Guinea-Bissau: Population

Between 2000 and 2023, Guinea-Bissau's estimated population rose from 1.2 million to 2.2 million. That was an absolute change of 918.6 thousand and 74.4%.

The 2023 estimate is the fixed baseline for this WPP 2024 analysis. Under the UN Medium projection, the population is projected at 2.4 million in 2028, 2.6 million in 2033, and 3.1 million in 2043. From the estimate baseline through the 20-year horizon, it is projected to increase by 956.6 thousand (44.4%).

In the latest estimate year, births numbered 64.7 thousand and deaths 15.2 thousand. Natural change was 49.5 thousand, while net migration was -1.4 thousand. These values are reported as demographic components and are not an explanation of the policies or events behind the series.

Age structure is also projected to shift. People aged 65 or older represented 3.1% of the 2023 estimate and are projected at 4.7% in 2043. The share aged 0-14 changes from 39.2% to 31.4% over the same comparison.

Total fertility was estimated at 3.84 births per woman in 2023, compared with 5.79 in 2000. Under the Medium projection it reaches 2.77 in 2043. Birth totals are shown separately; fertility rates and the number of births do not measure the same thing.

Life expectancy at birth increased from 50.6 years in 2000 to 64.1 years in 2023. The latest infant mortality rate was 48.9 per 1,000 live births. Crude death rates are presented with age and longevity measures rather than interpreted alone.

With 2.2 million people, Guinea-Bissau ranked 148th of 237 WPP countries and areas by population in 2023. Its regional and peer comparisons use the same release, year, and country/area eligibility rules.