Guinea Population

Guinea has high fertility and a young, fast-growing population, with development held back by poverty and political instability despite considerable mineral wealth. Birth rates are falling only slowly, so the population continues to expand quickly. Building services to match that growth is a persistent struggle.

Guinea is home to about 15.3 million people in 2026, the 75th largest population of any country. In Western Africa, where it lies, that future is driven by fertility, longevity and the movement of people across its borders. It packs in roughly 63 people per square kilometre.

Growth continues for Guinea until around 2100, the year its population is set to crest at about 32.0 million. From there a slow fall takes it to roughly 32.0 million by century's end.

The median age is set to climb from about 18 today to roughly 35 by 2100, while life expectancy, near 61 years, keeps rising. For now it remains one of the world's youngest populations, with a large generation about to reach working age. An older population gradually reshapes the labour force, pension systems and healthcare demand.

Fertility is high, around 4.13 births per woman, the engine of rapid, sustained growth. Net outward migration also weighs on the total, with more people leaving than arriving.

Read these numbers as the midpoint of a range. Under the UN's high and low fertility paths Guinea's 2100 population could land well above or below the figures here; the medium variant is simply the central case.