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Population Review

Rank #78 by World Population

🇬🇺Guam

Guam has a population of 166,506, ranking #78 in the world. The capital is Agana. Located in East Asia & Pacific.

World Bank: High income

166,506

Population

#78

World Rank

77.2

Life Expectancy

-

GDP Per Capita

Guam, #78 by world population

Guam Population History (1960-2024)

The country of Guam had a population of 69,525 in 1960 and 167,777 in 2024, a 2.4× growth over 64 years. The peak was 167,777 in 2024. Average annual growth rate: 1.39%.

2024 · 168K19602024
Guam population, 1960–2024 · Source: U.S. Census Bureau — decennial census & Population Estimates

167,777

Population (2024)

69,525

Population (1960)

167,777

Peak (2024)

1.39%

Avg Annual Growth

YearPopulation
196069,525
196171,311
196273,192
196375,095
196477,008
196578,932
196680,844
196782,719
196884,563
196986,404
197088,365
197190,466
197292,619
197394,781
197496,939
197599,057
1976101,166
1977103,298
1978105,424
1979107,636
1980110,141
1981112,902
1982115,711
1983118,508
1984121,302
1985124,117
1986126,965
1987129,858
1988132,799
1989135,799
1990138,610
1991141,073
1992143,393
1993145,654
1994147,868
1995150,054
1996152,169
1997154,215
1998156,237
1999158,289
2000160,065
2001161,329
2002162,315
2003163,137
2004163,810
2005164,365
2006164,839
2007165,267
2008165,693
2009166,173
2010166,522
2011166,543
2012166,331
2013165,966
2014165,486
2015164,905
2016164,233
2017163,490
2018162,679
2019161,808
2020162,158
2021163,730
2022165,180
2023166,506
2024167,777

Demographics

Population166,506
Population Growth Rate0.80%
Urban Population94.1%
Fertility Rate2.78 births/woman
Life Expectancy77.2 years
Infant Mortality Rate-
Literacy Rate-

Economy & Trade

-

GDP Per Capita

5.3%

Unemployment Rate

High income

Income Level

328,000

Tourism Arrivals

Health & Education

Development & Connectivity

100.0%

Electricity Access

308.3

People per km2

-500

Net Migration

Environment

51.9%

Forest Area

Guam Climate

Guam has an average annual temperature of 26.9°C (80°F) and receives about 2218 mm of precipitation per year. The warmest month is June and the coldest is February. Figures are 1970–2000 climate normals.

26.9°C

Avg Temp

2218

Precip (mm/yr)

Jun

Hottest Month

Feb

Coldest Month

20°30°353mmJFMAMJJASOND
— Avg temp (°C)▮ Precipitation (mm)
Guam — monthly temperature & precipitation (1970–2000 normals) · Source: WorldClim 2.1
MonthAvg (°C/°F)Precip
January26° / 79°110 mm
February26° / 79°93 mm
March26° / 80°75 mm
April27° / 81°78 mm
May28° / 82°129 mm
June28° / 82°152 mm
July27° / 81°246 mm
August27° / 81°353 mm
September27° / 81°317 mm
October27° / 81°302 mm
November27° / 81°216 mm
December27° / 80°147 mm

1970–2000 normals from WorldClim 2.1 (~9 km grid). Precipitation can be less precise near mountains or coastlines, where rainfall varies sharply over short distances.

Best time to visit Guam

The most comfortable months to visit Guam are typically March, February and April, when temperatures are mildest and rainfall is relatively low. The hottest month is June (around 31°C high). The coldest is February (near 23°C low). August is usually the wettest month.

MarchFebruaryApril

Where to stay near Agana

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Top-rated places to stay near Agana

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Other Countries in East Asia & Pacific

American SamoaAustraliaBrunei DarussalamCambodiaChina

Compare Guam

vs American Samoavs Australiavs Brunei Darussalamvs Cambodia

Guam in global context

Guam is one of 212 countries tracked. See how it ranks globally, regional shares of world population, and projections to 2050 / 2100.

World Population 2026: Top 10 Countries, Regions & Trends →

Other related entities

American Samoa (47,521)Australia (26,659,922)Brunei Darussalam (458,949)Cambodia (17,423,880)China (1,410,710,000)All countries →

Country rankings

Populated Countries in the WorldCountries With Highest GDP Per CapitaCountries With Highest Life ExpectancyCountries With Highest Fertility RatesCountries With Highest Literacy RatesUrbanized Countries in the WorldFastest Growing Countries by PopulationCountries With Highest Infant MortalityCountries With Highest Income InequalityCountries With Most International TourismAll rankings →

Frequently Asked Questions

Guam has a population of 166,506, ranking #78 in the world. The annual population growth rate is 0.80%.

Life expectancy in Guam is 77.2 years.

GDP data for Guam is available from the World Bank Open Data portal.

94.1% of Guam's population lives in urban areas. The overall population density is 308.3 people per square kilometer.

Literacy data for Guam is available from the World Bank.

The most comfortable months to visit Guam are typically March, February and April, when temperatures are mildest and rainfall is relatively low, based on 1970–2000 climate normals.

Guam has an average annual temperature of 26.9°C and about 2218 mm of precipitation per year. The warmest month is typically June and the coldest is February.

Sources: World Bank Open Data

International data from the World Bank Open Data API. Population figures are latest available estimates. GDP per capita in current US dollars.

Guam is a country in East Asia & Pacific with a population of 166,506. The population is growing slowly, about 0.8% annually.

Life expectancy is high at 77.2 years, with a fertility rate of 2.8 births per woman, and 94.1% of the population lives in urban areas.

Source: World Bank Open Data, 2026.