Statizoid

Median age in Guinea-Bissau

Guinea-Bissau: Median age was 18.94 years in 2023. ▼ Falling

Latest (2023)
18.94 years
Change on year
up 1.1%
World rank
203rd
of 236 countries
All-time high
21.95 years
in 1960
All-time low
15.87 years
in 1988
Years of data
74
1950–2023

Median age in Guinea-Bissau, 1950–2023

05101520195019862023

Source: UN, World Population Prospects (2024) – processed by Our World in Data. Measured in years.

Analysis

Guinea-Bissau recorded 18.94 years for median age in 2023.

That represents a change of up 1.1% on the previous year and up 9.3% over ten years.

Over the whole period, median age in Guinea-Bissau peaked at 21.95 years in 1960 and was at its lowest, 15.87 years, in 1988.

Guinea-Bissau ranks 203rd of 236 countries on this measure, in the bottom quarter.

The long-run direction has been consistently falling across the 74 years of available data.

Median age in Guinea-Bissau, year by year

Year years Change
1950 20.4 years —
1951 20.5 years +0.5%
1952 20.66 years +0.8%
1953 20.84 years +0.8%
1954 21.02 years +0.9%
1955 21.2 years +0.9%
1956 21.37 years +0.8%
1957 21.54 years +0.8%
1958 21.69 years +0.7%
1959 21.83 years +0.6%
1960 21.95 years +0.5%
1961 21.89 years -0.3%
1962 21.62 years -1.2%
1963 21.27 years -1.6%
1964 20.59 years -3.2%
1965 19.66 years -4.5%
1966 18.89 years -3.9%
1967 18.52 years -1.9%
1968 18.44 years -0.4%
1969 18.2 years -1.3%
1970 18.01 years -1.0%
1971 17.85 years -0.9%
1972 17.7 years -0.9%
1973 17.73 years +0.2%
1974 17.76 years +0.1%
1975 17.67 years -0.5%
1976 17.44 years -1.3%
1977 17.09 years -2.0%
1978 16.67 years -2.4%
1979 16.55 years -0.8%
1980 16.58 years +0.2%
1981 16.47 years -0.7%
1982 16.34 years -0.8%
1983 16.2 years -0.8%
1984 16.08 years -0.8%
1985 15.97 years -0.6%
1986 15.91 years -0.4%
1987 15.87 years -0.2%
1988 15.87 years -0.0%
1989 15.88 years +0.1%
1990 15.92 years +0.2%
1991 15.96 years +0.3%
1992 15.99 years +0.2%
1993 16.03 years +0.2%
1994 16.07 years +0.2%
1995 16.09 years +0.1%
1996 16.11 years +0.1%
1997 16.14 years +0.2%
1998 16.19 years +0.3%
1999 16.24 years +0.3%
2000 16.31 years +0.4%
2001 16.4 years +0.5%
2002 16.48 years +0.5%
2003 16.57 years +0.5%
2004 16.65 years +0.5%
2005 16.72 years +0.5%
2006 16.8 years +0.4%
2007 16.87 years +0.4%
2008 16.94 years +0.4%
2009 17.01 years +0.4%
2010 17.08 years +0.4%
2011 17.16 years +0.5%
2012 17.25 years +0.5%
2013 17.34 years +0.5%
2014 17.44 years +0.6%
2015 17.56 years +0.7%
2016 17.69 years +0.8%
2017 17.84 years +0.9%
2018 18.01 years +0.9%
2019 18.19 years +1.0%
2020 18.36 years +1.0%
2021 18.54 years +1.0%
2022 18.73 years +1.0%
2023 18.94 years +1.1%

Guinea-Bissau compared with similar countries

  • Guinea-Bissau's 18.94 years is above the median for low income countries, which is 17.97 years, 1.1× the median. (25 countries reporting)
  • Guinea-Bissau's 18.94 years is above the median for Sub-Saharan Africa, which is 18.22 years, 1.0× the median. (48 countries reporting)

Averages by decade

DecadeAverage LowestHighest Years
1950s 21.11 years 20.4 years 21.83 years 10
1960s 20.1 years 18.2 years 21.95 years 10
1970s 17.45 years 16.55 years 18.01 years 10
1980s 16.12 years 15.87 years 16.58 years 10
1990s 16.07 years 15.92 years 16.24 years 10
2000s 16.67 years 16.31 years 17.01 years 10
2010s 17.56 years 17.08 years 18.19 years 10
2020s 18.64 years 18.36 years 18.94 years 4

Countries ranked near Guinea-Bissau

  1. 200 Sierra Leone 19.27 years compare
  2. 201 Senegal 19.13 years compare
  3. 202 Sao Tome and Principe 19.05 years compare
  4. 204 Madagascar 18.88 years compare
  5. 205 Ethiopia 18.73 years compare
  6. 206 Eritrea 18.65 years compare

See the full ranking of 236 places →

More reference data data for Guinea-Bissau

All data for Guinea-Bissau →

Frequently asked questions

What is median age in Guinea-Bissau?
Median age in Guinea-Bissau was 18.94 years in 2023, according to UN, World Population Prospects (2024) – processed by Our World in Data.
What is the highest median age recorded in Guinea-Bissau?
The highest recorded value was 21.95 years in 1960.
What is the lowest median age recorded in Guinea-Bissau?
The lowest recorded value was 15.87 years in 1988.
How does Guinea-Bissau rank for median age?
Guinea-Bissau ranks 203rd out of 236 countries with data for 2023.
Is median age rising or falling in Guinea-Bissau?
Over the last ten years it is up 9.3%. The long-run trend across the full record is falling.
Where does this Guinea-Bissau data come from?
The figures come from UN, World Population Prospects (2024) – processed by Our World in Data, published as part of Median age. Statizoid updates them automatically from the source API.

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Median age in Guinea-Bissau. Statizoid, drawing on UN, World Population Prospects (2024) – processed by Our World in Data. Retrieved 22 September 2026, from https://reference.statizoid.com/stat/median-age/guinea-bissau/

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About this data

Indicator
Median age
Unit
years
Source
UN, World Population Prospects (2024) – processed by Our World in Data
Licence
CC BY 4.0 (Our World in Data)
Coverage
236 places, 17,464 data points, 1950–2023
Last refreshed

Age that divides the population into two halves of equal size — half are younger and half are older.