760,808
1989 403,266 774,563
1988 399,297 765,252
1987 378,758 774,498
1986 395,651 783,430
1985 416,219 776,935
1984 436,384 779,856
1983 514,844 794,239
1982 605,626 817,951
1981 631,189 839,297
1980 583,294 845,575
1979 623,068 843,434
1978 499,084 847,799
1977 578,947 871,232
1976 530,558 894,072
1975 603,300 911,980
1974 673,030 923,151
1973 699,115 933,540
1972 740,469 940,420
1971 789,185 936,215
1970 747,987 937,116
1969 694,227 948,314
1968 684,487 953,806
1967 692,169 944,980
1966 623,534 929,469
1965 641,090 909,000
1964 655,501 885,137
1963 685,824 860,728
1962 712,590 828,741
1961 730,173 801,140
1960 728,010 774,190

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

GeoRank.org/birth-rate/south-korea/thailand | 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 -0.06% in Thailand.

For the past 10 years, the annual natural population change has been +0.06% in South Korea and +0.18% in Thailand.

Birth rate in South Korea vs Thailand by year

South Korea
Thailand

Annual births per 1,000 people

1x
Year Annual births per 1,000 people
South Korea Thailand
2023 4.5 8.24
2022 4.9 8.38
2021 5.1 8.54
2020 5.3 8.79
2019 5.9 9.06
2018 6.4 9.4
2017 7 9.77
2016 7.9 10.1
2015 8.6 10.6
2014 8.6 11
2013 8.6 11.4
2012 9.6 11.8
2011 9.4 11.9
2010 9.4 12
2009 9 12.2
2008 9.4 12.5
2007 10.1 12.9
2006 9.2 13.2
2005 9 13.5
2004 9.8 13.8
2003 10.2 14.1
2002 10.3 14.3
2001 11.7 14.7
2000 13.5 15
1999 13.2 15.6
1998 13.7 16.3
1997 14.5 16.8
1996 15 17.3
1995 15.7 17.7
1994 16 18.2
1993 16 18.7
1992 16.7 19.2
1991 16.4 19.5
1990 15.2 19.6
1989 15.1 20.1
1988 15.1 20.2
1987 15 20.7
1986 15.4 21.3
1985 16.1 21.7
1984 16.7 22.3
1983 19.3 23.3
1982 21.6 24.5
1981 22.4 25.5
1980 22.6 26.3
1979 23 26.8
1978 20.3 27.5
1977 22.7 28.6
1976 22.2 29.8
1975 24.8 31.1
1974 26.6 32.3
1973 28.3 33.5
1972 28.4 34.7
1971 31.2 35.6
1970 31.2 36.7
1969 30.3 38.3
1968 30.7 39.7
1967 31.5 40.8
1966 32.8 41.6
1965 33.8 42.2
1964 35.2 42.8
1963 37.2 43.2
1962 39 43.4
1961 40.9 43.6
1960 42.1 43.8

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

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

The latest reported birth rate per 1,000 people in 2023 was 4.5 in South Korea and 8.24 in Thailand, compared with 42.1 and 43.8, respectively, in 1960.

Birth rate data compared

South Korea Thailand
Fertility rate 0.72 1.21
Fertility rate rank 196/196 179/196
Birth rate 4.5 8.24
Birth rate rank 196/196 173/196
Population change due to births and deaths -77,569 -46,105
Natural population change rank 187/196 183/196
Natural population change rate -0.15% -0.06%
Population growth +0.07% -0.05%
Population growth rank 160/197 168/197
Age at first childbirth 32.2 years 23.3 years
Average age at childbearing 33.4 years 28.6 years
Annual births per 1,000 women ages 15-19 0.56 23
Annual births per 1,000 women ages 20-29 14.9 57.4
Annual births per 1,000 women ages 30+ 10.6 9.94
Female of reproductive age (15-49), share of population 21.7% 24.1%
Any modern method of contraceptive prevalence among married women ages 15-49 67.6% 70.7%
Share of births attended by skilled health staff 100% 99.1%
Maternal mortality per live birth 0.004% 0.03%
Neonatal mortality rate (before reaching 28 days of age) 0.12% 0.52%
Infant mortality rate (before reaching 1 year of age) 0.23% 0.8%
Mortality rate before reaching 5 years of age 0.28% 0.92%
Life expectancy 84.6 years 77.1 years

Children 0-14 years as share of population

South Korea
Factual

UN forecast
Thailand
Factual

UN forecast
1x
Year Young
South Korea Thailand
2100 8.61% 11.4%
2099 8.6% 11.4%
2098 8.59% 11.4%
2097 8.59% 11.4%
2096 8.59% 11.4%
2095 8.6% 11.3%
2094 8.61% 11.3%
2093 8.62% 11.3%
2092 8.62% 11.3%
2091 8.62% 11.3%
2090 8.62% 11.3%
2089 8.6% 11.3%
2088 8.58% 11.3%
2087 8.55% 11.3%
2086 8.5% 11.3%
2085 8.45% 11.3%
2084 8.39% 11.3%
2083 8.33% 11.3%
2082 8.26% 11.3%
2081 8.18% 11.3%
2080 8.09% 11.2%
2079 8% 11.2%
2078 7.91% 11.2%
2077 7.82% 11.2%
2076 7.72% 11.1%
2075 7.63% 11.1%
2074 7.53% 11.1%
2073 7.44% 11%
2072 7.35% 11%
2071 7.28% 11%
2070 7.21% 11%
2069 7.16% 10.9%
2068 7.13% 10.9%
2067 7.11% 10.9%
2066 7.11% 10.9%
2065 7.14% 10.9%
2064 7.18% 10.9%
2063 7.23% 11%
2062 7.3% 11%
2061 7.37% 11%
2060 7.45% 11.1%
2059 7.52% 11.1%
2058 7.6% 11.1%
2057 7.66% 11.2%
2056 7.72% 11.2%
2055 7.76% 11.3%
2054 7.79% 11.3%
2053 7.81% 11.4%
2052 7.83% 11.4%
2051 7.83% 11.5%
2050 7.83% 11.5%
2049 7.82% 11.6%
2048 7.81% 11.6%
2047 7.8% 11.6%
2046 7.79% 11.7%
2045 7.78% 11.7%
2044 7.78% 11.7%
2043 7.77% 11.7%
2042 7.76% 11.8%
2041 7.74% 11.8%
2040 7.72% 11.8%
2039 7.7% 11.9%
2038 7.66% 11.9%
2037 7.65% 12%
2036 7.65% 12%
2035 7.66% 12.1%
2034 7.73% 12.2%
2033 7.85% 12.4%
2032 8.02% 12.6%
2031 8.28% 12.8%
2030 8.59% 13%
2029 8.9% 13.3%
2028 9.23% 13.6%
2027 9.62% 13.9%
2026 10% 14.2%
2025 10.4% 14.6%
2024 10.6% 14.7%
2023 11% 15.1%
2022 11.4% 15.4%
2021 11.8% 15.8%
2020 12.1% 16.2%
2019 12.4% 16.6%
2018 12.7% 16.9%
2017 13% 17.3%
2016 13.4% 17.7%
2015 13.8% 18.1%
2014 14.2% 18.5%
2013 14.7% 18.8%
2012 15.2% 19.2%
2011 15.8% 19.7%
2010 16.4% 20.1%
2009 16.9% 20.6%
2008 17.5% 20.9%
2007 18.1% 21.3%
2006 18.7% 21.7%
2005 19.2% 22.2%
2004 19.7% 22.6%
2003 20.1% 23%
2002 20.5% 23.4%
2001 20.8% 23.9%
2000 21% 24.4%
1999 21.2% 24.9%
1998 21.6% 25.4%
1997 22% 25.9%
1996 22.5% 26.4%
1995 23.1% 26.9%
1994 23.7% 27.4%
1993 24.2% 28%
1992 24.7% 28.5%
1991 25.2% 29.2%
1990 25.8% 30%
1989 26.5% 30.7%
1988 27.3% 31.5%
1987 28.2% 32.4%
1986 29.2% 33.2%
1985 30.2% 34.1%
1984 31.2% 35.1%
1983 32% 36%
1982 32.7% 37%
1981 33.3% 37.8%
1980 34% 38.7%
1979 34.8% 39.5%
1978 35.6% 40.3%
1977 36.5% 41.1%
1976 37.5% 41.8%
1975 38.5% 42.4%
1974 39.5% 43%
1973 40.3% 43.5%
1972 41% 44%
1971 41.5% 44.4%
1970 42.1% 44.8%
1969 42.7% 45%
1968 43.1% 45.2%
1967 43.3% 45.3%
1966 43.5% 45.4%
1965 43.3% 45.4%
1964 43.1% 45.3%
1963 42.7% 45.1%
1962 42.3% 44.8%
1961 41.8% 44.6%
1960 41.3% 44.3%

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/thailand | CC BY

Children aged 0-14 make up 10.6% of the population in South Korea and 14.7% in Thailand in 2024, compared to 25.8% and 30% respectively in 1990.

Demographics of South Korea and Thailand compared.

Fertility rates around the globe

1x

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

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

Maternal mortality chart: South Korea vs Thailand

South Korea
Thailand
1x
Year Maternal mortality per 100K births
South Korea Thailand
2023 4 34
2022 7 112
2021 5 38
2020 12 36
2019 5 34
2018 5 34
2017 6 34
2016 6 34
2015 6 34
2014 7 34
2013 7 35
2012 8 36
2011 8 37
2010 8 37
2009 9 37
2008 9 37
2007 10 38
2006 10 38
2005 11 40
2004 12 44
2003 13 42
2002 13 44
2001 14 47
2000 15 49
1999 17 48
1998 18 47
1997 19 48
1996 20 49
1995 22 52
1994 23 54
1993 24 57
1992 26 58
1991 28 59
1990 28 60
1989 29 64
1988 31 67
1987 34 72
1986 35 78
1985 38 88

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

GeoRank.org/birth-rate/south-korea/thailand | 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 34 deaths in Thailand.

Under-five mortality rates

South Korea
Thailand

Probability that a newborn baby will die before reaching age five

1x
Year Under 5 mortality rate
South Korea Thailand
2023 0.28% 0.92%
2022 0.28% 0.95%
2021 0.29% 0.98%
2020 0.3% 1.01%
2019 0.31% 1.04%
2018 0.32% 1.08%
2017 0.33% 1.11%
2016 0.34% 1.15%
2015 0.35% 1.19%
2014 0.36% 1.23%
2013 0.37% 1.27%
2012 0.38% 1.32%
2011 0.4% 1.37%
2010 0.41% 1.42%
2009 0.43% 1.47%
2008 0.45% 1.53%
2007 0.48% 1.59%
2006 0.52% 1.66%
2005 0.56% 1.73%
2004 0.6% 1.81%
2003 0.64% 1.89%
2002 0.68% 1.98%
2001 0.71% 2.08%
2000 0.75% 2.18%
1999 0.8% 2.29%
1998 0.85% 2.41%
1997 0.91% 2.53%
1996 0.98% 2.67%
1995 1.05% 2.81%
1994 1.14% 2.96%
1993 1.23% 3.12%
1992 1.33% 3.3%
1991 1.44% 3.49%
1990 1.57% 3.69%
1989 1.71% 3.91%
1988 1.87% 4.12%
1987 2.05% 4.34%
1986 2.25% 4.57%
1985 2.46% 4.8%
1984 2.7% 5.03%
1983 2.93% 5.28%
1982 3.17% 5.53%
1981 3.4% 5.79%
1980 3.63% 6.07%
1979 3.84% 6.36%
1978 4.04% 6.67%
1977 4.23% 7%
1976 4.42% 7.35%
1975 4.61% 7.73%
1974 4.82% 8.14%
1973 5.07% 8.56%
1972 5.36% 9.01%
1971 5.71% 9.47%
1970 6.12% 9.95%
1969 6.59% 10.4%
1968 7.1% 10.9%
1967 7.62% 11.4%
1966 8.16% 11.8%
1965 8.68% 12.3%
1964 9.18% 12.8%
1963 9.67% 13.2%
1962 10.1% 13.7%
1961 10.6% 14.2%
1960 11.2% 14.7%

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

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

The chance that a newborn baby will die before reaching age five is 0.28% in South Korea and 0.92% in Thailand. 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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