Guinea-Bissau vs Madagascar: Median age

Guinea-Bissau

18.94 years

in 2023

Madagascar

18.88 years

in 2023

Guinea-Bissau rank

203rd

Madagascar rank

204th

Median age over time

Guinea-Bissau currently reports 18.94 years against 18.88 years in Madagascar, a difference of 0.066 years.

The two have swapped places 2 times across 74 shared years of data; in 1950 it was Guinea-Bissau ahead.

Globally, Guinea-Bissau ranks 203rd and Madagascar ranks 204th of 236 countries.

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: 06 August 2026

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