What is average age of mothers at childbirth in Guinea-Bissau?

Average age of mothers at childbirth in Guinea-Bissau was 29.47 years in 2023, according to Human Fertility Database (2025); UN, World Population Prospects (2024) – processed by Our World in Data.

What is the highest average age of mothers at childbirth recorded in Guinea-Bissau?

The highest recorded value was 30.19 years in 1996.

What is the lowest average age of mothers at childbirth recorded in Guinea-Bissau?

The lowest recorded value was 29.47 years in 2023.

How does Guinea-Bissau rank for average age of mothers at childbirth?

Guinea-Bissau ranks 99th out of 236 countries with data for 2023.

Is average age of mothers at childbirth rising or falling in Guinea-Bissau?

Over the last ten years it is down 1.5%. The long-run trend across the full record is flat.

Where does this Guinea-Bissau data come from?

The figures come from Human Fertility Database (2025); UN, World Population Prospects (2024) – processed 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 Guinea-Bissau

Name: Average age of mothers at childbirth in Guinea-Bissau
Creator: Human Fertility Database (2025); UN, World Population Prospects (2024) – processed by Our World in Data
License: CC BY 4.0 (Our World in Data)

Guinea-Bissau: Average age of mothers at childbirth was 29.47 years in 2023. ▬ Flat

Latest (2023)

29.47 years

Change on year

down 0.2%

World rank

99th

of 236 countries

All-time high

30.19 years

in 1996

All-time low

29.47 years

in 2023

Years of data

1950–2023

Average age of mothers at childbirth in Guinea-Bissau, 1950–2023

Source: Human Fertility Database (2025); UN, World Population Prospects (2024) – processed by Our World in Data. Measured in years.

Analysis

Guinea-Bissau recorded 29.47 years for average age of mothers at childbirth in 2023. That is the lowest value across all 74 years on record.

That represents a change of down 0.2% on the previous year and down 1.5% over ten years.

Over the whole period, average age of mothers at childbirth in Guinea-Bissau peaked at 30.19 years in 1996 and was at its lowest, 29.47 years, in 2023.

Guinea-Bissau ranks 99th of 236 countries on this measure, in the middle of the range.

Average age of mothers at childbirth in Guinea-Bissau, year by year

Annual values for Average age of mothers at childbirth in Guinea-Bissau, 1950 to 2023.
Year	years	Change
1950	30.12 years	—
1951	30.12 years	+0.0%
1952	30.12 years	+0.0%
1953	30.12 years	+0.0%
1954	30.12 years	+0.0%
1955	30.12 years	+0.0%
1956	30.12 years	+0.0%
1957	30.12 years	+0.0%
1958	30.12 years	+0.0%
1959	30.12 years	+0.0%
1960	30.12 years	+0.0%
1961	30.12 years	+0.0%
1962	30.12 years	+0.0%
1963	30.12 years	+0.0%
1964	30.12 years	+0.0%
1965	30.12 years	+0.0%
1966	30.13 years	+0.0%
1967	30.13 years	+0.0%
1968	30.13 years	+0.0%
1969	30.13 years	+0.0%
1970	30.13 years	+0.0%
1971	30.13 years	+0.0%
1972	30.13 years	+0.0%
1973	30.13 years	+0.0%
1974	30.13 years	+0.0%
1975	30.13 years	+0.0%
1976	30.13 years	+0.0%
1977	30.13 years	+0.0%
1978	30.14 years	+0.0%
1979	30.14 years	+0.0%
1980	30.14 years	+0.0%
1981	30.14 years	+0.0%
1982	30.14 years	+0.0%
1983	30.15 years	+0.0%
1984	30.15 years	+0.0%
1985	30.15 years	+0.0%
1986	30.15 years	+0.0%
1987	30.15 years	+0.0%
1988	30.15 years	-0.0%
1989	30.14 years	-0.0%
1990	30.14 years	-0.0%
1991	30.13 years	-0.0%
1992	30.13 years	-0.0%
1993	30.13 years	-0.0%
1994	30.11 years	-0.1%
1995	30.14 years	+0.1%
1996	30.19 years	+0.1%
1997	30.12 years	-0.2%
1998	30.09 years	-0.1%
1999	30.07 years	-0.1%
2000	30.03 years	-0.1%
2001	30.02 years	-0.0%
2002	30 years	-0.1%
2003	29.98 years	-0.1%
2004	29.99 years	+0.1%
2005	30.01 years	+0.1%
2006	30 years	-0.0%
2007	30 years	-0.0%
2008	29.98 years	-0.0%
2009	29.96 years	-0.1%
2010	29.96 years	-0.0%
2011	29.96 years	-0.0%
2012	29.95 years	-0.0%
2013	29.93 years	-0.1%
2014	29.9 years	-0.1%
2015	29.87 years	-0.1%
2016	29.84 years	-0.1%
2017	29.79 years	-0.2%
2018	29.74 years	-0.2%
2019	29.69 years	-0.2%
2020	29.64 years	-0.2%
2021	29.59 years	-0.2%
2022	29.53 years	-0.2%
2023	29.47 years	-0.2%

Guinea-Bissau compared with similar countries

Guinea-Bissau's 29.47 years is above the median for low income countries, which is 29.09 years, 1.0× the median. (25 countries reporting)
Guinea-Bissau's 29.47 years is above the median for Sub-Saharan Africa, which is 28.9 years, 1.0× the median. (48 countries reporting)

Averages by decade

Decade	Average	Lowest	Highest	Years
1950s	30.12 years	30.12 years	30.12 years	10
1960s	30.13 years	30.12 years	30.13 years	10
1970s	30.13 years	30.13 years	30.14 years	10
1980s	30.15 years	30.14 years	30.15 years	10
1990s	30.13 years	30.07 years	30.19 years	10
2000s	30 years	29.96 years	30.03 years	10
2010s	29.86 years	29.69 years	29.96 years	10
2020s	29.55 years	29.47 years	29.64 years	4

Countries ranked near Guinea-Bissau

96 Haiti 29.56 years compare
97 Ghana 29.51 years compare
98 Serbia 29.5 years compare
100 Somalia 29.42 years compare
101 East Timor 29.41 years compare
102 American Samoa 29.38 years compare

See the full ranking of 236 places →

More reference data data for Guinea-Bissau

Emission Totals - Indirect emissions (N2O) - Manure applied to Soils 0.0583 (2050)
Emission Totals - Indirect emissions (N2O) - Manure left on Pasture 0.3098 (2050)
Emission Totals - Indirect emissions (N2O) - IPCC Agriculture 0.395 (2050)
Emission Totals - Indirect emissions (N2O) - Crop Residues 0.0269 (2050)
Emission Totals - Indirect emissions (N2O) - Agricultural Soils 0.395 (2050)
Emission Totals - Emissions (N2O) - Manure applied to Soils 0.1955 (2050)
Emission Totals - Emissions (N2O) - Manure Management 0.2346 (2050)
Emission Totals - Emissions (N2O) - Manure left on Pasture 1.56 (2050)
Emission Totals - Emissions (N2O) - IPCC Agriculture 2.15 (2050)
Emission Totals - Emissions (N2O) - Crop Residues 0.1466 (2050)

All data for Guinea-Bissau →

Frequently asked questions

What is average age of mothers at childbirth in Guinea-Bissau?: Average age of mothers at childbirth in Guinea-Bissau was 29.47 years in 2023, according to Human Fertility Database (2025); UN, World Population Prospects (2024) – processed by Our World in Data.
What is the highest average age of mothers at childbirth recorded in Guinea-Bissau?: The highest recorded value was 30.19 years in 1996.
What is the lowest average age of mothers at childbirth recorded in Guinea-Bissau?: The lowest recorded value was 29.47 years in 2023.
How does Guinea-Bissau rank for average age of mothers at childbirth?: Guinea-Bissau ranks 99th out of 236 countries with data for 2023.
Is average age of mothers at childbirth rising or falling in Guinea-Bissau?: Over the last ten years it is down 1.5%. The long-run trend across the full record is flat.
Where does this Guinea-Bissau data come from?: The figures come from Human Fertility Database (2025); UN, World Population Prospects (2024) – processed 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 Guinea-Bissau. Statizoid, drawing on Human Fertility Database (2025); UN, World Population Prospects (2024) – processed by Our World in Data. Retrieved 06 October 2026, from https://reference.statizoid.com/stat/period-average-age-of-mothers/guinea-bissau/

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About this data

Indicator: Average age of mothers at childbirth
Unit: years
Source: Human Fertility Database (2025); UN, World Population Prospects (2024) – processed 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: 18 September 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.