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Fertility & birth rates in Bulgaria and Sudan

Updated on by Georank team

Bulgaria has an annual birth rate of 8.9 births per 1,000 people, compared to 33.6 for Sudan. The average number of children a woman is expected to have during her lifetime — the fertility rate, is 1.81 in Bulgaria and 4.32 in Sudan — 138.8% difference.

1960 vs 2023, the fertility rate has decreased by 21.6% in Bulgaria and by 35.1% in Sudan — in 1960, it was 2.31 and 6.66, respectively.

  • Bulgaria is ranked 165/196 by birth rate compared to 18/196 for Sudan.
  • The mean age at childbearing (for all the births, not just the first) is 28.3 in Bulgaria — it's 29.8 in Sudan.
  • Annual births per 1,000 women ages 15-19 (adolescent birth rate or teenage mother rate) is 39.1 in Bulgaria vs 66.1 in Sudan.
  • In Bulgaria, 20.7% of the population is composed of women of reproductive age (15-49), compared to 24.8% in Sudan.

Fertility rate in Bulgaria vs Sudan by year

Bulgaria
Sudan
1x
Year Fertility rate
Bulgaria Sudan
2023 1.81 4.32
2022 1.78 4.38
2021 1.8 4.46
2020 1.77 4.54
2019 1.79 4.62
2018 1.73 4.68
2017 1.71 4.76
2016 1.67 4.83
2015 1.64 4.9
2014 1.62 4.91
2013 1.54 4.97
2012 1.5 5.03
2011 1.51 5.09
2010 1.57 5.14
2009 1.66 5.17
2008 1.56 5.21
2007 1.49 5.27
2006 1.44 5.33
2005 1.37 5.4
2004 1.33 5.46
2003 1.26 5.49
2002 1.23 5.53
2001 1.21 5.56
2000 1.26 5.6
1999 1.23 5.62
1998 1.11 5.65
1997 1.09 5.72
1996 1.23 5.79
1995 1.23 5.86
1994 1.37 5.91
1993 1.46 5.97
1992 1.55 6.02
1991 1.66 6.05
1990 1.82 6.07
1989 1.9 6.11
1988 1.97 6.13
1987 1.96 6.18
1986 2.02 6.23
1985 1.97 6.28
1984 2.01 6.34
1983 2.01 6.41
1982 2.01 6.47
1981 2 6.53
1980 2.05 6.59
1979 2.16 6.65
1978 2.15 6.72
1977 2.21 6.78
1976 2.24 6.82
1975 2.23 6.87
1974 2.29 6.91
1973 2.15 6.94
1972 2.03 6.98
1971 2.1 7.02
1970 2.17 6.99
1969 2.27 6.97
1968 2.27 6.95
1967 2.02 6.91
1966 2.03 6.88
1965 2.09 6.84
1964 2.19 6.8
1963 2.21 6.76
1962 2.24 6.7
1961 2.29 6.66
1960 2.31 6.66

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

GeoRank.org/birth-rate/bulgaria/sudan | 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 4.32 in Sudan in 2023. The replacement level is considered to be 2.1 children per woman.

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

Natural population change by year

Bulgaria
Sudan
1x
Year Natural population change
Bulgaria Sudan
2023 -43,837 1,361,564
2022 -62,065 1,333,992
2021 -90,452 1,293,817
2020 -65,507 1,295,781
2019 -46,317 1,291,747
2018 -46,304 1,257,387
2017 -45,583 1,208,046
2016 -42,744 1,174,422
2015 -44,699 1,145,259
2014 -41,027 1,097,962
2013 -37,948 1,078,446
2012 -40,183 1,073,062
2011 -37,477 1,070,888
2010 -34,759 1,068,381
2009 -26,800 1,041,810
2008 -32,967 1,001,826
2007 -37,727 992,819
2006 -39,526 963,740
2005 -42,124 907,017
2004 -40,128 889,382
2003 -44,319 898,226
2002 -46,240 897,965
2001 -44,050 880,284
2000 -41,668 858,536
1999 -39,411 835,840
1998 -52,844 814,752
1997 -58,185 802,245
1996 -45,159 792,926
1995 -42,030 780,700
1994 -32,086 764,645
1993 -24,569 743,249
1992 -18,789 731,177
1991 -14,675 714,612
1990 -3,487 699,953
1989 5,326 683,743
1988 9,879 672,604
1987 8,971 658,416
1986 16,125 649,649
1985 11,649 583,382
1984 20,610 577,405
1983 21,455 570,198
1982 24,077 606,362
1981 29,341 585,087
1980 30,129 552,930
1979 40,599 524,942
1978 44,070 497,987
1977 47,543 483,089
1976 56,055 470,019
1975 54,941 454,813
1974 64,223 444,456
1973 57,760 439,201
1972 47,169 428,340
1971 52,925 417,641
1970 61,125 401,013
1969 63,256 385,712
1968 69,468 370,917
1967 49,861 356,599
1966 54,504 342,118
1965 58,249 327,799
1964 66,783 315,166
1963 66,241 302,132
1962 64,104 287,317
1961 75,460 272,562
1960 76,314 262,235

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

GeoRank.org/birth-rate/bulgaria/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 -0.68% in Bulgaria and +2.72% in Sudan.

For the past 10 years, the annual natural population change has been -0.79% in Bulgaria and +2.79% in Sudan.

Birth rate in Bulgaria vs Sudan by year

Bulgaria
Sudan

Annual births per 1,000 people

1x
Year Annual births per 1,000 people
Bulgaria Sudan
2023 8.9 33.6
2022 8.8 33.5
2021 9 33.9
2020 9 34.5
2019 9.3 34.9
2018 9.3 35.1
2017 9.4 35
2016 9.4 35.4
2015 9.4 35.7
2014 9.6 35.5
2013 9.3 36
2012 9.5 36.6
2011 9.6 37.3
2010 10.2 38
2009 10.9 38.1
2008 10.4 38.4
2007 10 38.9
2006 9.7 39.2
2005 9.3 39.6
2004 9.1 40
2003 8.7 40.2
2002 8.5 40.4
2001 8.5 40.7
2000 9 40.8
1999 8.8 41
1998 7.9 41.2
1997 7.7 41.6
1996 8.6 42.2
1995 8.6 42.6
1994 9.4 43
1993 10 43.4
1992 10.4 43.7
1991 11.1 43.8
1990 12.1 43.8
1989 12.6 44
1988 13.1 44.1
1987 13 44.2
1986 13.4 44.5
1985 13.3 44.7
1984 13.6 45.1
1983 13.8 45.6
1982 13.9 45.4
1981 14 45.6
1980 14.5 45.2
1979 15.3 45.3
1978 15.5 45
1977 16.1 45.3
1976 16.5 45.7
1975 16.6 45.9
1974 17.2 46.5
1973 16.2 47.6
1972 15.3 48.4
1971 15.9 48.9
1970 16.3 48.8
1969 17 48.8
1968 16.9 48.8
1967 15 48.8
1966 14.9 48.7
1965 15.3 48.6
1964 16.1 48.5
1963 16.4 48.3
1962 16.7 48
1961 17.4 47.6
1960 17.8 47.7

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

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

The latest reported birth rate per 1,000 people in 2023 was 8.9 in Bulgaria and 33.6 in Sudan, compared with 17.8 and 47.7, respectively, in 1960.

Birth rate data compared

Bulgaria Sudan
Fertility rate 1.81 4.32
Fertility rate rank 110/196 16/196
Birth rate 8.9 33.6
Birth rate rank 165/196 18/196
Population change due to births and deaths -43,837 +1,361,564
Natural population change rank 182/196 11/196
Natural population change rate -0.68% +2.72%
Population growth -0.08% +0.81%
Population growth rank 171/197 116/197
Age at first childbirth 26.9 years n/a
Average age at childbearing 28.3 years 29.8 years
Annual births per 1,000 women ages 15-19 36 61.8
Annual births per 1,000 women ages 20-29 86.2 189.4
Annual births per 1,000 women ages 30+ 10.7 73.5
Female of reproductive age (15-49), share of population 20.7% 24.8%
Any modern method of contraceptive prevalence among married women ages 15-49 39.6% 12%
Share of births attended by skilled health staff 94.5% 77.7%
Maternal mortality per live birth 0.006% 0.26%
Neonatal mortality rate (before reaching 28 days of age) 0.26% 2.48%
Infant mortality rate (before reaching 1 year of age) 0.5% 3.92%
Mortality rate before reaching 5 years of age 0.61% 5.01%
Life expectancy 76.1 years 66.9 years

Children 0-14 years as share of population

Bulgaria
Factual

UN forecast
Sudan
Factual

UN forecast
1x
Year Young
Bulgaria Sudan
2100 13% 21.3%
2099 13.1% 21.4%
2098 13.1% 21.6%
2097 13.1% 21.8%
2096 13.2% 21.9%
2095 13.2% 22.1%
2094 13.3% 22.3%
2093 13.4% 22.4%
2092 13.4% 22.6%
2091 13.4% 22.8%
2090 13.5% 22.9%
2089 13.5% 23.1%
2088 13.6% 23.3%
2087 13.6% 23.4%
2086 13.6% 23.6%
2085 13.6% 23.7%
2084 13.6% 23.9%
2083 13.6% 24.1%
2082 13.6% 24.3%
2081 13.6% 24.4%
2080 13.6% 24.6%
2079 13.6% 24.8%
2078 13.6% 25%
2077 13.6% 25.2%
2076 13.6% 25.4%
2075 13.5% 25.6%
2074 13.5% 25.9%
2073 13.5% 26.1%
2072 13.5% 26.3%
2071 13.5% 26.6%
2070 13.5% 26.8%
2069 13.6% 27.1%
2068 13.6% 27.3%
2067 13.6% 27.6%
2066 13.6% 27.8%
2065 13.6% 28.1%
2064 13.7% 28.3%
2063 13.7% 28.6%
2062 13.7% 28.8%
2061 13.8% 29.1%
2060 13.8% 29.3%
2059 13.8% 29.5%
2058 13.9% 29.8%
2057 13.9% 30%
2056 13.9% 30.2%
2055 13.9% 30.5%
2054 13.9% 30.7%
2053 13.9% 31%
2052 13.9% 31.2%
2051 13.8% 31.5%
2050 13.8% 31.8%
2049 13.8% 32.1%
2048 13.7% 32.4%
2047 13.7% 32.7%
2046 13.6% 33%
2045 13.6% 33.4%
2044 13.6% 33.7%
2043 13.6% 34.1%
2042 13.6% 34.5%
2041 13.6% 34.9%
2040 13.6% 35.3%
2039 13.6% 35.7%
2038 13.7% 36.1%
2037 13.7% 36.5%
2036 13.7% 36.9%
2035 13.7% 37.3%
2034 13.8% 37.7%
2033 13.8% 38.1%
2032 13.9% 38.4%
2031 14% 38.7%
2030 14.1% 39%
2029 14.2% 39.2%
2028 14.2% 39.4%
2027 14.3% 39.6%
2026 14.4% 40%
2025 14.4% 40.4%
2024 14.5% 40.5%
2023 14.5% 40.6%
2022 14.5% 40.9%
2021 14.5% 41.2%
2020 14.4% 41.4%
2019 14.4% 41.7%
2018 14.3% 42%
2017 14.2% 42.6%
2016 14% 43.1%
2015 13.9% 43.6%
2014 13.8% 44%
2013 13.7% 44.4%
2012 13.6% 44.5%
2011 13.5% 44.6%
2010 13.5% 44.6%
2009 13.4% 44.7%
2008 13.3% 44.9%
2007 13.4% 45.1%
2006 13.5% 45.3%
2005 13.7% 45.4%
2004 14% 45.5%
2003 14.4% 45.6%
2002 14.8% 45.6%
2001 15.2% 45.7%
2000 15.7% 45.8%
1999 16.1% 45.9%
1998 16.5% 46.1%
1997 17% 46.2%
1996 17.4% 46.2%
1995 17.9% 46.3%
1994 18.3% 46.3%
1993 18.8% 46.3%
1992 19.3% 46.3%
1991 19.8% 46.2%
1990 20.3% 46.1%
1989 20.8% 46.1%
1988 21.1% 46%
1987 21.3% 46%
1986 21.4% 46.1%
1985 21.6% 46.1%
1984 21.8% 46.2%
1983 22% 46.3%
1982 22.1% 46.4%
1981 22.1% 46.6%
1980 22.1% 46.8%
1979 22.1% 47.1%
1978 22.2% 47.4%
1977 22.2% 47.7%
1976 22.3% 47.8%
1975 22.3% 48%
1974 22.2% 48.1%
1973 22.3% 47.9%
1972 22.4% 47.7%
1971 22.6% 47.6%
1970 22.8% 47.5%
1969 23% 47.4%
1968 23.2% 47.3%
1967 23.4% 47.2%
1966 23.8% 47.1%
1965 24.2% 47%
1964 24.7% 46.9%
1963 25.1% 46.7%
1962 25.4% 46.6%
1961 25.8% 46.6%
1960 26.1% 46.5%

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/bulgaria/sudan | CC BY

Children aged 0-14 make up 14.5% of the population in Bulgaria and 40.5% in Sudan in 2024, compared to 20.3% and 46.1% respectively in 1990.

Demographics of Bulgaria and Sudan compared.

Fertility rates around the globe

1x

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

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

Maternal mortality chart: Bulgaria vs Sudan

Bulgaria
Sudan
1x
Year Maternal mortality per 100K births
Bulgaria Sudan
2023 6 256
2022 10 263
2021 9 305
2020 9 273
2019 6 262
2018 7 268
2017 7 277
2016 7 288
2015 7 298
2014 7 309
2013 7 327
2012 7 340
2011 8 357
2010 9 370
2009 9 382
2008 10 426
2007 11 445
2006 12 485
2005 13 506
2004 14 536
2003 14 593
2002 15 588
2001 17 616
2000 19 645
1999 20 662
1998 20 669
1997 23 681
1996 22 712
1995 23 730
1994 25 775
1993 23 839
1992 25 863
1991 25 873
1990 27 840
1989 25 881
1988 26 877
1987 25 914
1986 25 938
1985 26 980

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

GeoRank.org/birth-rate/bulgaria/sudan | 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 256 deaths in Sudan.

Under-five mortality rates

Bulgaria
Sudan

Probability that a newborn baby will die before reaching age five

1x
Year Under 5 mortality rate
Bulgaria Sudan
2023 0.61% 5.01%
2022 0.62% 5.18%
2021 0.63% 5.36%
2020 0.65% 5.53%
2019 0.67% 5.71%
2018 0.7% 5.89%
2017 0.73% 6.07%
2016 0.77% 6.26%
2015 0.82% 6.45%
2014 0.87% 6.64%
2013 0.93% 6.83%
2012 0.99% 7.02%
2011 1.04% 7.22%
2010 1.08% 7.42%
2009 1.12% 7.64%
2008 1.14% 7.88%
2007 1.18% 8.13%
2006 1.24% 8.4%
2005 1.33% 10%
2004 1.42% 10.3%
2003 1.51% 9.31%
2002 1.6% 9.65%
2001 1.68% 9.99%
2000 1.75% 10.3%
1999 1.82% 10.7%
1998 1.89% 11%
1997 1.93% 11.3%
1996 1.94% 11.6%
1995 1.92% 11.9%
1994 1.91% 12.2%
1993 1.92% 12.5%
1992 1.92% 12.7%
1991 1.89% 13%
1990 1.83% 13.2%
1989 1.79% 13.4%
1988 1.78% 13.6%
1987 1.8% 13.8%
1986 1.87% 14%
1985 1.97% 17.8%
1984 2.07% 18%
1983 2.15% 18.2%
1982 2.22% 14.5%
1981 2.3% 14.6%
1980 2.38% 14.8%
1979 2.49% 14.9%
1978 2.6% 15%
1977 2.72% 15.1%
1976 2.8% 15.2%
1975 2.86% 15.3%
1974 2.91% 15.4%
1973 2.95% 15.5%
1972 3.01% 15.6%
1971 3.11% 15.7%
1970 3.25% 15.8%
1969 3.4% 15.9%
1968 3.54% 16%
1967 3.64% 16.2%
1966 3.7% 16.3%
1965 3.75% 16.5%
1964 3.86% 16.7%
1963 4.08% 17%
1962 4.43% 17.2%
1961 4.89% 17.5%
1960 5.47% 17.8%

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

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

The chance that a newborn baby will die before reaching age five is 0.61% in Bulgaria and 5.01% in 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. United Nations Economic Commission for Europe (UNECE) (2023, retrieved 2026-03-10)

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