Least developed countries Population Pyramid 2025

Least developed countries
2025
Population: 1,215,537,740

Year

-5 -1   2025  +1 +5

Country

A B C D E F G H I J K L M N O P Q R S T U V W Y Z
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Least developed countries in 2025

As of 2025, Least developed countries counted 1,215,537,741 inhabitants. That is 26.3% more than in 2015, when the population stood at 962,708,547.

The median age was 20.6 years, and for every 100 people of working age (15–64) there were 66.5 children under 15 and 6.7 people aged 65 or over. The pyramid is expansive: its wide base of young cohorts reflects high fertility and a rapidly growing population.

Share of the population by age group, 1950–2100

Data source: United Nations World Population Prospects, 2024 revision (medium variant) — last updated July 2024.

Population
1,215,537,741
Median age
20.6
0-14 %
38.4%
65+ %
3.9%
Child dependency
66.5
Old-age dependency
6.7
Pyramid shape
Births per woman
Total fertility rate, 1960–2023
1234567
1960Replacement level (2.1)2023 · 3.96

In 2023 women in Least developed countries had on average 3.96 children, above the replacement level of 2.1.

Source: World Bank World Development Indicators, latest available year.

Life expectancy at birth
Years, 1960–2023
Total Women Men
304050607080
19602023 · 66.5

Life expectancy at birth was 66.5 years in 2023: 68.9 for women and 64.2 for men.

Source: World Bank World Development Indicators, latest available year.

People supported per 100 workers
Dependency ratios, 1950–2100
Children Older adults
22456890
19502100
Where immigrants come from (2024)

17,864,207 immigrants live in Least developed countries.

South Sudan2,983,086
Sudan1,969,726
D.R. Congo1,515,486
Myanmar1,249,963
Côte d'Ivoire878,536
Where emigrants live (2024)

55,053,157 people born in Least developed countries live in other countries.

Saudi Arabia6,100,861
Iran3,752,317
India3,111,262
Côte d'Ivoire2,653,043
United States of America2,530,746
Explore
Immigration statistics

Source: United Nations International Migrant Stock 2024.

What was the population of Least developed countries in 2025?
In 2025, Least developed countries's population was 1,215,537,741.
How old is the population of Least developed countries?
The median age in Least developed countries is 20.6 years — half the population is younger, half older.
How many children and older people live in Least developed countries?
In Least developed countries, 38.4% of people are under 15 and 3.9% are 65 or older.
What type of population pyramid does Least developed countries have?
Least developed countries has an expansive pyramid: a wide base of young cohorts reflecting high fertility and continued population growth.

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