Sao Tome and Principe has an annual birth rate of 28.2 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 3.64 in Sao Tome and Principe and 4.61 in Tanzania — 26.4% difference.
1960 vs 2023, the fertility rate has decreased by 41.6% in Sao Tome and Principe and by 29.5% in Tanzania — in 1960, it was 6.24 and 6.54, respectively.
- Sao Tome and Principe is ranked 39/196 by birth rate compared to 10/196 for Tanzania.
- The mean age for first-time mothers is 19.4 years in Sao Tome and Principe, compared to 19.9 years in Tanzania.
- The mean age at childbearing (for all the births, not just the first) is 28.4 in Sao Tome and Principe — it's 28.9 in Tanzania.
- Annual births per 1,000 women ages 15-19 (adolescent birth rate or teenage mother rate) is 86.2 in Sao Tome and Principe vs 113.2 in Tanzania.
- In Sao Tome and Principe, 25.2% of the population is composed of women of reproductive age (15-49), compared to 24.2% in Tanzania.
Fertility rate in Sao Tome and Principe vs Tanzania by year
| Year | Fertility rate | |
|---|---|---|
Sao Tome
|
Tanzania
|
|
| 2023 | 3.64 | 4.61 |
| 2022 | 3.7 | 4.67 |
| 2021 | 3.76 | 4.73 |
| 2020 | 3.83 | 4.8 |
| 2019 | 3.9 | 4.87 |
| 2018 | 3.98 | 4.93 |
| 2017 | 4.07 | 4.99 |
| 2016 | 4.2 | 5.01 |
| 2015 | 4.35 | 5.03 |
| 2014 | 4.49 | 5.12 |
| 2013 | 4.58 | 5.16 |
| 2012 | 4.66 | 5.14 |
| 2011 | 4.72 | 5.14 |
| 2010 | 4.77 | 5.23 |
| 2009 | 4.84 | 5.26 |
| 2008 | 4.91 | 5.32 |
| 2007 | 4.96 | 5.4 |
| 2006 | 4.93 | 5.51 |
| 2005 | 4.94 | 5.58 |
| 2004 | 4.96 | 5.6 |
| 2003 | 5.01 | 5.58 |
| 2002 | 5.06 | 5.57 |
| 2001 | 5.1 | 5.62 |
| 2000 | 5.16 | 5.67 |
| 1999 | 5.23 | 5.75 |
| 1998 | 5.3 | 5.81 |
| 1997 | 5.4 | 5.84 |
| 1996 | 5.47 | 5.83 |
| 1995 | 5.55 | 5.82 |
| 1994 | 5.56 | 5.89 |
| 1993 | 5.64 | 6 |
| 1992 | 5.7 | 6.08 |
| 1991 | 5.77 | 6.14 |
| 1990 | 5.83 | 6.2 |
| 1989 | 5.88 | 6.3 |
| 1988 | 5.94 | 6.38 |
| 1987 | 5.99 | 6.41 |
| 1986 | 6.05 | 6.49 |
| 1985 | 6.1 | 6.6 |
| 1984 | 6.16 | 6.72 |
| 1983 | 6.22 | 6.81 |
| 1982 | 6.28 | 6.87 |
| 1981 | 6.33 | 6.93 |
| 1980 | 6.39 | 6.99 |
| 1979 | 6.43 | 7.04 |
| 1978 | 6.47 | 7.06 |
| 1977 | 6.5 | 7.07 |
| 1976 | 6.52 | 7.09 |
| 1975 | 6.53 | 7.1 |
| 1974 | 6.53 | 7.12 |
| 1973 | 6.53 | 7.06 |
| 1972 | 6.51 | 7.05 |
| 1971 | 6.49 | 7.04 |
| 1970 | 6.47 | 7 |
| 1969 | 6.44 | 6.95 |
| 1968 | 6.42 | 6.9 |
| 1967 | 6.39 | 6.86 |
| 1966 | 6.37 | 6.8 |
| 1965 | 6.35 | 6.73 |
| 1964 | 6.33 | 6.68 |
| 1963 | 6.31 | 6.65 |
| 1962 | 6.28 | 6.61 |
| 1961 | 6.26 | 6.56 |
| 1960 | 6.24 | 6.54 |
Data sources: World Bank | Health (1960–2023, retrieved 2026-04-06).
GeoRank.org/birth-rate/sao-tome-and-principe/tanzania | CC BY 
According to the latest available data on birth rates, the fertility rate in Sao Tome and Principe was 3.64 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 Sao Tome and Principe vs Tanzania population clock for a dynamic visualization of the changing population.
Natural population change by year
| Year | Natural population change | |
|---|---|---|
|
Sao Tome
|
Tanzania
|
|
| 2023 | 5,221 | 1,960,623 |
| 2022 | 5,102 | 1,927,960 |
| 2021 | 4,954 | 1,880,137 |
| 2020 | 4,874 | 1,861,377 |
| 2019 | 4,932 | 1,816,669 |
| 2018 | 4,957 | 1,777,852 |
| 2017 | 5,007 | 1,726,909 |
| 2016 | 5,125 | 1,659,502 |
| 2015 | 5,269 | 1,592,882 |
| 2014 | 5,381 | 1,565,630 |
| 2013 | 5,449 | 1,509,008 |
| 2012 | 5,501 | 1,439,325 |
| 2011 | 5,445 | 1,384,886 |
| 2010 | 5,391 | 1,363,477 |
| 2009 | 5,349 | 1,332,015 |
| 2008 | 5,297 | 1,303,728 |
| 2007 | 5,226 | 1,278,285 |
| 2006 | 5,057 | 1,257,927 |
| 2005 | 4,897 | 1,224,165 |
| 2004 | 4,810 | 1,175,379 |
| 2003 | 4,702 | 1,118,435 |
| 2002 | 4,591 | 1,063,195 |
| 2001 | 4,471 | 1,026,242 |
| 2000 | 4,334 | 985,185 |
| 1999 | 4,221 | 948,659 |
| 1998 | 4,120 | 920,806 |
| 1997 | 4,041 | 882,544 |
| 1996 | 3,993 | 868,524 |
| 1995 | 3,948 | 838,980 |
| 1994 | 3,860 | 803,953 |
| 1993 | 3,841 | 778,044 |
| 1992 | 3,822 | 767,961 |
| 1991 | 3,801 | 762,011 |
| 1990 | 3,719 | 750,825 |
| 1989 | 3,576 | 743,854 |
| 1988 | 3,544 | 736,551 |
| 1987 | 3,440 | 718,580 |
| 1986 | 3,180 | 705,677 |
| 1985 | 3,242 | 697,867 |
| 1984 | 3,163 | 687,435 |
| 1983 | 3,100 | 679,720 |
| 1982 | 3,047 | 662,627 |
| 1981 | 3,015 | 645,496 |
| 1980 | 2,965 | 629,444 |
| 1979 | 2,893 | 613,388 |
| 1978 | 2,800 | 595,024 |
| 1977 | 2,705 | 574,938 |
| 1976 | 2,608 | 553,617 |
| 1975 | 2,515 | 533,906 |
| 1974 | 2,422 | 515,152 |
| 1973 | 2,329 | 488,429 |
| 1972 | 2,232 | 467,305 |
| 1971 | 2,127 | 449,014 |
| 1970 | 1,980 | 427,988 |
| 1969 | 1,862 | 408,322 |
| 1968 | 1,767 | 389,467 |
| 1967 | 1,693 | 374,763 |
| 1966 | 1,642 | 360,229 |
| 1965 | 1,611 | 343,456 |
| 1964 | 1,600 | 328,527 |
| 1963 | 1,609 | 314,644 |
| 1962 | 1,625 | 300,663 |
| 1961 | 1,657 | 286,839 |
| 1960 | 1,547 | 275,814 |
Data sources: World Bank | Health (1960–2023, retrieved 2026-04-06).
GeoRank.org/birth-rate/sao-tome-and-principe/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 +2.26% in Sao Tome and Principe and +2.94% in Tanzania.
For the past 10 years, the annual natural population change has been +2.4% in Sao Tome and Principe and +3.05% in Tanzania.
Birth rate in Sao Tome and Principe vs Tanzania by year
Annual births per 1,000 people
| Year | Annual births per 1,000 people | |
|---|---|---|
|
Sao Tome
|
Tanzania
|
|
| 2023 | 28.2 | 35.2 |
| 2022 | 28.3 | 35.6 |
| 2021 | 28.5 | 36 |
| 2020 | 28.6 | 36.4 |
| 2019 | 29.2 | 36.9 |
| 2018 | 29.8 | 37.3 |
| 2017 | 30.6 | 37.6 |
| 2016 | 31.7 | 37.6 |
| 2015 | 33 | 37.6 |
| 2014 | 34.3 | 38.4 |
| 2013 | 35.4 | 38.4 |
| 2012 | 36.4 | 38.1 |
| 2011 | 36.8 | 38.1 |
| 2010 | 37.3 | 38.8 |
| 2009 | 37.9 | 39.2 |
| 2008 | 38.5 | 39.6 |
| 2007 | 38.9 | 40.2 |
| 2006 | 38.9 | 41 |
| 2005 | 39 | 41.5 |
| 2004 | 39.2 | 41.5 |
| 2003 | 39.6 | 41.3 |
| 2002 | 39.8 | 41.2 |
| 2001 | 40 | 41.4 |
| 2000 | 39.7 | 41.5 |
| 1999 | 39.4 | 41.8 |
| 1998 | 39.2 | 42.1 |
| 1997 | 39.2 | 42.1 |
| 1996 | 39.3 | 42.3 |
| 1995 | 39.5 | 41.9 |
| 1994 | 39.4 | 41.5 |
| 1993 | 39.8 | 41.7 |
| 1992 | 40.2 | 42.3 |
| 1991 | 40.7 | 42.7 |
| 1990 | 40.7 | 43 |
| 1989 | 40.9 | 43.5 |
| 1988 | 40.9 | 44 |
| 1987 | 41 | 44.3 |
| 1986 | 41 | 44.9 |
| 1985 | 41 | 45.7 |
| 1984 | 41.1 | 46.4 |
| 1983 | 41.2 | 47.1 |
| 1982 | 41.3 | 47.5 |
| 1981 | 41.5 | 47.9 |
| 1980 | 41.6 | 48.3 |
| 1979 | 41.6 | 48.8 |
| 1978 | 41.4 | 49.2 |
| 1977 | 41.3 | 49.5 |
| 1976 | 41.1 | 49.8 |
| 1975 | 40.9 | 50.2 |
| 1974 | 40.6 | 50.6 |
| 1973 | 40.3 | 50.3 |
| 1972 | 39.9 | 50.4 |
| 1971 | 39.5 | 50.6 |
| 1970 | 38.8 | 50.4 |
| 1969 | 38.2 | 50.3 |
| 1968 | 37.8 | 50.2 |
| 1967 | 37.7 | 50.3 |
| 1966 | 38 | 50.2 |
| 1965 | 38.6 | 49.9 |
| 1964 | 39.7 | 49.8 |
| 1963 | 41.1 | 49.7 |
| 1962 | 42.7 | 49.4 |
| 1961 | 44.6 | 49.1 |
| 1960 | 44.6 | 49 |
Data sources: World Bank | Health (1960–2023, retrieved 2026-04-06).
GeoRank.org/birth-rate/sao-tome-and-principe/tanzania | CC BY
The latest reported birth rate per 1,000 people in 2023 was 28.2 in Sao Tome and Principe and 35.2 in Tanzania, compared with 44.6 and 49, respectively, in 1960.
Birth rate data compared
|
Sao Tome
|
Tanzania
|
|
|---|---|---|
| Fertility rate | 3.64 | 4.61 |
| Fertility rate rank | 41/196 | 12/196 |
| Birth rate | 28.2 | 35.2 |
| Birth rate rank | 39/196 | 10/196 |
| Population change due to births and deaths | +5,221 | +1,960,623 |
| Natural population change rank | 126/196 | 8/196 |
| Natural population change rate | +2.26% | +2.94% |
| Population growth | +2.02% | +2.92% |
| Population growth rank | 49/197 | 18/197 |
| Age at first childbirth | 19.4 years | 19.9 years |
| Average age at childbearing | 28.4 years | 28.9 years |
| Annual births per 1,000 women ages 15-19 | 82.5 | 111.5 |
| Annual births per 1,000 women ages 20-29 | 169.9 | 199.8 |
| Annual births per 1,000 women ages 30+ | 47.4 | 71.3 |
| Female of reproductive age (15-49), share of population | 25.2% | 24.2% |
| Any modern method of contraceptive prevalence among married women ages 15-49 | 46% | 31.1% |
| Share of births attended by skilled health staff | 96.8% | 63.5% |
| Maternal mortality per live birth | 0.08% | 0.28% |
| Neonatal mortality rate (before reaching 28 days of age) | 0.68% | 2.06% |
| Infant mortality rate (before reaching 1 year of age) | 0.94% | 2.99% |
| Mortality rate before reaching 5 years of age | 1.39% | 3.89% |
| Life expectancy | 70.3 years | 67.6 years |
Children 0-14 years as share of population
| Year | Young | |
|---|---|---|
|
Sao Tome
|
Tanzania
|
|
| 2100 | 19.5% | 23.4% |
| 2099 | 19.6% | 23.6% |
| 2098 | 19.8% | 23.8% |
| 2097 | 19.9% | 23.9% |
| 2096 | 20% | 24.1% |
| 2095 | 20.2% | 24.3% |
| 2094 | 20.3% | 24.5% |
| 2093 | 20.4% | 24.7% |
| 2092 | 20.6% | 24.8% |
| 2091 | 20.7% | 25% |
| 2090 | 20.9% | 25.2% |
| 2089 | 21.1% | 25.4% |
| 2088 | 21.2% | 25.6% |
| 2087 | 21.4% | 25.8% |
| 2086 | 21.6% | 26% |
| 2085 | 21.8% | 26.2% |
| 2084 | 22% | 26.4% |
| 2083 | 22.2% | 26.6% |
| 2082 | 22.4% | 26.8% |
| 2081 | 22.6% | 27.1% |
| 2080 | 22.9% | 27.3% |
| 2079 | 23.1% | 27.5% |
| 2078 | 23.3% | 27.7% |
| 2077 | 23.5% | 28% |
| 2076 | 23.7% | 28.2% |
| 2075 | 24% | 28.4% |
| 2074 | 24.2% | 28.7% |
| 2073 | 24.4% | 28.9% |
| 2072 | 24.6% | 29.1% |
| 2071 | 24.8% | 29.4% |
| 2070 | 25% | 29.6% |
| 2069 | 25.2% | 29.8% |
| 2068 | 25.4% | 30.1% |
| 2067 | 25.6% | 30.3% |
| 2066 | 25.9% | 30.6% |
| 2065 | 26.1% | 30.8% |
| 2064 | 26.3% | 31.1% |
| 2063 | 26.5% | 31.3% |
| 2062 | 26.8% | 31.6% |
| 2061 | 27% | 31.9% |
| 2060 | 27.3% | 32.1% |
| 2059 | 27.5% | 32.4% |
| 2058 | 27.8% | 32.7% |
| 2057 | 28.1% | 32.9% |
| 2056 | 28.4% | 33.2% |
| 2055 | 28.7% | 33.5% |
| 2054 | 29% | 33.8% |
| 2053 | 29.4% | 34.1% |
| 2052 | 29.7% | 34.3% |
| 2051 | 30.1% | 34.6% |
| 2050 | 30.4% | 34.9% |
| 2049 | 30.8% | 35.2% |
| 2048 | 31.1% | 35.5% |
| 2047 | 31.5% | 35.8% |
| 2046 | 31.8% | 36.1% |
| 2045 | 32.1% | 36.4% |
| 2044 | 32.5% | 36.7% |
| 2043 | 32.8% | 37% |
| 2042 | 33.1% | 37.3% |
| 2041 | 33.4% | 37.6% |
| 2040 | 33.6% | 37.9% |
| 2039 | 33.9% | 38.3% |
| 2038 | 34.1% | 38.6% |
| 2037 | 34.4% | 39% |
| 2036 | 34.6% | 39.3% |
| 2035 | 34.7% | 39.6% |
| 2034 | 34.9% | 40% |
| 2033 | 35.1% | 40.3% |
| 2032 | 35.3% | 40.7% |
| 2031 | 35.5% | 41% |
| 2030 | 35.8% | 41.3% |
| 2029 | 36.1% | 41.6% |
| 2028 | 36.6% | 41.8% |
| 2027 | 37% | 42.1% |
| 2026 | 37.3% | 42.2% |
| 2025 | 37.6% | 42.4% |
| 2024 | 37.8% | 42.5% |
| 2023 | 38.3% | 42.7% |
| 2022 | 38.8% | 42.9% |
| 2021 | 39.4% | 43.1% |
| 2020 | 39.9% | 43.4% |
| 2019 | 40.5% | 43.6% |
| 2018 | 40.9% | 43.8% |
| 2017 | 41.4% | 44% |
| 2016 | 41.7% | 44.2% |
| 2015 | 41.9% | 44.5% |
| 2014 | 42% | 44.8% |
| 2013 | 42% | 44.9% |
| 2012 | 42% | 45.1% |
| 2011 | 42% | 45.2% |
| 2010 | 42.1% | 45.3% |
| 2009 | 42.1% | 45.3% |
| 2008 | 42.1% | 45.1% |
| 2007 | 42% | 45% |
| 2006 | 42% | 44.9% |
| 2005 | 42% | 44.8% |
| 2004 | 42.1% | 44.7% |
| 2003 | 42.2% | 44.6% |
| 2002 | 42.3% | 44.6% |
| 2001 | 42.5% | 44.5% |
| 2000 | 42.8% | 44.6% |
| 1999 | 43.4% | 44.7% |
| 1998 | 43.9% | 44.7% |
| 1997 | 44.3% | 44.8% |
| 1996 | 44.7% | 44.7% |
| 1995 | 44.9% | 44.5% |
| 1994 | 45.1% | 44.9% |
| 1993 | 45.2% | 45.5% |
| 1992 | 45.2% | 46% |
| 1991 | 45.1% | 46.2% |
| 1990 | 45.1% | 46.3% |
| 1989 | 45% | 46.5% |
| 1988 | 45% | 46.7% |
| 1987 | 44.9% | 46.9% |
| 1986 | 44.7% | 47.2% |
| 1985 | 44.5% | 47.4% |
| 1984 | 44.4% | 47.5% |
| 1983 | 44.5% | 47.6% |
| 1982 | 44.5% | 47.5% |
| 1981 | 44.7% | 47.4% |
| 1980 | 44.9% | 47.2% |
| 1979 | 45.1% | 46.9% |
| 1978 | 45.2% | 46.7% |
| 1977 | 45.3% | 46.6% |
| 1976 | 45.4% | 46.5% |
| 1975 | 45.5% | 46.4% |
| 1974 | 45.6% | 46.3% |
| 1973 | 45.7% | 46.2% |
| 1972 | 45.9% | 46.1% |
| 1971 | 46.1% | 46.1% |
| 1970 | 46.2% | 46% |
| 1969 | 45.8% | 45.9% |
| 1968 | 44.9% | 45.8% |
| 1967 | 44% | 45.6% |
| 1966 | 42.9% | 45.4% |
| 1965 | 41.6% | 45.2% |
| 1964 | 40.2% | 45% |
| 1963 | 38.5% | 44.8% |
| 1962 | 36.6% | 44.8% |
| 1961 | 34.3% | 44.8% |
| 1960 | 32.9% | 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/sao-tome-and-principe/tanzania | CC BY
Children aged 0-14 make up 37.8% of the population in Sao Tome and Principe and 42.5% in Tanzania in 2024, compared to 45.1% and 46.3% respectively in 1990.
Demographics of Sao Tome and Principe and Tanzania compared.
Fertility rates around the globe
Data sources: World Bank | Health (1960–2023, retrieved 2026-04-06).
GeoRank.org/birth-rate/sao-tome-and-principe/tanzania | CC BY
Maternal mortality chart: Sao Tome and Principe vs Tanzania
| Year | Maternal mortality per 100K births | |
|---|---|---|
|
Sao Tome
|
Tanzania
|
|
| 2023 | 75 | 276 |
| 2022 | 82 | 152 |
| 2021 | 98 | 162 |
| 2020 | 92 | 160 |
| 2019 | 95 | 292 |
| 2018 | 100 | 319 |
| 2017 | 110 | 345 |
| 2016 | 119 | 396 |
| 2015 | 128 | 433 |
| 2014 | 138 | 454 |
| 2013 | 150 | 479 |
| 2012 | 158 | 448 |
| 2011 | 164 | 475 |
| 2010 | 170 | 486 |
| 2009 | 172 | 502 |
| 2008 | 174 | 511 |
| 2007 | 174 | 453 |
| 2006 | 177 | 366 |
| 2005 | 181 | 350 |
| 2004 | 177 | 365 |
| 2003 | 178 | 397 |
| 2002 | 179 | 454 |
| 2001 | 178 | 493 |
| 2000 | 180 | 568 |
| 1999 | 179 | 635 |
| 1998 | 175 | 739 |
| 1997 | 173 | 777 |
| 1996 | 171 | 775 |
| 1995 | 172 | 797 |
| 1994 | 168 | 816 |
| 1993 | 166 | 851 |
| 1992 | 164 | 864 |
| 1991 | 166 | 873 |
| 1990 | 164 | 900 |
| 1989 | 167 | 927 |
| 1988 | 157 | 949 |
| 1987 | 161 | 964 |
| 1986 | 175 | 971 |
| 1985 | 159 | 980 |
Data sources: World Bank | Gender (1985–2023, retrieved 2026-04-06).
GeoRank.org/birth-rate/sao-tome-and-principe/tanzania | CC BY
The maternal mortality rate, which is the probability of dying during childbirth or within 42 days of pregnancy termination, is 75 deaths per 100,000 live births in Sao Tome and Principe, compared to 276 deaths in Tanzania.
Under-five mortality rates
Probability that a newborn baby will die before reaching age five
| Year | Under 5 mortality rate | |
|---|---|---|
|
Sao Tome
|
Tanzania
|
|
| 2023 | 1.39% | 3.89% |
| 2022 | 1.46% | 4.05% |
| 2021 | 1.53% | 4.22% |
| 2020 | 1.6% | 4.42% |
| 2019 | 1.7% | 4.6% |
| 2018 | 1.81% | 4.8% |
| 2017 | 1.95% | 5.02% |
| 2016 | 2.11% | 5.25% |
| 2015 | 2.31% | 5.48% |
| 2014 | 2.54% | 5.67% |
| 2013 | 2.77% | 5.95% |
| 2012 | 3.04% | 6.21% |
| 2011 | 3.33% | 6.5% |
| 2010 | 3.63% | 6.86% |
| 2009 | 3.95% | 7.24% |
| 2008 | 4.3% | 7.7% |
| 2007 | 4.68% | 8.16% |
| 2006 | 5.11% | 8.69% |
| 2005 | 5.56% | 9.24% |
| 2004 | 6.05% | 9.86% |
| 2003 | 6.57% | 10.5% |
| 2002 | 7.1% | 11.3% |
| 2001 | 7.66% | 12.1% |
| 2000 | 8.21% | 12.8% |
| 1999 | 8.76% | 13.6% |
| 1998 | 9.26% | 14.2% |
| 1997 | 9.73% | 14.8% |
| 1996 | 10.1% | 15.2% |
| 1995 | 10.4% | 15.6% |
| 1994 | 10.7% | 15.9% |
| 1993 | 10.8% | 16.1% |
| 1992 | 10.9% | 16.3% |
| 1991 | 10.9% | 16.5% |
| 1990 | 10.8% | 16.7% |
| 1989 | 10.7% | 16.9% |
| 1988 | 10.6% | 17.2% |
| 1987 | 10.4% | 17.4% |
| 1986 | 11.4% | 17.6% |
| 1985 | 9.99% | 17.7% |
| 1984 | 9.77% | 17.8% |
| 1983 | 9.56% | 17.8% |
| 1982 | 9.37% | 17.8% |
| 1981 | 9.21% | 17.8% |
| 1980 | 9.1% | 17.9% |
| 1979 | 9.02% | 18.1% |
| 1978 | 8.96% | 18.4% |
| 1977 | 8.93% | 18.8% |
| 1976 | 8.89% | 19.2% |
| 1975 | 8.85% | 19.6% |
| 1974 | 8.79% | 20.1% |
| 1973 | 8.73% | 20.5% |
| 1972 | 8.67% | 20.9% |
| 1971 | 8.63% | 21.2% |
| 1970 | 8.64% | 21.6% |
| 1969 | 8.71% | 21.9% |
| 1968 | 8.85% | 22.2% |
| 1967 | 9.04% | 22.5% |
| 1966 | 9.29% | 22.8% |
| 1965 | 9.56% | 23.1% |
| 1964 | - | 23.4% |
| 1963 | - | 23.6% |
| 1962 | - | 23.8% |
| 1961 | - | 24% |
| 1960 | - | 24.2% |
Data sources: World Bank | Health (1960–2023, retrieved 2026-04-06).
GeoRank.org/birth-rate/sao-tome-and-principe/tanzania | CC BY
The chance that a newborn baby will die before reaching age five is 1.39% in Sao Tome and Principe and 3.89% in Tanzania. Above is a chart with historical data on under-five mortality rates.
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Data sources:
- World Bank | Health (1960–2024, retrieved 2026-04-06)
- United Nations | World Population Prospects (2025–2100, retrieved 2026-03-10)
- Central Intelligence Agency (CIA) (2025, retrieved 2026-02-20)
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