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Fertility & birth rates in Iceland and Tanzania

Updated on by Georank team

Iceland has an annual birth rate of 11 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 1.59 in Iceland and 4.61 in Tanzania — 189.7% difference.

1960 vs 2023, the fertility rate has decreased by 62.9% in Iceland and by 29.5% in Tanzania — in 1960, it was 4.29 and 6.54, respectively.

  • Iceland is ranked 132/196 by birth rate compared to 10/196 for Tanzania.
  • The mean age for first-time mothers is 28.8 years in Iceland, compared to 19.9 years in Tanzania.
  • The mean age at childbearing (for all the births, not just the first) is 31 in Iceland — it's 28.9 in Tanzania.
  • Annual births per 1,000 women ages 15-19 (adolescent birth rate or teenage mother rate) is 3.37 in Iceland vs 113.2 in Tanzania.
  • In Iceland, 23.7% of the population is composed of women of reproductive age (15-49), compared to 24.2% in Tanzania.

Fertility rate in Iceland vs Tanzania by year

Iceland
Tanzania
1x
Year Fertility rate
Iceland Tanzania
2023 1.59 4.61
2022 1.59 4.67
2021 1.82 4.73
2020 1.72 4.8
2019 1.74 4.87
2018 1.71 4.93
2017 1.71 4.99
2016 1.74 5.01
2015 1.8 5.03
2014 1.93 5.12
2013 1.93 5.16
2012 2.04 5.14
2011 2.02 5.14
2010 2.2 5.23
2009 2.23 5.26
2008 2.15 5.32
2007 2.09 5.4
2006 2.08 5.51
2005 2.05 5.58
2004 2.04 5.6
2003 1.99 5.58
2002 1.93 5.57
2001 1.95 5.62
2000 2.08 5.67
1999 1.99 5.75
1998 2.05 5.81
1997 2.04 5.84
1996 2.12 5.83
1995 2.08 5.82
1994 2.14 5.89
1993 2.22 6
1992 2.21 6.08
1991 2.18 6.14
1990 2.3 6.2
1989 2.19 6.3
1988 2.26 6.38
1987 2.06 6.41
1986 1.92 6.49
1985 1.93 6.6
1984 2.08 6.72
1983 2.24 6.81
1982 2.27 6.87
1981 2.33 6.93
1980 2.48 6.99
1979 2.49 7.04
1978 2.35 7.06
1977 2.31 7.07
1976 2.52 7.09
1975 2.65 7.1
1974 2.66 7.12
1973 2.94 7.06
1972 3.09 7.05
1971 2.92 7.04
1970 2.81 7
1969 2.99 6.95
1968 3.06 6.9
1967 3.28 6.86
1966 3.59 6.8
1965 3.73 6.73
1964 3.88 6.68
1963 3.99 6.65
1962 3.98 6.61
1961 3.88 6.56
1960 4.29 6.54

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

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

According to the latest available data on birth rates, the fertility rate in Iceland was 1.59 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 Iceland vs Tanzania population clock for a dynamic visualization of the changing population.

Natural population change by year

Iceland
Tanzania
1x
Year Natural population change
Iceland Tanzania
2023 1,697 1,960,623
2022 1,719 1,927,960
2021 2,534 1,880,137
2020 2,199 1,861,377
2019 2,163 1,816,669
2018 1,975 1,777,852
2017 1,854 1,726,909
2016 1,711 1,659,502
2015 1,952 1,592,882
2014 2,324 1,565,630
2013 2,169 1,509,008
2012 2,566 1,439,325
2011 2,521 1,384,886
2010 2,862 1,363,477
2009 3,026 1,332,015
2008 2,825 1,303,728
2007 2,617 1,278,285
2006 2,491 1,257,927
2005 2,433 1,224,165
2004 2,425 1,175,379
2003 2,317 1,118,435
2002 2,243 1,063,195
2001 2,365 1,026,242
2000 2,475 985,185
1999 2,192 948,659
1998 2,357 920,806
1997 2,305 882,544
1996 2,447 868,524
1995 2,354 838,980
1994 2,713 803,953
1993 2,875 778,044
1992 2,898 767,961
1991 2,733 762,011
1990 3,058 750,825
1989 2,832 743,854
1988 2,847 736,551
1987 2,360 718,580
1986 2,384 705,677
1985 2,221 697,867
1984 2,539 687,435
1983 2,702 679,720
1982 2,736 662,627
1981 2,677 645,496
1980 2,966 629,444
1979 2,980 613,388
1978 2,727 595,024
1977 2,551 574,938
1976 2,951 553,617
1975 2,965 533,906
1974 2,776 515,152
1973 3,121 488,429
1972 3,241 467,305
1971 2,782 449,014
1970 2,576 427,988
1969 2,766 408,322
1968 2,841 389,467
1967 3,021 374,763
1966 3,305 360,229
1965 3,442 343,456
1964 3,459 328,527
1963 3,490 314,644
1962 3,465 300,663
1961 3,312 286,839
1960 3,758 275,814

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

GeoRank.org/birth-rate/iceland/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 +0.44% in Iceland and +2.94% in Tanzania.

For the past 10 years, the annual natural population change has been +0.57% in Iceland and +3.05% in Tanzania.

Birth rate in Iceland vs Tanzania by year

Iceland
Tanzania

Annual births per 1,000 people

1x
Year Annual births per 1,000 people
Iceland Tanzania
2023 11 35.2
2022 11.5 35.6
2021 13.1 36
2020 12.3 36.4
2019 12.3 36.9
2018 12 37.3
2017 11.9 37.6
2016 12 37.6
2015 12.5 37.6
2014 13.4 38.4
2013 13.4 38.4
2012 14.1 38.1
2011 14.1 38.1
2010 15.4 38.8
2009 15.8 39.2
2008 15.2 39.6
2007 14.6 40.2
2006 14.5 41
2005 14.4 41.5
2004 14.5 41.5
2003 14.3 41.3
2002 14.1 41.2
2001 14.4 41.4
2000 15.3 41.5
1999 14.8 41.8
1998 15.2 42.1
1997 15.3 42.1
1996 16.1 42.3
1995 16 41.9
1994 16.7 41.5
1993 17.5 41.7
1992 17.7 42.3
1991 17.6 42.7
1990 18.7 43
1989 18 43.5
1988 18.7 44
1987 16.6 44.3
1986 16.4 44.9
1985 16 45.7
1984 17.2 46.4
1983 18.4 47.1
1982 18.5 47.5
1981 18.8 47.9
1980 19.8 48.3
1979 19.8 48.8
1978 18.6 49.2
1977 18 49.5
1976 19.5 49.8
1975 20.1 50.2
1974 19.9 50.6
1973 21.7 50.3
1972 22.4 50.4
1971 20.8 50.6
1970 19.7 50.4
1969 20.7 50.3
1968 21 50.2
1967 22.2 50.3
1966 24 50.2
1965 24.6 49.9
1964 25.3 49.8
1963 26 49.7
1962 25.8 49.4
1961 25.5 49.1
1960 28 49

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

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

The latest reported birth rate per 1,000 people in 2023 was 11 in Iceland and 35.2 in Tanzania, compared with 28 and 49, respectively, in 1960.

Birth rate data compared

Iceland Tanzania
Fertility rate 1.59 4.61
Fertility rate rank 127/196 12/196
Birth rate 11 35.2
Birth rate rank 132/196 10/196
Population change due to births and deaths +1,697 +1,960,623
Natural population change rank 138/196 8/196
Natural population change rate +0.44% +2.94%
Population growth +0.22% +2.92%
Population growth rank 155/197 18/197
Age at first childbirth 28.8 years 19.9 years
Average age at childbearing 31 years 28.9 years
Annual births per 1,000 women ages 15-19 2.72 111.5
Annual births per 1,000 women ages 20-29 67.1 199.8
Annual births per 1,000 women ages 30+ 20.4 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 n/a 31.1%
Share of births attended by skilled health staff 97.4% 63.5%
Maternal mortality per live birth 0.003% 0.28%
Neonatal mortality rate (before reaching 28 days of age) 0.13% 2.06%
Infant mortality rate (before reaching 1 year of age) 0.19% 2.99%
Mortality rate before reaching 5 years of age 0.26% 3.89%
Life expectancy 83.3 years 67.6 years

Children 0-14 years as share of population

Iceland
Factual

UN forecast
Tanzania
Factual

UN forecast
1x
Year Young
Iceland Tanzania
2100 11.8% 23.4%
2099 11.8% 23.6%
2098 11.8% 23.8%
2097 11.8% 23.9%
2096 11.9% 24.1%
2095 11.9% 24.3%
2094 11.9% 24.5%
2093 11.9% 24.7%
2092 11.9% 24.8%
2091 11.9% 25%
2090 11.9% 25.2%
2089 11.9% 25.4%
2088 11.9% 25.6%
2087 11.9% 25.8%
2086 11.9% 26%
2085 11.9% 26.2%
2084 11.9% 26.4%
2083 11.9% 26.6%
2082 11.9% 26.8%
2081 11.9% 27.1%
2080 11.9% 27.3%
2079 12% 27.5%
2078 12% 27.7%
2077 12% 28%
2076 12% 28.2%
2075 12.1% 28.4%
2074 12.1% 28.7%
2073 12.1% 28.9%
2072 12.2% 29.1%
2071 12.2% 29.4%
2070 12.3% 29.6%
2069 12.4% 29.8%
2068 12.4% 30.1%
2067 12.5% 30.3%
2066 12.6% 30.6%
2065 12.6% 30.8%
2064 12.7% 31.1%
2063 12.8% 31.3%
2062 12.8% 31.6%
2061 12.9% 31.9%
2060 13% 32.1%
2059 13% 32.4%
2058 13.1% 32.7%
2057 13.2% 32.9%
2056 13.2% 33.2%
2055 13.3% 33.5%
2054 13.4% 33.8%
2053 13.4% 34.1%
2052 13.5% 34.3%
2051 13.6% 34.6%
2050 13.7% 34.9%
2049 13.8% 35.2%
2048 13.8% 35.5%
2047 14% 35.8%
2046 14.1% 36.1%
2045 14.2% 36.4%
2044 14.3% 36.7%
2043 14.4% 37%
2042 14.6% 37.3%
2041 14.8% 37.6%
2040 14.9% 37.9%
2039 15.1% 38.3%
2038 15.3% 38.6%
2037 15.5% 39%
2036 15.8% 39.3%
2035 16% 39.6%
2034 16.2% 40%
2033 16.4% 40.3%
2032 16.5% 40.7%
2031 16.6% 41%
2030 16.7% 41.3%
2029 16.9% 41.6%
2028 17% 41.8%
2027 17.2% 42.1%
2026 17.4% 42.2%
2025 17.6% 42.4%
2024 17.8% 42.5%
2023 18.1% 42.7%
2022 18.4% 42.9%
2021 18.6% 43.1%
2020 18.7% 43.4%
2019 18.9% 43.6%
2018 19.2% 43.8%
2017 19.6% 44%
2016 19.9% 44.2%
2015 20.2% 44.5%
2014 20.4% 44.8%
2013 20.6% 44.9%
2012 20.7% 45.1%
2011 20.8% 45.2%
2010 20.9% 45.3%
2009 20.9% 45.3%
2008 20.9% 45.1%
2007 21.1% 45%
2006 21.5% 44.9%
2005 22.1% 44.8%
2004 22.5% 44.7%
2003 22.8% 44.6%
2002 23% 44.6%
2001 23.2% 44.5%
2000 23.3% 44.6%
1999 23.4% 44.7%
1998 23.6% 44.7%
1997 23.9% 44.8%
1996 24.1% 44.7%
1995 24.4% 44.5%
1994 24.7% 44.9%
1993 24.8% 45.5%
1992 24.8% 46%
1991 24.8% 46.2%
1990 25% 46.3%
1989 25% 46.5%
1988 25.2% 46.7%
1987 25.6% 46.9%
1986 25.9% 47.2%
1985 26.2% 47.4%
1984 26.5% 47.5%
1983 26.7% 47.6%
1982 26.9% 47.5%
1981 27.2% 47.4%
1980 27.5% 47.2%
1979 27.9% 46.9%
1978 28.4% 46.7%
1977 29% 46.6%
1976 29.5% 46.5%
1975 30.1% 46.4%
1974 30.7% 46.3%
1973 31.2% 46.2%
1972 31.6% 46.1%
1971 32.1% 46.1%
1970 32.6% 46%
1969 33.2% 45.9%
1968 33.6% 45.8%
1967 34% 45.6%
1966 34.3% 45.4%
1965 34.5% 45.2%
1964 34.7% 45%
1963 34.9% 44.8%
1962 34.9% 44.8%
1961 35% 44.8%
1960 34.9% 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/iceland/tanzania | CC BY

Children aged 0-14 make up 17.8% of the population in Iceland and 42.5% in Tanzania in 2024, compared to 25% and 46.3% respectively in 1990.

Demographics of Iceland and Tanzania compared.

Fertility rates around the globe

1x

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

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

Maternal mortality chart: Iceland vs Tanzania

Iceland
Tanzania
1x
Year Maternal mortality per 100K births
Iceland Tanzania
2023 3 276
2022 5 152
2021 5 162
2020 12 160
2019 4 292
2018 4 319
2017 3 345
2016 3 396
2015 4 433
2014 4 454
2013 4 479
2012 4 448
2011 4 475
2010 5 486
2009 5 502
2008 4 511
2007 5 453
2006 5 366
2005 5 350
2004 6 365
2003 6 397
2002 7 454
2001 6 493
2000 7 568
1999 7 635
1998 8 739
1997 8 777
1996 7 775
1995 13 797
1994 9 816
1993 10 851
1992 12 864
1991 11 873
1990 13 900
1989 14 927
1988 11 949
1987 13 964
1986 15 971
1985 11 980

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

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

The maternal mortality rate, which is the probability of dying during childbirth or within 42 days of pregnancy termination, is 3 deaths per 100,000 live births in Iceland, compared to 276 deaths in Tanzania.

Under-five mortality rates

Iceland
Tanzania

Probability that a newborn baby will die before reaching age five

1x
Year Under 5 mortality rate
Iceland Tanzania
2023 0.26% 3.89%
2022 0.26% 4.05%
2021 0.27% 4.22%
2020 0.27% 4.42%
2019 0.27% 4.6%
2018 0.27% 4.8%
2017 0.26% 5.02%
2016 0.26% 5.25%
2015 0.26% 5.48%
2014 0.26% 5.67%
2013 0.26% 5.95%
2012 0.26% 6.21%
2011 0.27% 6.5%
2010 0.27% 6.86%
2009 0.27% 7.24%
2008 0.28% 7.7%
2007 0.29% 8.16%
2006 0.3% 8.69%
2005 0.31% 9.24%
2004 0.33% 9.86%
2003 0.34% 10.5%
2002 0.36% 11.3%
2001 0.38% 12.1%
2000 0.4% 12.8%
1999 0.42% 13.6%
1998 0.45% 14.2%
1997 0.47% 14.8%
1996 0.49% 15.2%
1995 0.52% 15.6%
1994 0.54% 15.9%
1993 0.56% 16.1%
1992 0.58% 16.3%
1991 0.61% 16.5%
1990 0.63% 16.7%
1989 0.65% 16.9%
1988 0.67% 17.2%
1987 0.7% 17.4%
1986 0.73% 17.6%
1985 0.75% 17.7%
1984 0.79% 17.8%
1983 0.83% 17.8%
1982 0.87% 17.8%
1981 0.92% 17.8%
1980 0.97% 17.9%
1979 1.03% 18.1%
1978 1.09% 18.4%
1977 1.15% 18.8%
1976 1.22% 19.2%
1975 1.29% 19.6%
1974 1.35% 20.1%
1973 1.41% 20.5%
1972 1.48% 20.9%
1971 1.54% 21.2%
1970 1.6% 21.6%
1969 1.66% 21.9%
1968 1.72% 22.2%
1967 1.79% 22.5%
1966 1.85% 22.8%
1965 1.92% 23.1%
1964 1.97% 23.4%
1963 2.02% 23.6%
1962 2.07% 23.8%
1961 2.11% 24%
1960 2.14% 24.2%

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

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

The chance that a newborn baby will die before reaching age five is 0.26% in Iceland 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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