Least developed countries Population Pyramid 2031

Least developed countries
2031
Population: 1,386,884,616

Year

-5 -1   2031  +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 2031

By 2031, the population of Least developed countries is expected to reach 1,386,884,617. Ten years before, in 2021, the projected population is 1,109,397,233 — 25.0% lower.

With a projected median age of 21.6 years, Least developed countries would have a youth dependency ratio of 62.5 and an old-age dependency ratio of 7.1 per 100 people of working age. 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
1,386,884,617
Median age
21.6
0-14 %
36.8%
65+ %
4.2%
Child dependency
62.5
Old-age dependency
7.1
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.

How many people are projected to live in Least developed countries in 2031?
Least developed countries is projected to have a population of 1,386,884,617 in 2031.
What is the median age in Least developed countries?
Least developed countries's median age is 21.6 years.
How many children and older people live in Least developed countries?
4.2% of Least developed countries's population is 65 or older, and 36.8% is under 15.
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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