๐Ÿ‡ธ๐Ÿ‡ฑ Sierra Leonevs๐Ÿ‡ฌ๐Ÿ‡ผ Guinea-Bissau

Total Population
8,996,749
2,297,814
Sierra Leone is 3.9ร— Guinea-Bissau
Median age
20.9 years
20.6 years
0.3 years apart
Elderly Population Percentage
3.33%
3.28%
0.1 percentage points apart
Growth Rate
2.01%
2.15%
0.14 percentage points apart

Age composition in 2026:

๐Ÿ‡ธ๐Ÿ‡ฑ Sierra Leone ๐Ÿ‡ฌ๐Ÿ‡ผ Guinea-Bissau
Sierra Leone Guinea-Bissau
Young Population 37.21%3,347,406 37.85%869,676
Working Age Population 59.46%5,349,766 58.87%1,352,783
Elderly Population 3.33%299,577 3.28%75,355

In 2026, the median age is 20.9 years in Sierra Leone and 20.6 years in Guinea-Bissau.Sierra Leone already reached Guinea-Bissauโ€™s current median age in 1952, about 74 years ahead in population aging.

The total population of Sierra Leone peaks in 2092 at 16,009,634.The total population of Guinea-Bissau is projected to keep growing until 2100, reaching 4,665,487.

By 2050, the dependency ratio of Sierra Leone will be 50.8%, and 5.50% of the population will be elderly.By 2050, the dependency ratio of Guinea-Bissau will be 53.3%, and 5.68% of the population will be elderly.

Sierra Leone Guinea-Bissau
Demographic dividend (dependency ratio below 50%) 2053โ€“2085 2065โ€“2073
Aging society (65+ reaches 7%) 2060 1 years later 2059
Aged society (65+ reaches 14%) 2092 2093 1 years later
Super-aged society (65+ reaches 20%) Not reached by 2100 Not reached by 2100