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Fertility & birth rates in Bulgaria and DR Congo

Updated on by Georank team

Bulgaria has an annual birth rate of 8.9 births per 1,000 people, compared to 41.3 for the DR Congo. The average number of children a woman is expected to have during her lifetime — the fertility rate, is 1.81 in Bulgaria and 6.05 in the DR Congo — 234.3% difference.

1960 vs 2023, the fertility rate has decreased by 21.6% in Bulgaria and by 0.88% in the DR Congo — in 1960, it was 2.31 and 6.11, respectively.

  • Bulgaria is ranked 165/196 by birth rate compared to 5/196 for the DR Congo.
  • The mean age for first-time mothers is 26.9 years in Bulgaria, compared to 19.9 years in the DR Congo.
  • The mean age at childbearing (for all the births, not just the first) is 28.3 in Bulgaria — it's 30.1 in the DR Congo.
  • Annual births per 1,000 women ages 15-19 (adolescent birth rate or teenage mother rate) is 39.1 in Bulgaria vs 106.9 in the DR Congo.
  • In Bulgaria, 20.7% of the population is composed of women of reproductive age (15-49), compared to 22.3% in the DR Congo.

Fertility rate in Bulgaria vs DR Congo by year

Bulgaria
DR Congo
1x
Year Fertility rate
Bulgaria DR Congo
2023 1.81 6.05
2022 1.78 6.11
2021 1.8 6.16
2020 1.77 6.21
2019 1.79 6.25
2018 1.73 6.3
2017 1.71 6.35
2016 1.67 6.39
2015 1.64 6.44
2014 1.62 6.48
2013 1.54 6.53
2012 1.5 6.56
2011 1.51 6.58
2010 1.57 6.59
2009 1.66 6.59
2008 1.56 6.58
2007 1.49 6.56
2006 1.44 6.55
2005 1.37 6.53
2004 1.33 6.53
2003 1.26 6.55
2002 1.23 6.61
2001 1.21 6.66
2000 1.26 6.7
1999 1.23 6.69
1998 1.11 6.7
1997 1.09 6.69
1996 1.23 6.67
1995 1.23 6.68
1994 1.37 6.64
1993 1.46 6.64
1992 1.55 6.64
1991 1.66 6.65
1990 1.82 6.65
1989 1.9 6.65
1988 1.97 6.66
1987 1.96 6.65
1986 2.02 6.63
1985 1.97 6.61
1984 2.01 6.59
1983 2.01 6.56
1982 2.01 6.54
1981 2 6.52
1980 2.05 6.5
1979 2.16 6.48
1978 2.15 6.46
1977 2.21 6.45
1976 2.24 6.44
1975 2.23 6.42
1974 2.29 6.4
1973 2.15 6.39
1972 2.03 6.37
1971 2.1 6.34
1970 2.17 6.33
1969 2.27 6.3
1968 2.27 6.29
1967 2.02 6.27
1966 2.03 6.24
1965 2.09 6.21
1964 2.19 6.19
1963 2.21 6.16
1962 2.24 6.14
1961 2.29 6.12
1960 2.31 6.11

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

GeoRank.org/birth-rate/bulgaria/dr-congo | 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 6.05 in the DR Congo in 2023. The replacement level is considered to be 2.1 children per woman.

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

Natural population change by year

Bulgaria
DR Congo
1x
Year Natural population change
Bulgaria DR Congo
2023 -43,837 3,467,787
2022 -62,065 3,347,664
2021 -90,452 3,227,992
2020 -65,507 3,156,152
2019 -46,317 3,075,538
2018 -46,304 2,993,184
2017 -45,583 2,883,245
2016 -42,744 2,753,687
2015 -44,699 2,665,016
2014 -41,027 2,580,251
2013 -37,948 2,489,378
2012 -40,183 2,405,462
2011 -37,477 2,310,679
2010 -34,759 2,212,255
2009 -26,800 2,126,912
2008 -32,967 2,044,210
2007 -37,727 1,963,738
2006 -39,526 1,889,398
2005 -42,124 1,800,300
2004 -40,128 1,731,022
2003 -44,319 1,679,188
2002 -46,240 1,631,597
2001 -44,050 1,594,999
2000 -41,668 1,549,518
1999 -39,411 1,450,318
1998 -52,844 1,375,130
1997 -58,185 1,392,037
1996 -45,159 1,380,490
1995 -42,030 1,395,440
1994 -32,086 1,259,539
1993 -24,569 1,209,242
1992 -18,789 1,152,781
1991 -14,675 1,114,033
1990 -3,487 1,063,508
1989 5,326 1,027,238
1988 9,879 995,278
1987 8,971 959,875
1986 16,125 925,334
1985 11,649 885,670
1984 20,610 844,956
1983 21,455 807,122
1982 24,077 774,823
1981 29,341 748,371
1980 30,129 724,111
1979 40,599 691,773
1978 44,070 646,411
1977 47,543 638,242
1976 56,055 624,147
1975 54,941 608,655
1974 64,223 593,539
1973 57,760 578,280
1972 47,169 564,495
1971 52,925 549,343
1970 61,125 533,300
1969 63,256 514,800
1968 69,468 497,682
1967 49,861 479,552
1966 54,504 463,397
1965 58,249 429,002
1964 66,783 406,334
1963 66,241 398,972
1962 64,104 383,406
1961 75,460 368,207
1960 76,314 363,517

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

GeoRank.org/birth-rate/bulgaria/dr-congo | 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 +3.28% in the DR Congo.

For the past 10 years, the annual natural population change has been -0.79% in Bulgaria and +3.29% in the DR Congo.

Birth rate in Bulgaria vs DR Congo by year

Bulgaria
DR Congo

Annual births per 1,000 people

1x
Year Annual births per 1,000 people
Bulgaria DR Congo
2023 8.9 41.3
2022 8.8 41.6
2021 9 41.9
2020 9 42.2
2019 9.3 42.5
2018 9.3 42.9
2017 9.4 43
2016 9.4 42.9
2015 9.4 43.2
2014 9.6 43.5
2013 9.3 43.7
2012 9.5 44
2011 9.6 44
2010 10.2 43.9
2009 10.9 44
2008 10.4 44
2007 10 44
2006 9.7 44
2005 9.3 43.7
2004 9.1 43.8
2003 8.7 44.2
2002 8.5 44.6
2001 8.5 45
2000 9 45.3
1999 8.8 45.2
1998 7.9 44.9
1997 7.7 46
1996 8.6 47
1995 8.6 47.2
1994 9.4 45.3
1993 10 45.9
1992 10.4 45.7
1991 11.1 46
1990 12.1 45.9
1989 12.6 46.1
1988 13.1 46.4
1987 13 46.5
1986 13.4 46.6
1985 13.3 46.5
1984 13.6 46.2
1983 13.8 46.1
1982 13.9 46
1981 14 46.1
1980 14.5 46.1
1979 15.3 45.8
1978 15.5 45.4
1977 16.1 45.9
1976 16.5 46.2
1975 16.6 46.4
1974 17.2 46.6
1973 16.2 46.9
1972 15.3 47.1
1971 15.9 47.4
1970 16.3 47.6
1969 17 47.7
1968 16.9 47.8
1967 15 47.9
1966 14.9 47.9
1965 15.3 47.8
1964 16.1 47.7
1963 16.4 47.5
1962 16.7 47.4
1961 17.4 47.2
1960 17.8 47.1

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

GeoRank.org/birth-rate/bulgaria/dr-congo | CC BY

The latest reported birth rate per 1,000 people in 2023 was 8.9 in Bulgaria and 41.3 in the DR Congo, compared with 17.8 and 47.1, respectively, in 1960.

Birth rate data compared

Bulgaria DR Congo
Fertility rate 1.81 6.05
Fertility rate rank 110/196 4/196
Birth rate 8.9 41.3
Birth rate rank 165/196 5/196
Population change due to births and deaths -43,837 +3,467,787
Natural population change rank 182/196 4/196
Natural population change rate -0.68% +3.28%
Population growth -0.08% +3.3%
Population growth rank 171/197 11/197
Age at first childbirth 26.9 years 19.9 years
Average age at childbearing 28.3 years 30.1 years
Annual births per 1,000 women ages 15-19 36 103.3
Annual births per 1,000 women ages 20-29 86.2 244.2
Annual births per 1,000 women ages 30+ 10.7 106.7
Female of reproductive age (15-49), share of population 20.7% 22.3%
Any modern method of contraceptive prevalence among married women ages 15-49 39.6% 17.6%
Share of births attended by skilled health staff 94.5% 85.2%
Maternal mortality per live birth 0.006% 0.43%
Neonatal mortality rate (before reaching 28 days of age) 0.26% 2.53%
Infant mortality rate (before reaching 1 year of age) 0.5% 4.45%
Mortality rate before reaching 5 years of age 0.61% 7.32%
Life expectancy 76.1 years 62.4 years

Children 0-14 years as share of population

Bulgaria
Factual

UN forecast
DR Congo
Factual

UN forecast
1x
Year Young
Bulgaria DR Congo
2100 13% 23.4%
2099 13.1% 23.6%
2098 13.1% 23.8%
2097 13.1% 24%
2096 13.2% 24.2%
2095 13.2% 24.4%
2094 13.3% 24.6%
2093 13.4% 24.8%
2092 13.4% 25%
2091 13.4% 25.2%
2090 13.5% 25.4%
2089 13.5% 25.6%
2088 13.6% 25.8%
2087 13.6% 26.1%
2086 13.6% 26.3%
2085 13.6% 26.5%
2084 13.6% 26.8%
2083 13.6% 27%
2082 13.6% 27.2%
2081 13.6% 27.5%
2080 13.6% 27.8%
2079 13.6% 28%
2078 13.6% 28.3%
2077 13.6% 28.6%
2076 13.6% 28.9%
2075 13.5% 29.2%
2074 13.5% 29.5%
2073 13.5% 29.8%
2072 13.5% 30.1%
2071 13.5% 30.4%
2070 13.5% 30.7%
2069 13.6% 31.1%
2068 13.6% 31.4%
2067 13.6% 31.7%
2066 13.6% 32.1%
2065 13.6% 32.4%
2064 13.7% 32.8%
2063 13.7% 33.1%
2062 13.7% 33.5%
2061 13.8% 33.8%
2060 13.8% 34.1%
2059 13.8% 34.5%
2058 13.9% 34.8%
2057 13.9% 35.1%
2056 13.9% 35.5%
2055 13.9% 35.8%
2054 13.9% 36.1%
2053 13.9% 36.5%
2052 13.9% 36.8%
2051 13.8% 37.1%
2050 13.8% 37.5%
2049 13.8% 37.8%
2048 13.7% 38.2%
2047 13.7% 38.6%
2046 13.6% 39%
2045 13.6% 39.4%
2044 13.6% 39.8%
2043 13.6% 40.2%
2042 13.6% 40.6%
2041 13.6% 41.1%
2040 13.6% 41.5%
2039 13.6% 42%
2038 13.7% 42.4%
2037 13.7% 42.8%
2036 13.7% 43.2%
2035 13.7% 43.6%
2034 13.8% 44%
2033 13.8% 44.3%
2032 13.9% 44.6%
2031 14% 44.9%
2030 14.1% 45.2%
2029 14.2% 45.4%
2028 14.2% 45.6%
2027 14.3% 45.8%
2026 14.4% 45.9%
2025 14.4% 46%
2024 14.5% 46%
2023 14.5% 46.1%
2022 14.5% 46.1%
2021 14.5% 46.1%
2020 14.4% 46.1%
2019 14.4% 46%
2018 14.3% 45.9%
2017 14.2% 45.8%
2016 14% 45.9%
2015 13.9% 46%
2014 13.8% 46%
2013 13.7% 46%
2012 13.6% 46%
2011 13.5% 46%
2010 13.5% 46.1%
2009 13.4% 46.1%
2008 13.3% 46%
2007 13.4% 46%
2006 13.5% 45.9%
2005 13.7% 45.9%
2004 14% 45.9%
2003 14.4% 45.8%
2002 14.8% 45.7%
2001 15.2% 45.7%
2000 15.7% 45.7%
1999 16.1% 45.6%
1998 16.5% 45.6%
1997 17% 45.4%
1996 17.4% 44.7%
1995 17.9% 44%
1994 18.3% 44.1%
1993 18.8% 44.5%
1992 19.3% 44.5%
1991 19.8% 44.4%
1990 20.3% 44.4%
1989 20.8% 44.3%
1988 21.1% 44.3%
1987 21.3% 44.2%
1986 21.4% 44.1%
1985 21.6% 44.1%
1984 21.8% 44.1%
1983 22% 44.2%
1982 22.1% 44.3%
1981 22.1% 44.3%
1980 22.1% 44.2%
1979 22.1% 44.3%
1978 22.2% 44.5%
1977 22.2% 44.6%
1976 22.3% 44.5%
1975 22.3% 44.3%
1974 22.2% 44.2%
1973 22.3% 44%
1972 22.4% 43.8%
1971 22.6% 43.6%
1970 22.8% 43.4%
1969 23% 43.3%
1968 23.2% 43.2%
1967 23.4% 43%
1966 23.8% 42.9%
1965 24.2% 42.8%
1964 24.7% 42.7%
1963 25.1% 42.7%
1962 25.4% 42.7%
1961 25.8% 42.8%
1960 26.1% 42.9%

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/bulgaria/dr-congo | CC BY

Children aged 0-14 make up 14.5% of the population in Bulgaria and 46% in the DR Congo in 2024, compared to 20.3% and 44.4% respectively in 1990.

Demographics of Bulgaria and the DR Congo compared.

Fertility rates around the globe

1x

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

GeoRank.org/birth-rate/bulgaria/dr-congo | CC BY

Maternal mortality chart: Bulgaria vs DR Congo

Bulgaria
DR Congo
1x
Year Maternal mortality per 100K births
Bulgaria DR Congo
2023 6 427
2022 10 456
2021 9 507
2020 9 489
2019 6 493
2018 7 508
2017 7 519
2016 7 526
2015 7 545
2014 7 558
2013 7 567
2012 7 578
2011 8 589
2010 9 601
2009 9 608
2008 10 620
2007 11 631
2006 12 619
2005 13 613
2004 14 607
2003 14 605
2002 15 601
2001 17 588
2000 19 585
1999 20 601
1998 20 605
1997 23 617
1996 22 661
1995 23 644
1994 25 656
1993 23 683
1992 25 709
1991 25 735
1990 27 755
1989 25 791
1988 26 824
1987 25 863
1986 25 902
1985 26 934

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

GeoRank.org/birth-rate/bulgaria/dr-congo | 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 427 deaths in the DR Congo.

Under-five mortality rates

Bulgaria
DR Congo

Probability that a newborn baby will die before reaching age five

1x
Year Under 5 mortality rate
Bulgaria DR Congo
2023 0.61% 7.32%
2022 0.62% 7.57%
2021 0.63% 7.81%
2020 0.65% 8.07%
2019 0.67% 8.35%
2018 0.7% 8.63%
2017 0.73% 8.93%
2016 0.77% 9.23%
2015 0.82% 9.56%
2014 0.87% 9.9%
2013 0.93% 10.3%
2012 0.99% 10.6%
2011 1.04% 11%
2010 1.08% 11.4%
2009 1.12% 11.8%
2008 1.14% 12.2%
2007 1.18% 12.7%
2006 1.24% 13.1%
2005 1.33% 13.6%
2004 1.42% 14.1%
2003 1.51% 14.6%
2002 1.6% 15%
2001 1.68% 15.5%
2000 1.75% 15.9%
1999 1.82% 16.3%
1998 1.89% 16.7%
1997 1.93% 17%
1996 1.94% 17.3%
1995 1.92% 17.5%
1994 1.91% 17.7%
1993 1.92% 17.9%
1992 1.92% 18.1%
1991 1.89% 18.3%
1990 1.83% 18.5%
1989 1.79% 18.8%
1988 1.78% 19%
1987 1.8% 19.2%
1986 1.87% 19.5%
1985 1.97% 19.7%
1984 2.07% 20%
1983 2.15% 20.3%
1982 2.22% 20.6%
1981 2.3% 20.9%
1980 2.38% 21.2%
1979 2.49% 21.5%
1978 2.6% 21.9%
1977 2.72% 22.3%
1976 2.8% 22.6%
1975 2.86% 23%
1974 2.91% 23.4%
1973 2.95% 23.7%
1972 3.01% 24%
1971 3.11% 24.3%
1970 3.25% 24.7%
1969 3.4% 25.1%
1968 3.54% -
1967 3.64% -
1966 3.7% -
1965 3.75% -
1964 3.86% -
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/dr-congo | CC BY

The chance that a newborn baby will die before reaching age five is 0.61% in Bulgaria and 7.32% in the DR Congo. 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. United Nations Economic Commission for Europe (UNECE) (2023, retrieved 2026-03-10)
  4. Central Intelligence Agency (CIA) (2025, retrieved 2026-02-20)

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