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Fertility & birth rates in Belgium and Tanzania

Updated on by Georank team

Belgium has an annual birth rate of 9.4 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 1.47 in Belgium and 4.61 in Tanzania — 213.3% difference.

1960 vs 2023, the fertility rate has decreased by 42.1% in Belgium and by 29.5% in Tanzania — in 1960, it was 2.54 and 6.54, respectively.

  • Belgium is ranked 155/196 by birth rate compared to 10/196 for Tanzania.
  • The mean age for first-time mothers is 29.5 years in Belgium, compared to 19.9 years in Tanzania.
  • The mean age at childbearing (for all the births, not just the first) is 31.3 in Belgium — it's 28.9 in Tanzania.
  • Annual births per 1,000 women ages 15-19 (adolescent birth rate or teenage mother rate) is 3.67 in Belgium vs 113.2 in Tanzania.
  • In Belgium, 21.5% of the population is composed of women of reproductive age (15-49), compared to 24.2% in Tanzania.

Fertility rate in Belgium vs Tanzania by year

Belgium
Tanzania
1x
Year Fertility rate
Belgium Tanzania
2023 1.47 4.61
2022 1.53 4.67
2021 1.6 4.73
2020 1.55 4.8
2019 1.6 4.87
2018 1.62 4.93
2017 1.65 4.99
2016 1.68 5.01
2015 1.7 5.03
2014 1.74 5.12
2013 1.76 5.16
2012 1.8 5.14
2011 1.81 5.14
2010 1.86 5.23
2009 1.84 5.26
2008 1.85 5.32
2007 1.82 5.4
2006 1.8 5.51
2005 1.76 5.58
2004 1.72 5.6
2003 1.67 5.58
2002 1.65 5.57
2001 1.67 5.62
2000 1.67 5.67
1999 1.62 5.75
1998 1.6 5.81
1997 1.6 5.84
1996 1.59 5.83
1995 1.56 5.82
1994 1.56 5.89
1993 1.61 6
1992 1.65 6.08
1991 1.66 6.14
1990 1.62 6.2
1989 1.58 6.3
1988 1.57 6.38
1987 1.54 6.41
1986 1.54 6.49
1985 1.51 6.6
1984 1.54 6.72
1983 1.57 6.81
1982 1.61 6.87
1981 1.66 6.93
1980 1.68 6.99
1979 1.69 7.04
1978 1.69 7.06
1977 1.71 7.07
1976 1.73 7.09
1975 1.74 7.1
1974 1.83 7.12
1973 1.95 7.06
1972 2.09 7.05
1971 2.21 7.04
1970 2.25 7
1969 2.27 6.95
1968 2.31 6.9
1967 2.41 6.86
1966 2.52 6.8
1965 2.61 6.73
1964 2.71 6.68
1963 2.68 6.65
1962 2.59 6.61
1961 2.63 6.56
1960 2.54 6.54

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

GeoRank.org/birth-rate/belgium/tanzania | CC BY

According to the latest available data on birth rates, the fertility rate in Belgium was 1.47 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 Belgium vs Tanzania population clock for a dynamic visualization of the changing population.

Natural population change by year

Belgium
Tanzania
1x
Year Natural population change
Belgium Tanzania
2023 0 1,960,623
2022 -2,336 1,927,960
2021 5,793 1,880,137
2020 -12,692 1,861,377
2019 8,042 1,816,669
2018 7,999 1,777,852
2017 10,238 1,726,909
2016 14,731 1,659,502
2015 11,274 1,592,882
2014 21,297 1,565,630
2013 16,739 1,509,008
2012 18,882 1,439,325
2011 25,388 1,384,886
2010 23,970 1,363,477
2009 23,752 1,332,015
2008 22,491 1,303,728
2007 23,376 1,278,285
2006 21,096 1,257,927
2005 15,718 1,224,165
2004 16,673 1,175,379
2003 7,263 1,118,435
2002 7,233 1,063,195
2001 11,315 1,026,242
2000 12,302 985,185
1999 9,203 948,659
1998 9,183 920,806
1997 12,218 882,544
1996 12,188 868,524
1995 11,150 838,980
1994 12,139 803,953
1993 14,118 778,044
1992 20,090 767,961
1991 22,010 762,011
1990 19,935 750,825
1989 13,912 743,854
1988 14,853 736,551
1987 11,844 718,580
1986 5,917 705,677
1985 2,958 697,867
1984 4,927 687,435
1983 2,956 679,720
1982 7,885 662,627
1981 11,831 645,496
1980 10,845 629,444
1979 11,818 613,388
1978 7,872 595,024
1977 8,847 574,938
1976 1,964 553,617
1975 0 533,906
1974 7,818 515,152
1973 11,690 488,429
1972 18,451 467,305
1971 21,281 449,014
1970 23,173 427,988
1969 21,221 408,322
1968 20,199 389,467
1967 31,618 374,763
1966 36,206 360,229
1965 39,748 343,456
1964 51,580 328,527
1963 41,804 314,644
1962 42,414 300,663
1961 52,349 286,839
1960 40,275 275,814

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

GeoRank.org/birth-rate/belgium/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% in Belgium and +2.94% in Tanzania.

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

Birth rate in Belgium vs Tanzania by year

Belgium
Tanzania

Annual births per 1,000 people

1x
Year Annual births per 1,000 people
Belgium Tanzania
2023 9.4 35.2
2022 9.8 35.6
2021 10.2 36
2020 9.9 36.4
2019 10.2 36.9
2018 10.4 37.3
2017 10.5 37.6
2016 10.8 37.6
2015 10.8 37.6
2014 11.2 38.4
2013 11.3 38.4
2012 11.5 38.1
2011 11.7 38.1
2010 11.9 38.8
2009 11.8 39.2
2008 11.9 39.6
2007 11.7 40.2
2006 11.6 41
2005 11.4 41.5
2004 11.3 41.5
2003 11 41.3
2002 10.9 41.2
2001 11.2 41.4
2000 11.4 41.5
1999 11.2 41.8
1998 11.2 42.1
1997 11.4 42.1
1996 11.5 42.3
1995 11.4 41.9
1994 11.5 41.5
1993 12 41.7
1992 12.4 42.3
1991 12.6 42.7
1990 12.4 43
1989 12.2 43.5
1988 12.1 44
1987 11.9 44.3
1986 11.9 44.9
1985 11.6 45.7
1984 11.7 46.4
1983 11.9 47.1
1982 12.2 47.5
1981 12.6 47.9
1980 12.6 48.3
1979 12.6 48.8
1978 12.5 49.2
1977 12.4 49.5
1976 12.3 49.8
1975 12.2 50.2
1974 12.7 50.6
1973 13.3 50.3
1972 14 50.4
1971 14.6 50.6
1970 14.7 50.4
1969 14.7 50.3
1968 14.8 50.2
1967 15.3 50.3
1966 15.9 50.2
1965 16.4 49.9
1964 17.2 49.8
1963 17.1 49.7
1962 16.8 49.4
1961 17.3 49.1
1960 16.8 49

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

GeoRank.org/birth-rate/belgium/tanzania | CC BY

The latest reported birth rate per 1,000 people in 2023 was 9.4 in Belgium and 35.2 in Tanzania, compared with 16.8 and 49, respectively, in 1960.

Birth rate data compared

Belgium Tanzania
Fertility rate 1.47 4.61
Fertility rate rank 151/196 12/196
Birth rate 9.4 35.2
Birth rate rank 155/196 10/196
Population change due to births and deaths +0 +1,960,623
Natural population change rank 157/196 8/196
Natural population change rate +0% +2.94%
Population growth +0.67% +2.92%
Population growth rank 119/197 18/197
Age at first childbirth 29.5 years 19.9 years
Average age at childbearing 31.3 years 28.9 years
Annual births per 1,000 women ages 15-19 3.31 111.5
Annual births per 1,000 women ages 20-29 55.1 199.8
Annual births per 1,000 women ages 30+ 15.4 71.3
Female of reproductive age (15-49), share of population 21.5% 24.2%
Any modern method of contraceptive prevalence among married women ages 15-49 65.4% 31.1%
Share of births attended by skilled health staff 99.3% 63.5%
Maternal mortality per live birth 0.004% 0.28%
Neonatal mortality rate (before reaching 28 days of age) 0.21% 2.06%
Infant mortality rate (before reaching 1 year of age) 0.3% 2.99%
Mortality rate before reaching 5 years of age 0.36% 3.89%
Life expectancy 82.6 years 67.6 years

Children 0-14 years as share of population

Belgium
Factual

UN forecast
Tanzania
Factual

UN forecast
1x
Year Young
Belgium Tanzania
2100 12.8% 23.4%
2099 12.8% 23.6%
2098 12.9% 23.8%
2097 12.9% 23.9%
2096 12.9% 24.1%
2095 13% 24.3%
2094 13% 24.5%
2093 13.1% 24.7%
2092 13.1% 24.8%
2091 13.2% 25%
2090 13.2% 25.2%
2089 13.2% 25.4%
2088 13.3% 25.6%
2087 13.3% 25.8%
2086 13.3% 26%
2085 13.3% 26.2%
2084 13.3% 26.4%
2083 13.3% 26.6%
2082 13.3% 26.8%
2081 13.3% 27.1%
2080 13.2% 27.3%
2079 13.2% 27.5%
2078 13.2% 27.7%
2077 13.1% 28%
2076 13.1% 28.2%
2075 13% 28.4%
2074 13% 28.7%
2073 12.9% 28.9%
2072 12.9% 29.1%
2071 12.9% 29.4%
2070 12.9% 29.6%
2069 12.9% 29.8%
2068 12.9% 30.1%
2067 13% 30.3%
2066 13% 30.6%
2065 13.1% 30.8%
2064 13.1% 31.1%
2063 13.2% 31.3%
2062 13.3% 31.6%
2061 13.4% 31.9%
2060 13.5% 32.1%
2059 13.6% 32.4%
2058 13.7% 32.7%
2057 13.7% 32.9%
2056 13.8% 33.2%
2055 13.9% 33.5%
2054 13.9% 33.8%
2053 13.9% 34.1%
2052 14% 34.3%
2051 14% 34.6%
2050 13.9% 34.9%
2049 13.9% 35.2%
2048 13.8% 35.5%
2047 13.8% 35.8%
2046 13.7% 36.1%
2045 13.7% 36.4%
2044 13.6% 36.7%
2043 13.5% 37%
2042 13.4% 37.3%
2041 13.4% 37.6%
2040 13.3% 37.9%
2039 13.3% 38.3%
2038 13.3% 38.6%
2037 13.3% 39%
2036 13.5% 39.3%
2035 13.6% 39.6%
2034 13.7% 40%
2033 13.9% 40.3%
2032 14.1% 40.7%
2031 14.3% 41%
2030 14.5% 41.3%
2029 14.7% 41.6%
2028 15% 41.8%
2027 15.3% 42.1%
2026 15.6% 42.2%
2025 15.9% 42.4%
2024 16% 42.5%
2023 16.3% 42.7%
2022 16.5% 42.9%
2021 16.7% 43.1%
2020 16.8% 43.4%
2019 16.9% 43.6%
2018 16.9% 43.8%
2017 17% 44%
2016 17% 44.2%
2015 17% 44.5%
2014 17% 44.8%
2013 17% 44.9%
2012 17% 45.1%
2011 17% 45.2%
2010 16.9% 45.3%
2009 16.9% 45.3%
2008 16.9% 45.1%
2007 16.9% 45%
2006 17% 44.9%
2005 17.1% 44.8%
2004 17.2% 44.7%
2003 17.3% 44.6%
2002 17.5% 44.6%
2001 17.5% 44.5%
2000 17.6% 44.6%
1999 17.7% 44.7%
1998 17.7% 44.7%
1997 17.8% 44.8%
1996 17.9% 44.7%
1995 18% 44.5%
1994 18.1% 44.9%
1993 18.1% 45.5%
1992 18.2% 46%
1991 18.2% 46.2%
1990 18.1% 46.3%
1989 18.1% 46.5%
1988 18.2% 46.7%
1987 18.3% 46.9%
1986 18.6% 47.2%
1985 18.8% 47.4%
1984 19.1% 47.5%
1983 19.4% 47.6%
1982 19.6% 47.5%
1981 19.9% 47.4%
1980 20.3% 47.2%
1979 20.6% 46.9%
1978 21% 46.7%
1977 21.4% 46.6%
1976 21.8% 46.5%
1975 22.2% 46.4%
1974 22.6% 46.3%
1973 23% 46.2%
1972 23.3% 46.1%
1971 23.5% 46.1%
1970 23.6% 46%
1969 23.8% 45.9%
1968 23.9% 45.8%
1967 23.9% 45.6%
1966 24% 45.4%
1965 24% 45.2%
1964 23.9% 45%
1963 23.9% 44.8%
1962 23.8% 44.8%
1961 23.8% 44.8%
1960 23.7% 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/belgium/tanzania | CC BY

Children aged 0-14 make up 16% of the population in Belgium and 42.5% in Tanzania in 2024, compared to 18.1% and 46.3% respectively in 1990.

Demographics of Belgium and Tanzania compared.

Fertility rates around the globe

1x

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

GeoRank.org/birth-rate/belgium/tanzania | CC BY

Maternal mortality chart: Belgium vs Tanzania

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

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

GeoRank.org/birth-rate/belgium/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 Belgium, compared to 276 deaths in Tanzania.

Under-five mortality rates

Belgium
Tanzania

Probability that a newborn baby will die before reaching age five

1x
Year Under 5 mortality rate
Belgium Tanzania
2023 0.36% 3.89%
2022 0.37% 4.05%
2021 0.38% 4.22%
2020 0.39% 4.42%
2019 0.39% 4.6%
2018 0.4% 4.8%
2017 0.4% 5.02%
2016 0.41% 5.25%
2015 0.41% 5.48%
2014 0.42% 5.67%
2013 0.42% 5.95%
2012 0.43% 6.21%
2011 0.44% 6.5%
2010 0.45% 6.86%
2009 0.46% 7.24%
2008 0.47% 7.7%
2007 0.48% 8.16%
2006 0.49% 8.69%
2005 0.5% 9.24%
2004 0.52% 9.86%
2003 0.53% 10.5%
2002 0.55% 11.3%
2001 0.57% 12.1%
2000 0.59% 12.8%
1999 0.61% 13.6%
1998 0.64% 14.2%
1997 0.67% 14.8%
1996 0.72% 15.2%
1995 0.77% 15.6%
1994 0.82% 15.9%
1993 0.87% 16.1%
1992 0.92% 16.3%
1991 0.96% 16.5%
1990 1% 16.7%
1989 1.03% 16.9%
1988 1.07% 17.2%
1987 1.1% 17.4%
1986 1.14% 17.6%
1985 1.18% 17.7%
1984 1.22% 17.8%
1983 1.27% 17.8%
1982 1.33% 17.8%
1981 1.39% 17.8%
1980 1.45% 17.9%
1979 1.52% 18.1%
1978 1.59% 18.4%
1977 1.67% 18.8%
1976 1.76% 19.2%
1975 1.86% 19.6%
1974 1.97% 20.1%
1973 2.08% 20.5%
1972 2.19% 20.9%
1971 2.3% 21.2%
1970 2.39% 21.6%
1969 2.48% 21.9%
1968 2.55% 22.2%
1967 2.62% 22.5%
1966 2.7% 22.8%
1965 2.79% 23.1%
1964 2.89% 23.4%
1963 3% 23.6%
1962 3.12% 23.8%
1961 3.25% 24%
1960 3.39% 24.2%

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

GeoRank.org/birth-rate/belgium/tanzania | CC BY

The chance that a newborn baby will die before reaching age five is 0.36% in Belgium 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. 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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