What is the highest average age of mothers at childbirth recorded in Sao Tome and Principe?

The highest recorded value was 29.25 years in 1969.

What is the lowest average age of mothers at childbirth recorded in Sao Tome and Principe?

The lowest recorded value was 28.47 years in 2023.

How does Sao Tome and Principe rank for average age of mothers at childbirth?

Sao Tome and Principe ranks 171st out of 236 countries with data for 2023.

Is average age of mothers at childbirth rising or falling in Sao Tome and Principe?

Over the last ten years it is down 0.7%. The long-run trend across the full record is flat.

Where does this Sao Tome and Principe data come from?

The figures come from Human Fertility Database (2026); UN, World Population Prospects (2024) – with major processing by Our World in Data, published as part of Average age of mothers at childbirth. Statizoid updates them automatically from the source API.

Average age of mothers at childbirth in Sao Tome and Principe

Name: Average age of mothers at childbirth in Sao Tome and Principe
Creator: Human Fertility Database (2026); UN, World Population Prospects (2024) – with major processing by Our World in Data
License: CC BY 4.0 (Our World in Data)

Sao Tome and Principe: Average age of mothers at childbirth was 28.47 years in 2023. ▬ Flat

Latest (2023)

28.47 years

Change on year

down 0.1%

World rank

171st

of 236 countries

All-time high

29.25 years

in 1969

All-time low

28.47 years

in 2023

Years of data

1950–2023

Average age of mothers at childbirth in Sao Tome and Principe, 1950–2023

Source: Human Fertility Database (2026); UN, World Population Prospects (2024) – with major processing by Our World in Data. Measured in years.

Analysis

Sao Tome and Principe recorded 28.47 years for average age of mothers at childbirth in 2023. That is the lowest value across all 74 years on record.

Compared with earlier readings it is down 0.1% on the previous year and down 0.7% over ten years.

Over the whole period, average age of mothers at childbirth in Sao Tome and Principe peaked at 29.25 years in 1969 and was at its lowest, 28.47 years, in 2023.

Sao Tome and Principe ranks 171st of 236 countries on this measure, in the middle of the range.

Average age of mothers at childbirth in Sao Tome and Principe, year by year

Annual values for Average age of mothers at childbirth in Sao Tome and Principe, 1950 to 2023.
Year	years	Change
1950	29.24 years	—
1951	29.24 years	+0.0%
1952	29.24 years	+0.0%
1953	29.24 years	+0.0%
1954	29.24 years	+0.0%
1955	29.24 years	+0.0%
1956	29.24 years	+0.0%
1957	29.24 years	+0.0%
1958	29.24 years	+0.0%
1959	29.24 years	+0.0%
1960	29.24 years	+0.0%
1961	29.24 years	+0.0%
1962	29.24 years	+0.0%
1963	29.24 years	+0.0%
1964	29.24 years	+0.0%
1965	29.24 years	+0.0%
1966	29.24 years	+0.0%
1967	29.24 years	+0.0%
1968	29.24 years	+0.0%
1969	29.25 years	+0.0%
1970	29.25 years	+0.0%
1971	29.25 years	+0.0%
1972	29.25 years	+0.0%
1973	29.25 years	+0.0%
1974	29.25 years	+0.0%
1975	29.25 years	+0.0%
1976	29.25 years	+0.0%
1977	29.25 years	+0.0%
1978	29.25 years	+0.0%
1979	29.24 years	-0.0%
1980	29.24 years	+0.0%
1981	29.24 years	+0.0%
1982	29.24 years	+0.0%
1983	29.24 years	-0.0%
1984	29.24 years	+0.0%
1985	29.24 years	-0.0%
1986	29.24 years	+0.0%
1987	29.24 years	+0.0%
1988	29.24 years	-0.0%
1989	29.24 years	+0.0%
1990	29.24 years	+0.0%
1991	29.24 years	-0.0%
1992	29.24 years	+0.0%
1993	29.24 years	-0.0%
1994	29.24 years	+0.0%
1995	29.24 years	+0.0%
1996	29.19 years	-0.2%
1997	29.19 years	+0.0%
1998	29.07 years	-0.4%
1999	28.99 years	-0.3%
2000	28.92 years	-0.3%
2001	28.82 years	-0.3%
2002	28.85 years	+0.1%
2003	28.87 years	+0.1%
2004	28.87 years	+0.0%
2005	28.9 years	+0.1%
2006	28.91 years	+0.0%
2007	28.91 years	+0.0%
2008	28.84 years	-0.3%
2009	28.76 years	-0.3%
2010	28.68 years	-0.3%
2011	28.66 years	-0.1%
2012	28.64 years	-0.1%
2013	28.68 years	+0.1%
2014	28.69 years	+0.0%
2015	28.67 years	-0.1%
2016	28.64 years	-0.1%
2017	28.61 years	-0.1%
2018	28.59 years	-0.1%
2019	28.57 years	-0.1%
2020	28.53 years	-0.1%
2021	28.51 years	-0.1%
2022	28.49 years	-0.1%
2023	28.47 years	-0.1%

Sao Tome and Principe compared with similar countries

Sao Tome and Principe's 28.47 years is below the median for lower middle income countries, which is 28.56 years, 100% of the median. (47 countries reporting)
Sao Tome and Principe's 28.47 years is below the median for Sub-Saharan Africa, which is 28.9 years, 98% of the median. (48 countries reporting)

Averages by decade

Decade	Average	Lowest	Highest	Years
1950s	29.24 years	29.24 years	29.24 years	10
1960s	29.24 years	29.24 years	29.25 years	10
1970s	29.24 years	29.24 years	29.25 years	10
1980s	29.24 years	29.24 years	29.24 years	10
1990s	29.19 years	28.99 years	29.24 years	10
2000s	28.87 years	28.76 years	28.92 years	10
2010s	28.64 years	28.57 years	28.69 years	10
2020s	28.5 years	28.47 years	28.53 years	4

Countries ranked near Sao Tome and Principe

168 Gabon 28.52 years compare
169 Georgia 28.5 years compare
170 British Virgin Islands 28.48 years compare
172 Kyrgyzstan 28.46 years compare
173 Zambia 28.44 years compare
174 Cameroon 28.42 years compare

See the full ranking of 236 places →

More reference data data for Sao Tome and Principe

Emission Totals - Indirect emissions (N2O) - Manure applied to Soils 0.0038 (2050)
Emission Totals - Indirect emissions (N2O) - Manure left on Pasture 0.006 (2050)
Emission Totals - Indirect emissions (N2O) - IPCC Agriculture 0.01 (2050)
Emission Totals - Indirect emissions (N2O) - Crop Residues 0.0003 (2050)
Emission Totals - Indirect emissions (N2O) - Agricultural Soils 0.01 (2050)
Emission Totals - Emissions (N2O) - Manure applied to Soils 0.0126 (2050)
Emission Totals - Emissions (N2O) - Manure Management 0.014 (2050)
Emission Totals - Emissions (N2O) - Manure left on Pasture 0.0319 (2050)
Emission Totals - Emissions (N2O) - IPCC Agriculture 0.0601 (2050)
Emission Totals - Emissions (N2O) - Crop Residues 0.0015 (2050)

All data for Sao Tome and Principe →

Frequently asked questions

What is average age of mothers at childbirth in Sao Tome and Principe?: Average age of mothers at childbirth in Sao Tome and Principe was 28.47 years in 2023, according to Human Fertility Database (2026); UN, World Population Prospects (2024) – with major processing by Our World in Data.
What is the highest average age of mothers at childbirth recorded in Sao Tome and Principe?: The highest recorded value was 29.25 years in 1969.
What is the lowest average age of mothers at childbirth recorded in Sao Tome and Principe?: The lowest recorded value was 28.47 years in 2023.
How does Sao Tome and Principe rank for average age of mothers at childbirth?: Sao Tome and Principe ranks 171st out of 236 countries with data for 2023.
Is average age of mothers at childbirth rising or falling in Sao Tome and Principe?: Over the last ten years it is down 0.7%. The long-run trend across the full record is flat.
Where does this Sao Tome and Principe data come from?: The figures come from Human Fertility Database (2026); UN, World Population Prospects (2024) – with major processing by Our World in Data, published as part of Average age of mothers at childbirth. Statizoid updates them automatically from the source API.

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Average age of mothers at childbirth in Sao Tome and Principe. Statizoid, drawing on Human Fertility Database (2026); UN, World Population Prospects (2024) – with major processing by Our World in Data. Retrieved 08 November 2026, from https://reference.statizoid.com/stat/period-average-age-of-mothers/sao-tome-and-principe/

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About this data

Indicator: Average age of mothers at childbirth
Unit: years
Source: Human Fertility Database (2026); UN, World Population Prospects (2024) – with major processing by Our World in Data
Licence: CC BY 4.0 (Our World in Data)
Coverage: 236 places, 17,683 data points, 1891–2023
Last refreshed: 30 October 2026

Mean age of mothers at the birth of their children if women were subject throughout their lives to the age-specific fertility rates observed in a given year.