Skip to content

Fertility & birth rates in Bulgaria and Vietnam

Updated on by Georank team

Bulgaria has an annual birth rate of 8.9 births per 1,000 people, compared to 13.8 for Vietnam. The average number of children a woman is expected to have during her lifetime — the fertility rate, is 1.81 in Bulgaria and 1.91 in Vietnam — 5.69% difference.

1960 vs 2023, the fertility rate has decreased by 21.6% in Bulgaria and by 69.5% in Vietnam — in 1960, it was 2.31 and 6.27, respectively.

  • Bulgaria is ranked 165/196 by birth rate compared to 103/196 for Vietnam.
  • The mean age at childbearing (for all the births, not just the first) is 28.3 in Bulgaria — it's 27.2 in Vietnam.
  • Annual births per 1,000 women ages 15-19 (adolescent birth rate or teenage mother rate) is 39.1 in Bulgaria vs 34.3 in Vietnam.
  • In Bulgaria, 20.7% of the population is composed of women of reproductive age (15-49), compared to 25.7% in Vietnam.

Fertility rate in Bulgaria vs Vietnam by year

Bulgaria
Vietnam
1x
Year Fertility rate
Bulgaria Vietnam
2023 1.81 1.91
2022 1.78 1.93
2021 1.8 1.94
2020 1.77 1.96
2019 1.79 1.94
2018 1.73 1.88
2017 1.71 1.99
2016 1.67 2
2015 1.64 2.1
2014 1.62 2.09
2013 1.54 1.98
2012 1.5 1.97
2011 1.51 1.93
2010 1.57 1.91
2009 1.66 1.92
2008 1.56 1.93
2007 1.49 1.91
2006 1.44 1.87
2005 1.37 1.89
2004 1.33 1.97
2003 1.26 2
2002 1.23 2.01
2001 1.21 2.02
2000 1.26 2.03
1999 1.23 2
1998 1.11 2.1
1997 1.09 2.27
1996 1.23 2.47
1995 1.23 2.7
1994 1.37 2.94
1993 1.46 3.17
1992 1.55 3.35
1991 1.66 3.52
1990 1.82 3.6
1989 1.9 3.64
1988 1.97 3.62
1987 1.96 3.72
1986 2.02 3.96
1985 1.97 4.21
1984 2.01 4.41
1983 2.01 4.52
1982 2.01 4.59
1981 2 4.67
1980 2.05 4.8
1979 2.16 4.94
1978 2.15 5.1
1977 2.21 5.29
1976 2.24 5.46
1975 2.23 5.62
1974 2.29 5.78
1973 2.15 6.11
1972 2.03 6.1
1971 2.1 6.07
1970 2.17 6.02
1969 2.27 6.01
1968 2.27 6.03
1967 2.02 5.88
1966 2.03 5.97
1965 2.09 6.16
1964 2.19 6.29
1963 2.21 6.39
1962 2.24 6.26
1961 2.29 5.48
1960 2.31 6.27

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

GeoRank.org/birth-rate/bulgaria/vietnam | CC BY

According to the latest available data on birth rates, the fertility rate in Bulgaria was 1.81 children per woman in 2023, compared to 1.91 in Vietnam in 2023. The replacement level is considered to be 2.1 children per woman.

Check Bulgaria vs Vietnam population clock for a dynamic visualization of the changing population.

Natural population change by year

Bulgaria
Vietnam
1x
Year Natural population change
Bulgaria Vietnam
2023 -43,837 727,955
2022 -62,065 775,914
2021 -90,452 799,593
2020 -65,507 924,004
2019 -46,317 895,262
2018 -46,304 882,977
2017 -45,583 1,001,833
2016 -42,744 1,045,094
2015 -44,699 1,145,903
2014 -41,027 1,151,221
2013 -37,948 1,071,570
2012 -40,183 1,063,741
2011 -37,477 1,029,859
2010 -34,759 1,005,559
2009 -26,800 1,007,778
2008 -32,967 1,008,141
2007 -37,727 981,689
2006 -39,526 943,041
2005 -42,124 942,084
2004 -40,128 985,438
2003 -44,319 1,001,470
2002 -46,240 991,427
2001 -44,050 985,610
2000 -41,668 966,894
1999 -39,411 925,519
1998 -52,844 959,016
1997 -58,185 1,028,116
1996 -45,159 1,108,686
1995 -42,030 1,203,666
1994 -32,086 1,291,534
1993 -24,569 1,370,365
1992 -18,789 1,419,952
1991 -14,675 1,459,311
1990 -3,487 1,449,157
1989 5,326 1,423,622
1988 9,879 1,370,108
1987 8,971 1,359,481
1986 16,125 1,407,957
1985 11,649 1,453,954
1984 20,610 1,477,448
1983 21,455 1,453,913
1982 24,077 1,407,959
1981 29,341 1,358,500
1980 30,129 1,321,595
1979 40,599 1,314,563
1978 44,070 1,286,991
1977 47,543 1,259,315
1976 56,055 1,232,608
1975 54,941 1,175,181
1974 64,223 1,000,505
1973 57,760 1,061,707
1972 47,169 921,524
1971 52,925 963,259
1970 61,125 905,902
1969 63,256 878,359
1968 69,468 815,116
1967 49,861 862,071
1966 54,504 876,283
1965 58,249 913,761
1964 66,783 950,219
1963 66,241 961,067
1962 64,104 960,046
1961 75,460 798,978
1960 76,314 955,268

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

GeoRank.org/birth-rate/bulgaria/vietnam | 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 -0.68% in Bulgaria and +0.73% in Vietnam.

For the past 10 years, the annual natural population change has been -0.79% in Bulgaria and +0.97% in Vietnam.

Birth rate in Bulgaria vs Vietnam by year

Bulgaria
Vietnam

Annual births per 1,000 people

1x
Year Annual births per 1,000 people
Bulgaria Vietnam
2023 8.9 13.8
2022 8.8 14.3
2021 9 14.7
2020 9 15.2
2019 9.3 15.5
2018 9.3 15.4
2017 9.4 16.8
2016 9.4 17.3
2015 9.4 18.5
2014 9.6 18.7
2013 9.3 17.9
2012 9.5 17.9
2011 9.6 17.6
2010 10.2 17.4
2009 10.9 17.5
2008 10.4 17.7
2007 10 17.5
2006 9.7 17.2
2005 9.3 17.4
2004 9.1 18
2003 8.7 18.2
2002 8.5 18.1
2001 8.5 18.1
2000 9 18
1999 8.8 17.6
1998 7.9 18.3
1997 7.7 19.6
1996 8.6 21
1995 8.6 22.7
1994 9.4 24.5
1993 10 26.1
1992 10.4 27.3
1991 11.1 28.5
1990 12.1 28.9
1989 12.6 29
1988 13.1 28.7
1987 13 29.2
1986 13.4 30.7
1985 13.3 32.2
1984 13.6 33.3
1983 13.8 33.7
1982 13.9 33.6
1981 14 33.4
1980 14.5 33.5
1979 15.3 34.1
1978 15.5 34.3
1977 16.1 34.6
1976 16.5 34.9
1975 16.6 35.1
1974 17.2 35.5
1973 16.2 36.9
1972 15.3 36.4
1971 15.9 35.7
1970 16.3 35.2
1969 17 35.1
1968 16.9 35.2
1967 15 34.6
1966 14.9 35.4
1965 15.3 37.1
1964 16.1 38.6
1963 16.4 40
1962 16.7 40
1961 17.4 35.6
1960 17.8 41.6

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

GeoRank.org/birth-rate/bulgaria/vietnam | CC BY

The latest reported birth rate per 1,000 people in 2023 was 8.9 in Bulgaria and 13.8 in Vietnam, compared with 17.8 and 41.6, respectively, in 1960.

Birth rate data compared

Bulgaria Vietnam
Fertility rate 1.81 1.91
Fertility rate rank 110/196 103/196
Birth rate 8.9 13.8
Birth rate rank 165/196 103/196
Population change due to births and deaths -43,837 +727,955
Natural population change rank 182/196 27/196
Natural population change rate -0.68% +0.73%
Population growth -0.08% +0.63%
Population growth rank 171/197 123/197
Age at first childbirth 26.9 years n/a
Average age at childbearing 28.3 years 27.2 years
Annual births per 1,000 women ages 15-19 36 34.7
Annual births per 1,000 women ages 20-29 86.2 112.4
Annual births per 1,000 women ages 30+ 10.7 14.7
Female of reproductive age (15-49), share of population 20.7% 25.7%
Any modern method of contraceptive prevalence among married women ages 15-49 39.6% 59.8%
Share of births attended by skilled health staff 94.5% 96.1%
Maternal mortality per live birth 0.006% 0.05%
Neonatal mortality rate (before reaching 28 days of age) 0.26% 1.03%
Infant mortality rate (before reaching 1 year of age) 0.5% 1.4%
Mortality rate before reaching 5 years of age 0.61% 2%
Life expectancy 76.1 years 75 years

Children 0-14 years as share of population

Bulgaria
Factual

UN forecast
Vietnam
Factual

UN forecast
1x
Year Young
Bulgaria Vietnam
2100 13% 13.2%
2099 13.1% 13.2%
2098 13.1% 13.3%
2097 13.1% 13.3%
2096 13.2% 13.3%
2095 13.2% 13.4%
2094 13.3% 13.4%
2093 13.4% 13.5%
2092 13.4% 13.5%
2091 13.4% 13.6%
2090 13.5% 13.7%
2089 13.5% 13.7%
2088 13.6% 13.8%
2087 13.6% 13.9%
2086 13.6% 14%
2085 13.6% 14%
2084 13.6% 14.1%
2083 13.6% 14.2%
2082 13.6% 14.2%
2081 13.6% 14.3%
2080 13.6% 14.3%
2079 13.6% 14.4%
2078 13.6% 14.4%
2077 13.6% 14.4%
2076 13.6% 14.4%
2075 13.5% 14.5%
2074 13.5% 14.5%
2073 13.5% 14.5%
2072 13.5% 14.5%
2071 13.5% 14.5%
2070 13.5% 14.5%
2069 13.6% 14.5%
2068 13.6% 14.5%
2067 13.6% 14.6%
2066 13.6% 14.6%
2065 13.6% 14.7%
2064 13.7% 14.8%
2063 13.7% 14.9%
2062 13.7% 15%
2061 13.8% 15.1%
2060 13.8% 15.3%
2059 13.8% 15.4%
2058 13.9% 15.6%
2057 13.9% 15.8%
2056 13.9% 16%
2055 13.9% 16.2%
2054 13.9% 16.4%
2053 13.9% 16.6%
2052 13.9% 16.7%
2051 13.8% 16.9%
2050 13.8% 17%
2049 13.8% 17.1%
2048 13.7% 17.2%
2047 13.7% 17.3%
2046 13.6% 17.4%
2045 13.6% 17.4%
2044 13.6% 17.5%
2043 13.6% 17.5%
2042 13.6% 17.5%
2041 13.6% 17.6%
2040 13.6% 17.6%
2039 13.6% 17.7%
2038 13.7% 17.8%
2037 13.7% 18%
2036 13.7% 18.2%
2035 13.7% 18.4%
2034 13.8% 18.7%
2033 13.8% 18.9%
2032 13.9% 19.3%
2031 14% 19.7%
2030 14.1% 20.2%
2029 14.2% 20.8%
2028 14.2% 21.4%
2027 14.3% 22.2%
2026 14.4% 22.7%
2025 14.4% 23%
2024 14.5% 23.2%
2023 14.5% 23.6%
2022 14.5% 23.9%
2021 14.5% 24.2%
2020 14.4% 24.4%
2019 14.4% 24.5%
2018 14.3% 24.6%
2017 14.2% 24.4%
2016 14% 24.1%
2015 13.9% 24%
2014 13.8% 24%
2013 13.7% 23.9%
2012 13.6% 24%
2011 13.5% 24.2%
2010 13.5% 24.6%
2009 13.4% 25.1%
2008 13.3% 25.6%
2007 13.4% 26.2%
2006 13.5% 26.9%
2005 13.7% 27.7%
2004 14% 28.5%
2003 14.4% 29.2%
2002 14.8% 29.9%
2001 15.2% 30.6%
2000 15.7% 31.5%
1999 16.1% 32.5%
1998 16.5% 33.5%
1997 17% 34.5%
1996 17.4% 35.4%
1995 17.9% 36.1%
1994 18.3% 36.7%
1993 18.8% 37.2%
1992 19.3% 37.7%
1991 19.8% 38.1%
1990 20.3% 38.5%
1989 20.8% 38.8%
1988 21.1% 39.2%
1987 21.3% 39.6%
1986 21.4% 39.9%
1985 21.6% 40.1%
1984 21.8% 40.1%
1983 22% 40.2%
1982 22.1% 40.2%
1981 22.1% 40.2%
1980 22.1% 40.3%
1979 22.1% 40.4%
1978 22.2% 40.6%
1977 22.2% 41%
1976 22.3% 41.2%
1975 22.3% 41.4%
1974 22.2% 41.8%
1973 22.3% 42.1%
1972 22.4% 42.4%
1971 22.6% 42.7%
1970 22.8% 42.9%
1969 23% 43.2%
1968 23.2% 43.4%
1967 23.4% 43.5%
1966 23.8% 43.6%
1965 24.2% 43.5%
1964 24.7% 43.4%
1963 25.1% 43.1%
1962 25.4% 42.4%
1961 25.8% 41.8%
1960 26.1% 41.1%

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/bulgaria/vietnam | CC BY

Children aged 0-14 make up 14.5% of the population in Bulgaria and 23.2% in Vietnam in 2024, compared to 20.3% and 38.5% respectively in 1990.

Demographics of Bulgaria and Vietnam compared.

Fertility rates around the globe

1x

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

GeoRank.org/birth-rate/bulgaria/vietnam | CC BY

Maternal mortality chart: Bulgaria vs Vietnam

Bulgaria
Vietnam
1x
Year Maternal mortality per 100K births
Bulgaria Vietnam
2023 6 48
2022 10 49
2021 9 52
2020 9 51
2019 6 52
2018 7 53
2017 7 55
2016 7 56
2015 7 58
2014 7 59
2013 7 60
2012 7 60
2011 8 61
2010 9 62
2009 9 64
2008 10 65
2007 11 66
2006 12 67
2005 13 69
2004 14 72
2003 14 71
2002 15 74
2001 17 78
2000 19 83
1999 20 86
1998 20 93
1997 23 104
1996 22 111
1995 23 119
1994 25 130
1993 23 135
1992 25 139
1991 25 142
1990 27 147
1989 25 152
1988 26 155
1987 25 163
1986 25 174
1985 26 186

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

GeoRank.org/birth-rate/bulgaria/vietnam | CC BY

The maternal mortality rate, which is the probability of dying during childbirth or within 42 days of pregnancy termination, is 6 deaths per 100,000 live births in Bulgaria, compared to 48 deaths in Vietnam.

Under-five mortality rates

Bulgaria
Vietnam

Probability that a newborn baby will die before reaching age five

1x
Year Under 5 mortality rate
Bulgaria Vietnam
2023 0.61% 2%
2022 0.62% 2.04%
2021 0.63% 2.07%
2020 0.65% 2.1%
2019 0.67% 2.12%
2018 0.7% 2.14%
2017 0.73% 2.15%
2016 0.77% 2.18%
2015 0.82% 2.2%
2014 0.87% 2.22%
2013 0.93% 2.24%
2012 0.99% 2.26%
2011 1.04% 2.28%
2010 1.08% 2.31%
2009 1.12% 2.33%
2008 1.14% 2.36%
2007 1.18% 2.4%
2006 1.24% 2.45%
2005 1.33% 2.5%
2004 1.42% 2.57%
2003 1.51% 2.65%
2002 1.6% 2.74%
2001 1.68% 2.86%
2000 1.75% 2.98%
1999 1.82% 3.13%
1998 1.89% 3.29%
1997 1.93% 3.48%
1996 1.94% 3.68%
1995 1.92% 3.9%
1994 1.91% 4.14%
1993 1.92% 4.39%
1992 1.92% 4.64%
1991 1.89% 4.9%
1990 1.83% 5.15%
1989 1.79% 5.4%
1988 1.78% 5.64%
1987 1.8% 5.85%
1986 1.87% 6.04%
1985 1.97% 6.21%
1984 2.07% 6.36%
1983 2.15% 6.5%
1982 2.22% 6.64%
1981 2.3% 6.79%
1980 2.38% 6.94%
1979 2.49% 7.1%
1978 2.6% 7.27%
1977 2.72% 7.44%
1976 2.8% 7.6%
1975 2.86% 7.75%
1974 2.91% 10.7%
1973 2.95% 10.4%
1972 3.01% 11.9%
1971 3.11% 10.5%
1970 3.25% 10.7%
1969 3.4% 10.8%
1968 3.54% 11.6%
1967 3.64% 10%
1966 3.7% 9.97%
1965 3.75% 9.93%
1964 3.86% 8.73%
1963 4.08% -
1962 4.43% -
1961 4.89% -
1960 5.47% -

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

GeoRank.org/birth-rate/bulgaria/vietnam | CC BY

The chance that a newborn baby will die before reaching age five is 0.61% in Bulgaria and 2% in Vietnam. Above is a chart with historical data on under-five mortality rates.

Compare countries by 7 more topics

Help us show the world through your eyes

Share a photo of your city and help others discover what it looks like to live there. Your contribution makes our data come alive.

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. United Nations Economic Commission for Europe (UNECE) (2023, retrieved 2026-03-10)

Creative Commons Attribution (CC BY) — you’re free to copy, share, remix, adapt, and use even commercially as long as you give appropriate credit and clearly indicate if you made changes. Other sources may be subject to different license terms.