Population Pyramids of the World from 1950 to 2100

Guam Population Pyramid 1955

Guam
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1955
Population: 64,078

Year

-5 -1   1955  +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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Summary

Guam in 1955

In 1955, Guam had a total population of 64,078 people. The median age was 23.7 years, and for every 100 people of working age (15–64) there were 52.3 children under 15 and 2.1 people aged 65 or over.

The broad-based, expansive shape of the pyramid points to high fertility and strong population growth.

Ranks #188 of 201 by population Ranks #54 of 201 by median age

Share of the population by age group, 1950–2100

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

Key indicators for Guam
Population
64,078
Median age
23.7
0-14 %
33.9%
65+ %
1.4%
Child dependency
52.3
Old-age dependency
2.1
Region
OCEANIA
Pyramid shape
Expansive
Population 2050
191,459
Population 2100
205,502
What is driving the change
Births per woman
Total fertility rate, 1960–2023
123456
1960Replacement level (2.1)2023 · 2.78

The fertility rate of Guam was 2.78 births per woman in 2023, above the 2.1 needed to replace each generation.

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

Life expectancy at birth
Years, 1960–2023
Total Women Men
5060708090
19602023 · 77.2

A child born there in 2023 could expect to live 77.2 years on average (81.4 years for girls, 73.4 for boys).

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

People supported per 100 workers
Dependency ratios, 1950–2100
Children Older adults
20406080
19502100
Migration to and from Guam
Where immigrants come from (2024)

77,104 immigrants live in Guam, 46.0% of the population.

Philippines32,415
United States of America20,469
Micronesia (Fed. States of)11,767
Puerto Rico4,367
Republic of Korea2,996
Where emigrants live (2024)

196 people born in Guam live in other countries.

Australia141
Micronesia (Fed. States of)38
Mexico10
Costa Rica7
Explore
Immigration statistics Origin of migrant stocks map

Source: United Nations International Migrant Stock 2024.

How Guam compares with its neighbours
Country Population Median age Relative size
Guam 64,078 23.7
Kiribati 42,041 20.4
Micronesia (Fed. States of) 36,974 18.4
Frequently asked questions about Guam's population
How many people lived in Guam in 1955?
In 1955, Guam's population was 64,078.
How old is the population of Guam?
The median age in Guam is 23.7 years — half the population is younger, half older.
What share of Guam's population is over 65 or under 15?
In Guam, 33.9% of people are under 15 and 1.4% are 65 or older.
What shape is Guam's population pyramid, and what does it mean?
Guam has an expansive pyramid: a wide base of young cohorts reflecting high fertility and continued population growth.

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