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Fertility & birth rates in Ireland and Tanzania

Updated on by Georank team

Ireland has an annual birth rate of 10.3 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 1.5 in Ireland and 4.61 in Tanzania — 207.1% difference.

1960 vs 2023, the fertility rate has decreased by 60.3% in Ireland and by 29.5% in Tanzania — in 1960, it was 3.78 and 6.54, respectively.

  • Ireland is ranked 142/196 by birth rate compared to 10/196 for Tanzania.
  • The mean age for first-time mothers is 31.6 years in Ireland, compared to 19.9 years in Tanzania.
  • The mean age at childbearing (for all the births, not just the first) is 32.7 in Ireland — it's 28.9 in Tanzania.
  • Annual births per 1,000 women ages 15-19 (adolescent birth rate or teenage mother rate) is 4.07 in Ireland vs 113.2 in Tanzania.
  • In Ireland, 23.7% of the population is composed of women of reproductive age (15-49), compared to 24.2% in Tanzania.

Fertility rate in Ireland vs Tanzania by year

Ireland
Tanzania
1x
Year Fertility rate
Ireland Tanzania
2023 1.5 4.61
2022 1.54 4.67
2021 1.78 4.73
2020 1.63 4.8
2019 1.71 4.87
2018 1.75 4.93
2017 1.77 4.99
2016 1.81 5.01
2015 1.85 5.03
2014 1.89 5.12
2013 1.93 5.16
2012 1.98 5.14
2011 2.03 5.14
2010 2.05 5.23
2009 2.06 5.26
2008 2.06 5.32
2007 2.01 5.4
2006 1.91 5.51
2005 1.86 5.58
2004 1.93 5.6
2003 1.96 5.58
2002 1.97 5.57
2001 1.94 5.62
2000 1.89 5.67
1999 1.9 5.75
1998 1.94 5.81
1997 1.93 5.84
1996 1.88 5.83
1995 1.84 5.82
1994 1.85 5.89
1993 1.9 6
1992 1.99 6.08
1991 2.08 6.14
1990 2.11 6.2
1989 2.08 6.3
1988 2.17 6.38
1987 2.32 6.41
1986 2.44 6.49
1985 2.48 6.6
1984 2.58 6.72
1983 2.74 6.81
1982 2.94 6.87
1981 3.05 6.93
1980 3.21 6.99
1979 3.21 7.04
1978 3.21 7.06
1977 3.24 7.07
1976 3.29 7.09
1975 3.37 7.1
1974 3.59 7.12
1973 3.71 7.06
1972 3.84 7.05
1971 3.93 7.04
1970 3.85 7
1969 3.83 6.95
1968 3.77 6.9
1967 3.84 6.86
1966 3.94 6.8
1965 4.04 6.73
1964 4.07 6.68
1963 4.01 6.65
1962 3.92 6.61
1961 3.78 6.56
1960 3.78 6.54

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

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

According to the latest available data on birth rates, the fertility rate in Ireland was 1.5 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 Ireland vs Tanzania population clock for a dynamic visualization of the changing population.

Natural population change by year

Ireland
Tanzania
1x
Year Natural population change
Ireland Tanzania
2023 19,652 1,960,623
2022 19,287 1,927,960
2021 26,064 1,880,137
2020 23,687 1,861,377
2019 28,365 1,816,669
2018 29,878 1,777,852
2017 31,379 1,726,909
2016 33,339 1,659,502
2015 35,265 1,592,882
2014 37,728 1,565,630
2013 39,302 1,509,008
2012 42,775 1,439,325
2011 45,801 1,384,886
2010 47,426 1,363,477
2009 47,168 1,332,015
2008 46,691 1,303,728
2007 43,109 1,278,285
2006 36,752 1,257,927
2005 33,279 1,224,165
2004 33,376 1,175,379
2003 32,372 1,118,435
2002 31,062 1,063,195
2001 27,837 1,026,242
2000 23,592 985,185
1999 21,402 948,659
1998 22,277 920,806
1997 21,311 882,544
1996 18,915 868,524
1995 16,601 838,980
1994 17,234 803,953
1993 17,166 778,044
1992 20,283 767,961
1991 21,206 762,011
1990 21,787 750,825
1989 20,012 743,854
1988 22,912 736,551
1987 26,904 718,580
1986 27,963 705,677
1985 29,013 697,867
1984 31,791 687,435
1983 34,053 679,720
1982 38,344 662,627
1981 39,364 645,496
1980 40,612 629,444
1979 38,798 613,388
1978 36,288 595,024
1977 35,448 574,938
1976 33,676 553,617
1975 34,128 533,906
1974 34,199 515,152
1973 34,562 488,429
1972 34,316 467,305
1971 35,606 449,014
1970 30,756 427,988
1969 29,326 408,322
1968 27,697 389,467
1967 29,895 374,763
1966 26,866 360,229
1965 30,500 343,456
1964 31,532 328,527
1963 29,667 314,644
1962 28,077 300,663
1961 25,137 286,839
1960 28,286 275,814

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

GeoRank.org/birth-rate/ireland/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 +0.37% in Ireland and +2.94% in Tanzania.

For the past 10 years, the annual natural population change has been +0.58% in Ireland and +3.05% in Tanzania.

Birth rate in Ireland vs Tanzania by year

Ireland
Tanzania

Annual births per 1,000 people

1x
Year Annual births per 1,000 people
Ireland Tanzania
2023 10.3 35.2
2022 10.4 35.6
2021 11.8 36
2020 11.1 36.4
2019 11.9 36.9
2018 12.5 37.3
2017 12.8 37.6
2016 13.4 37.6
2015 13.9 37.6
2014 14.4 38.4
2013 14.9 38.4
2012 15.6 38.1
2011 16.2 38.1
2010 16.5 38.8
2009 16.7 39.2
2008 16.7 39.6
2007 16.2 40.2
2006 15.3 41
2005 14.8 41.5
2004 15.2 41.5
2003 15.4 41.3
2002 15.4 41.2
2001 15 41.4
2000 14.4 41.5
1999 14.4 41.8
1998 14.5 42.1
1997 14.4 42.1
1996 13.9 42.3
1995 13.5 41.9
1994 13.4 41.5
1993 13.8 41.7
1992 14.4 42.3
1991 14.9 42.7
1990 15.1 43
1989 14.8 43.5
1988 15.5 44
1987 16.5 44.3
1986 17.4 44.9
1985 17.6 45.7
1984 18.1 46.4
1983 19.1 47.1
1982 20.3 47.5
1981 20.9 47.9
1980 21.7 48.3
1979 21.5 48.8
1978 21.1 49.2
1977 21 49.5
1976 20.9 49.8
1975 21.1 50.2
1974 22 50.6
1973 22.3 50.3
1972 22.6 50.4
1971 22.6 50.6
1970 21.8 50.4
1969 21.5 50.3
1968 20.9 50.2
1967 21.1 50.3
1966 21.5 50.2
1965 22.1 49.9
1964 22.4 49.8
1963 22.2 49.7
1962 21.8 49.4
1961 21.2 49.1
1960 21.5 49

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

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

The latest reported birth rate per 1,000 people in 2023 was 10.3 in Ireland and 35.2 in Tanzania, compared with 21.5 and 49, respectively, in 1960.

Birth rate data compared

Ireland Tanzania
Fertility rate 1.5 4.61
Fertility rate rank 145/196 12/196
Birth rate 10.3 35.2
Birth rate rank 142/196 10/196
Population change due to births and deaths +19,652 +1,960,623
Natural population change rank 109/196 8/196
Natural population change rate +0.37% +2.94%
Population growth +1.59% +2.92%
Population growth rank 68/197 18/197
Age at first childbirth 31.6 years 19.9 years
Average age at childbearing 32.7 years 28.9 years
Annual births per 1,000 women ages 15-19 4.15 111.5
Annual births per 1,000 women ages 20-29 42.8 199.8
Annual births per 1,000 women ages 30+ 21.9 71.3
Female of reproductive age (15-49), share of population 23.7% 24.2%
Any modern method of contraceptive prevalence among married women ages 15-49 70.9% 31.1%
Share of births attended by skilled health staff 99.7% 63.5%
Maternal mortality per live birth 0.004% 0.28%
Neonatal mortality rate (before reaching 28 days of age) 0.25% 2.06%
Infant mortality rate (before reaching 1 year of age) 0.34% 2.99%
Mortality rate before reaching 5 years of age 0.38% 3.89%
Life expectancy 82.9 years 67.6 years

Children 0-14 years as share of population

Ireland
Factual

UN forecast
Tanzania
Factual

UN forecast
1x
Year Young
Ireland Tanzania
2100 12.7% 23.4%
2099 12.7% 23.6%
2098 12.8% 23.8%
2097 12.8% 23.9%
2096 12.9% 24.1%
2095 13% 24.3%
2094 13.1% 24.5%
2093 13.2% 24.7%
2092 13.3% 24.8%
2091 13.4% 25%
2090 13.4% 25.2%
2089 13.5% 25.4%
2088 13.6% 25.6%
2087 13.7% 25.8%
2086 13.7% 26%
2085 13.8% 26.2%
2084 13.8% 26.4%
2083 13.8% 26.6%
2082 13.8% 26.8%
2081 13.8% 27.1%
2080 13.7% 27.3%
2079 13.7% 27.5%
2078 13.6% 27.7%
2077 13.6% 28%
2076 13.5% 28.2%
2075 13.5% 28.4%
2074 13.4% 28.7%
2073 13.4% 28.9%
2072 13.4% 29.1%
2071 13.3% 29.4%
2070 13.3% 29.6%
2069 13.4% 29.8%
2068 13.4% 30.1%
2067 13.5% 30.3%
2066 13.5% 30.6%
2065 13.6% 30.8%
2064 13.8% 31.1%
2063 13.9% 31.3%
2062 14% 31.6%
2061 14.2% 31.9%
2060 14.4% 32.1%
2059 14.6% 32.4%
2058 14.7% 32.7%
2057 14.9% 32.9%
2056 15.1% 33.2%
2055 15.2% 33.5%
2054 15.3% 33.8%
2053 15.5% 34.1%
2052 15.6% 34.3%
2051 15.6% 34.6%
2050 15.7% 34.9%
2049 15.7% 35.2%
2048 15.7% 35.5%
2047 15.7% 35.8%
2046 15.6% 36.1%
2045 15.6% 36.4%
2044 15.5% 36.7%
2043 15.4% 37%
2042 15.3% 37.3%
2041 15.3% 37.6%
2040 15.2% 37.9%
2039 15.2% 38.3%
2038 15.1% 38.6%
2037 15.1% 39%
2036 15.3% 39.3%
2035 15.3% 39.6%
2034 15.5% 40%
2033 15.7% 40.3%
2032 15.9% 40.7%
2031 16.1% 41%
2030 16.4% 41.3%
2029 16.7% 41.6%
2028 17% 41.8%
2027 17.4% 42.1%
2026 17.9% 42.2%
2025 18.3% 42.4%
2024 18.6% 42.5%
2023 19% 42.7%
2022 19.5% 42.9%
2021 19.8% 43.1%
2020 20.1% 43.4%
2019 20.4% 43.6%
2018 20.7% 43.8%
2017 20.9% 44%
2016 21.2% 44.2%
2015 21.3% 44.5%
2014 21.4% 44.8%
2013 21.5% 44.9%
2012 21.5% 45.1%
2011 21.4% 45.2%
2010 21.1% 45.3%
2009 20.7% 45.3%
2008 20.5% 45.1%
2007 20.3% 45%
2006 20.4% 44.9%
2005 20.6% 44.8%
2004 20.8% 44.7%
2003 21% 44.6%
2002 21.1% 44.6%
2001 21.4% 44.5%
2000 21.8% 44.6%
1999 22.1% 44.7%
1998 22.5% 44.7%
1997 23% 44.8%
1996 23.6% 44.7%
1995 24.2% 44.5%
1994 24.9% 44.9%
1993 25.5% 45.5%
1992 26% 46%
1991 26.6% 46.2%
1990 27.1% 46.3%
1989 27.6% 46.5%
1988 28.1% 46.7%
1987 28.5% 46.9%
1986 28.9% 47.2%
1985 29.3% 47.4%
1984 29.6% 47.5%
1983 29.9% 47.6%
1982 30.1% 47.5%
1981 30.3% 47.4%
1980 30.4% 47.2%
1979 30.5% 46.9%
1978 30.7% 46.7%
1977 30.9% 46.6%
1976 31% 46.5%
1975 31.1% 46.4%
1974 31.2% 46.3%
1973 31.2% 46.2%
1972 31.2% 46.1%
1971 31.2% 46.1%
1970 31.1% 46%
1969 31.1% 45.9%
1968 31.1% 45.8%
1967 31.1% 45.6%
1966 31.1% 45.4%
1965 31.1% 45.2%
1964 30.9% 45%
1963 30.9% 44.8%
1962 30.9% 44.8%
1961 31% 44.8%
1960 30.9% 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/ireland/tanzania | CC BY

Children aged 0-14 make up 18.6% of the population in Ireland and 42.5% in Tanzania in 2024, compared to 27.1% and 46.3% respectively in 1990.

Demographics of Ireland and Tanzania compared.

Fertility rates around the globe

1x

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

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

Maternal mortality chart: Ireland vs Tanzania

Ireland
Tanzania
1x
Year Maternal mortality per 100K births
Ireland Tanzania
2023 4 276
2022 7 152
2021 6 162
2020 6 160
2019 4 292
2018 5 319
2017 4 345
2016 4 396
2015 5 433
2014 5 454
2013 5 479
2012 6 448
2011 6 475
2010 6 486
2009 6 502
2008 6 511
2007 6 453
2006 6 366
2005 6 350
2004 6 365
2003 6 397
2002 7 454
2001 7 493
2000 8 568
1999 7 635
1998 8 739
1997 8 777
1996 8 775
1995 9 797
1994 9 816
1993 9 851
1992 10 864
1991 10 873
1990 11 900
1989 10 927
1988 11 949
1987 10 964
1986 11 971
1985 11 980

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

GeoRank.org/birth-rate/ireland/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 Ireland, compared to 276 deaths in Tanzania.

Under-five mortality rates

Ireland
Tanzania

Probability that a newborn baby will die before reaching age five

1x
Year Under 5 mortality rate
Ireland Tanzania
2023 0.38% 3.89%
2022 0.37% 4.05%
2021 0.36% 4.22%
2020 0.35% 4.42%
2019 0.34% 4.6%
2018 0.34% 4.8%
2017 0.35% 5.02%
2016 0.36% 5.25%
2015 0.37% 5.48%
2014 0.38% 5.67%
2013 0.39% 5.95%
2012 0.4% 6.21%
2011 0.41% 6.5%
2010 0.42% 6.86%
2009 0.43% 7.24%
2008 0.44% 7.7%
2007 0.46% 8.16%
2006 0.49% 8.69%
2005 0.52% 9.24%
2004 0.56% 9.86%
2003 0.6% 10.5%
2002 0.65% 11.3%
2001 0.69% 12.1%
2000 0.72% 12.8%
1999 0.73% 13.6%
1998 0.73% 14.2%
1997 0.73% 14.8%
1996 0.73% 15.2%
1995 0.73% 15.6%
1994 0.74% 15.9%
1993 0.77% 16.1%
1992 0.81% 16.3%
1991 0.87% 16.5%
1990 0.92% 16.7%
1989 0.96% 16.9%
1988 0.99% 17.2%
1987 1.02% 17.4%
1986 1.04% 17.6%
1985 1.07% 17.7%
1984 1.11% 17.8%
1983 1.17% 17.8%
1982 1.23% 17.8%
1981 1.32% 17.8%
1980 1.43% 17.9%
1979 1.56% 18.1%
1978 1.69% 18.4%
1977 1.81% 18.8%
1976 1.91% 19.2%
1975 2% 19.6%
1974 2.06% 20.1%
1973 2.11% 20.5%
1972 2.14% 20.9%
1971 2.17% 21.2%
1970 2.22% 21.6%
1969 2.3% 21.9%
1968 2.41% 22.2%
1967 2.55% 22.5%
1966 2.71% 22.8%
1965 2.87% 23.1%
1964 3.01% 23.4%
1963 3.13% 23.6%
1962 3.25% 23.8%
1961 3.38% 24%
1960 3.53% 24.2%

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

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

The chance that a newborn baby will die before reaching age five is 0.38% in Ireland 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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