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Flag of Guam

Guam

Australia Oceania · Hagatna (Agana) · unincorporated organized territory of the US with local self-government; republican form of territorial government with separate executive, legislative, and judicial branches

What Guam means for your money — the prices you pay, the tariffs in motion, and where U.S. policy could change both.

Map showing the location of Guam

170K

Population

$6.9B

GDP

U.S. exposure

Minimal direct economic exposure

Guam is not a significant U.S. goods-trade partner and has no tracked tariff actions. Policy changes here are unlikely to reach American prices directly.

Reference

The country itself

Australia Oceania · Geography, people, economy, and government — public-domain data from the CIA World Factbook.

Guam was settled by Austronesian people around 1500 B.C. These people became the indigenous Chamorro and were influenced by later migrations, including the Micronesians in the first millennium A.D., and island Southeast Asians around 900. Society was stratified, with higher classes living along the coast and lower classes living inland. Spanish explorer Ferdinand MAGELLAN was the first European to see Guam in 1521, and Spain claimed the island in 1565 because it served as a refueling stop for ships between Mexico and the Philippines. Spain formally colonized Guam in 1668. Spain’s brutal repression of the Chamorro, along with new diseases and intermittent warfare, reduced the indigenous population from more than 100,000 to less than 5,000 by the 1700s. Spain tried to repopulate the island by forcing people from nearby islands to settle on Guam and preventing them from escaping. Guam became a hub for whalers and traders in the western Pacific in the early 1800s. During the 1898 Spanish-American War, the US Navy occupied Guam and set up a military administration. The US Navy opposed local control of government despite repeated petitions from the Chamorro. Japan invaded Guam in 1941 and instituted a repressive regime. During the US recapture of Guam in 1944, the island’s two largest villages were destroyed. After World War II, political pressure from local Chamorro leaders led to Guam being established as an unincorporated organized US territory in 1950, with US citizenship granted to all Chamorro. In a referendum in 1982, more than 75% of voters chose closer relations with the US over independence, although no change in status was made because of disagreements on the future right of Chamorro self-determination. The US military holds about 29% of Guam’s land and stations several thousand troops on the island. The installations are some of the most strategically important US bases in the Pacific; they also constitute the island’s most important source of income and economic stability.

Regional map of Guam

Geography

Location
Oceania, island in the North Pacific Ocean, about three-quarters of the way from Hawaii to the Philippines
Area
544 sq km
Climate
tropical marine; generally warm and humid, moderated by northeast trade winds; dry season (January to June), rainy season (July to December); little seasonal temperature variation
Terrain
volcanic origin, surrounded by coral reefs; relatively flat coralline limestone plateau (source of most fresh water), with steep coastal cliffs and narrow coastal plains in north, low hills in center, mountains in south
Natural resources
aquatic wildlife (supporting tourism), fishing (largely undeveloped)
Coastline
125.5 km
Natural hazards
frequent squalls during rainy season; relatively rare but potentially destructive typhoons (June to December)

People & society

Population
169,532 (2024 est.)
Nationality
Guamanian(s) (US citizens)
Ethnic groups
Native Hawaiian and other Pacific Islander 46.1% (Chamorro 32.8%, Chuukese 6.7%, Palauan 1.4%, Pohnpeian 1.4%, Yapese 1%, other Native Hawaiian and other Pacific Islander 2.8%), Asian 35.5% (Filipino 29.1%, Korean 2.2%, Japanese 1.4%, Chinese (except Taiwanese) 1.3%, other Asian 1.5%), White 6.8%, African descent or African-American 0.9%, Indigenous 0.1%, other 0.6%, mixed 10% (2020 est.)
Languages
English 43.3%, Filipino 24.9%, Chamorro 16%, other Pacific Island languages 9.4%, Asian languages 6.5% (2020 est.)
Religions
Christian (predominantly Roman Catholic) 94.2%, folk religions 1.5%, Buddhist 1.1%, other 1.6%, unaffiliated 1.7% (2020 est.)
Median age
30.5 years (2025 est.)
Life expectancy at birth
78 years (2024 est.)

Economy

Economic overview
small Pacific island US territorial economy; upper income, tourism-based economy; hard-hit by COVID-19 disruptions; relaunched many industries via vaccination tourism; domestic economy relies on multiple military bases; environmentally fragile economy
Industries
national defense, tourism, construction, transshipment services, concrete products, printing and publishing, food processing, textiles
Agricultural products
fruits, copra, vegetables; eggs, pork, poultry, beef
Exports - partners
Taiwan 42%, Hong Kong 12%, Philippines 11%, Italy 8%, Australia 6% (2023)
Imports - partners
Singapore 52%, Japan 15%, Malaysia 6%, Taiwan 4%, Greece 4% (2023)

Government

Government type
unincorporated organized territory of the US with local self-government; republican form of territorial government with separate executive, legislative, and judicial branches
Capital
Hagatna (Agana)
Independence
none (territory of the US)
Constitution
effective 1 July 1950 (Guam Act of 1950 serves as a constitution)
Executive branch
President Donald J. TRUMP (since 20 January 2025)
Legislative branch
Legislature of Guam (Liheslaturan Guahan)

Full reference data

Every field, by section — CIA World Factbook. Open a topic to expand it.

Introduction
Background
Guam was settled by Austronesian people around 1500 B.C. These people became the indigenous Chamorro and were influenced by later migrations, including the Micronesians in the first millennium A.D., and island Southeast Asians around 900. Society was stratified, with higher classes living along the coast and lower classes living inland. Spanish explorer Ferdinand MAGELLAN was the first European to see Guam in 1521, and Spain claimed the island in 1565 because it served as a refueling stop for ships between Mexico and the Philippines. Spain formally colonized Guam in 1668. Spain’s brutal repression of the Chamorro, along with new diseases and intermittent warfare, reduced the indigenous population from more than 100,000 to less than 5,000 by the 1700s. Spain tried to repopulate the island by forcing people from nearby islands to settle on Guam and preventing them from escaping. Guam became a hub for whalers and traders in the western Pacific in the early 1800s. During the 1898 Spanish-American War, the US Navy occupied Guam and set up a military administration. The US Navy opposed local control of government despite repeated petitions from the Chamorro. Japan invaded Guam in 1941 and instituted a repressive regime. During the US recapture of Guam in 1944, the island’s two largest villages were destroyed. After World War II, political pressure from local Chamorro leaders led to Guam being established as an unincorporated organized US territory in 1950, with US citizenship granted to all Chamorro. In a referendum in 1982, more than 75% of voters chose closer relations with the US over independence, although no change in status was made because of disagreements on the future right of Chamorro self-determination. The US military holds about 29% of Guam’s land and stations several thousand troops on the island. The installations are some of the most strategically important US bases in the Pacific; they also constitute the island’s most important source of income and economic stability.
Travel Facts
Passport/Visa Requirements
A foreign national or alien entering the US is generally required to present a passport and valid visa issued by a US Consular Official, unless they are a citizen of a country eligible for the Visa Waiver Program (VWP), or are a lawful permanent resident of the US or a citizen of Canada. The VWP allows foreign nationals from certain countries to be admitted to the US under limited conditions and for a limited time without obtaining a visa. The foreign national must arrive on an approved carrier (if coming by air or sea), stay no more than 90 days (for pleasure, medical purposes, and/or business), and be able to prove they are not inadmissible. The foreign national is still required to have a passport. To obtain a list of VWP-eligible countries and VWP passport requirements, please visit https://www.dhs.gov/visa-waiver-program. Note: all travelers transiting the US are subject to US customs and/or immigration laws.
US Embassy/Consulate
N/A
Telephone Code
671
Local Emergency Phone
911 (USA)
Vaccinations
See WHO recommendations http://www.who.int/
Climate
Tropical marine; generally warm and humid, moderated by northeast trade winds; dry season (January to June), rainy season (July to December); little seasonal temperature variation
Currency (Code)
US $ (USD)
Electricity/Voltage/Plug Type(s)
110 V / 60 Hz / plug types(s): A, B
Major Languages
English, Filipino, Chamorro, other Pacific island languages, Asian languages
Major Religions
Christian (predominantly Roman Catholic) 94.2%, folk religions 1.5%, Buddhist 1.1%
Time Difference
UTC+10 (15 hours ahead of Washington, DC, during Standard Time)
Potable Water
Yes
International Driving Permit
Suggested for non-US citizens.
Road Driving Side
Right
Tourist Destinations
Chamorro Village; Guam Museum; Dulce Nombre de Maria Cathedral Basilica; Fort Apugan; Latte Stone Park; Ritidian Point; Two Lover's Point; War in the Pacific National Historic Park (includes Apaca Point)
Major Sports
Soccer, basketball, rugby
Cultural Practices
Respect for family, community, and elders are major components of traditional Chamorro culture. Island culture has also been heavily influenced by both Spanish and American customs. The latter are pervasive in government and the media. Korean, Micronesian, Filipino, Chinese and Japanese immigrants have also enriched Guam's culture.
Tipping Guidelines
Tipping is common practice in the same way as it is in the US.
Souvenirs
Marmar flower headbands, woven baskets, shell necklaces and beaded jewelry, sarongs, machetes with carved wooden handles, natural beauty products
Traditional Cuisine
Kelaguen — a seafood, fish, or meat dish served either as a main course, appetizer, or side dish; the ingredients are typically marinated in a combination of lemon juice, salt, and hot peppers and sometimes enriched with grated fresh coconut
CIA source last updated
Monday, June 20, 2022
Travel resources

Please visit the following links to find further information about your desired destination.

World Health Organization (WHO) - To learn what vaccines and health precautions to take while visiting your destination.

US State Dept Travel Information - Overall information about foreign travel for US citizens.

To obtain an international driving permit (IDP). Only two organizations in the US issue IDPs: American Automobile Association (AAA) and American Automobile Touring Alliance (AATA)

How to get help in an emergency? Contact the nearest US embassy or consulate, or call one of these numbers: from the US or Canada - 1-888-407-4747 or from Overseas - +1 202-501-4444

Page last updated: Monday, June 20, 2022

Geography
Location
Oceania, island in the North Pacific Ocean, about three-quarters of the way from Hawaii to the Philippines
Geographic coordinates
13 28 N, 144 47 E
Map references
Oceania
Area - total
544 sq km
Area - land
544 sq km
Area - water
0 sq km
Area - comparative
three times the size of Washington, D.C.
Land boundaries - total
0 km
Coastline
125.5 km
Maritime claims - territorial sea
12 nm
Maritime claims - exclusive economic zone
200 nm
Climate
tropical marine; generally warm and humid, moderated by northeast trade winds; dry season (January to June), rainy season (July to December); little seasonal temperature variation
Terrain
volcanic origin, surrounded by coral reefs; relatively flat coralline limestone plateau (source of most fresh water), with steep coastal cliffs and narrow coastal plains in north, low hills in center, mountains in south
Elevation - highest point
Mount Lamlam 406 m
Elevation - lowest point
Pacific Ocean 0 m
Natural resources
aquatic wildlife (supporting tourism), fishing (largely undeveloped)
Land use - agricultural land
29.6% (2023 est.)
Land use - agricultural land: arable land
arable land: 1.9% (2023 est.)
Land use - agricultural land: permanent crops
permanent crops: 13% (2023 est.)
Land use - agricultural land: permanent pasture
permanent pasture: 14.8% (2023 est.)
Land use - forest
52.4% (2023 est.)
Land use - other
18% (2023 est.)
Irrigated land
2 sq km (2012)
Population distribution
no large cities exist on the island; large villages (municipalities) attract much of the population; the largest of these is Dededo
Natural hazards
frequent squalls during rainy season; relatively rare but potentially destructive typhoons (June to December)
Geography - note
largest and southernmost island in the Mariana Islands archipelago and the largest island in Micronesia; strategic location in western North Pacific Ocean
People and Society
Population - total
169,532 (2024 est.)
Population - male
87,345
Population - female
82,187
Nationality - noun
Guamanian(s) (US citizens)
Nationality - adjective
Guamanian
Ethnic groups
Native Hawaiian and other Pacific Islander 46.1% (Chamorro 32.8%, Chuukese 6.7%, Palauan 1.4%, Pohnpeian 1.4%, Yapese 1%, other Native Hawaiian and other Pacific Islander 2.8%), Asian 35.5% (Filipino 29.1%, Korean 2.2%, Japanese 1.4%, Chinese (except Taiwanese) 1.3%, other Asian 1.5%), White 6.8%, African descent or African-American 0.9%, Indigenous 0.1%, other 0.6%, mixed 10% (2020 est.)
Languages
English 43.3%, Filipino 24.9%, Chamorro 16%, other Pacific Island languages 9.4%, Asian languages 6.5% (2020 est.)
Religions
Christian (predominantly Roman Catholic) 94.2%, folk religions 1.5%, Buddhist 1.1%, other 1.6%, unaffiliated 1.7% (2020 est.)
Age structure - 0-14 years
26.4% (male 23,139/female 21,632)
Age structure - 15-64 years
62.7% (male 55,591/female 50,741)
Age structure - 65 years and over
10.9% (2024 est.) (male 8,615/female 9,814)
Dependency ratios - total dependency ratio
59.4 (2024 est.)
Dependency ratios - youth dependency ratio
42.1 (2024 est.)
Dependency ratios - elderly dependency ratio
17.3 (2024 est.)
Dependency ratios - potential support ratio
5.8 (2024 est.)
Median age - total
30.5 years (2025 est.)
Median age - male
29.6 years
Median age - female
31.1 years
Population growth rate
0.08% (2025 est.)
Birth rate
17.9 births/1,000 population (2025 est.)
Death rate
6.18 deaths/1,000 population (2025 est.)
Net migration rate
-10.92 migrant(s)/1,000 population (2025 est.)
Population distribution
no large cities exist on the island; large villages (municipalities) attract much of the population; the largest of these is Dededo
Urbanization - urban population
95.2% of total population (2022)
Urbanization - rate of urbanization
0.84% annual rate of change (2020-25 est.)
Major urban areas - population
147,000 HAGATNA (capital) (2018)
Sex ratio - at birth
1.07 male(s)/female
Sex ratio - 0-14 years
1.07 male(s)/female
Sex ratio - 15-64 years
1.1 male(s)/female
Sex ratio - 65 years and over
0.88 male(s)/female
Sex ratio - total population
1.06 male(s)/female (2024 est.)
Infant mortality rate - total
10.7 deaths/1,000 live births (2025 est.)
Infant mortality rate - male
11 deaths/1,000 live births
Infant mortality rate - female
10.9 deaths/1,000 live births
Life expectancy at birth - total population
78 years (2024 est.)
Life expectancy at birth - male
75.6 years
Life expectancy at birth - female
80.5 years
Total fertility rate
2.7 children born/woman (2025 est.)
Gross reproduction rate
1.31 (2025 est.)
Drinking water source - improved: total
total: 99.7% of population (2022 est.)
Drinking water source - unimproved: total
total: 0.3% of population (2022 est.)
Sanitation facility access - improved: total
total: 99.2% of population (2022 est.)
Sanitation facility access - unimproved: total
total: 0.8% of population (2022 est.)
Currently married women (ages 15-49)
40.4% (2020 est.)
Government
Country name - conventional long form
none
Country name - conventional short form
Guam
Country name - local long form
none
Country name - local short form
Guahan
Country name - abbreviation
GU
Country name - etymology
the native Chamorro name for the island, Guahan (meaning "we have"), was changed to Guam in the 1898 Treaty of Paris, when Spain relinquished Guam, Cuba, Puerto Rico, and the Philippines to the US
Government type
unincorporated organized territory of the US with local self-government; republican form of territorial government with separate executive, legislative, and judicial branches
Dependency status
unincorporated, organized territory of the US, with policy relations between Guam and the Federal government under the jurisdiction of the Office of Insular Affairs, US Department of the Interior
Capital - name
Hagatna (Agana)
Capital - geographic coordinates
13 28 N, 144 44 E
Capital - time difference
UTC+10 (15 hours ahead of Washington, DC, during Standard Time)
Capital - etymology
the name Hagatna is derived from the Chamorro word haga , meaning "life's blood" and referring to the town's role as the center of government for the island
Legal system
common law modeled on US system; US federal laws apply
Constitution - history
effective 1 July 1950 (Guam Act of 1950 serves as a constitution)
Citizenship
see United States
Suffrage
18 years of age; universal
Suffrage - note
note: Guamanians are US citizens but do not vote in US presidential elections
Executive branch - chief of state
President Donald J. TRUMP (since 20 January 2025)
Executive branch - head of government
Governor Lourdes LEON GUERRERO (since 7 January 2019)
Executive branch - cabinet
Cabinet appointed by the governor with the consent of the Legislature
Executive branch - election/appointment process
president and vice president indirectly elected on the same ballot by an Electoral College of electors chosen from each state to serve a 4-year term (eligible for a second term); under the US Constitution, residents of unincorporated territories, such as Guam, do not vote in elections for US president and vice president, but they can vote in Democratic and Republican presidential primary elections; governor and lieutenant governor elected on the same ballot by absolute majority vote in 2 rounds, if needed, for a 4-year term (eligible for 2 consecutive terms)
Executive branch - most recent election date
gubernatorial: 8 November 2022
Executive branch - election results
2022: Lourdes LEON GUERRERO reelected governor; percent of vote - Lourdes LEON GUERRERO (Democratic Party) 55%, Felix CAMACHO (Republican Party) 44%; Josh TENORIO (Democratic Party) elected lieutenant governor 2018: Lourdes LEON GUERRERO elected governor; percent of vote - Lourdes LEON GUERRERO (Democratic Party) 50.7%, Ray TENORIO (Republican Party) 26.4%; Josh TENORIO (Democratic Party) elected lieutenant governor
Executive branch - expected date of next election
gubernatorial: 3 November 2026
Legislative branch - legislature name
Legislature of Guam (Liheslaturan Guahan)
Legislative branch - legislative structure
unicameral
Legislative branch - number of seats
15 (directly elected)
Legislative branch - electoral system
plurality/majority
Legislative branch - scope of elections
full renewal
Legislative branch - term in office
2 years
Legislative branch - most recent election date
11/8/2022
Legislative branch - parties elected and seats per party
Democratic Party (9); Republican Party (6)
Legislative branch - percentage of women in chamber
40%
Legislative branch - expected date of next election
November 2024
Legislative branch - note
note: Guam directly elects 1 member by simple majority vote to serve a 2-year term as delegate to the US House of Representatives; the delegate can vote when serving on a committee and when the House meets as the Committee of the Whole House, but not when legislation is submitted for a “full floor” House vote
Judicial branch - highest court(s)
Supreme Court of Guam (consists of 3 justices)
Judicial branch - judge selection and term of office
justices appointed by the governor and confirmed by the Guam legislature; justices appointed for life but subject to retention election every 10 years
Judicial branch - subordinate courts
Superior Court of Guam (includes several divisions); US Federal District Court for the District of Guam (a US territorial court; appeals beyond this court are heard before the US Court of Appeals for the Ninth Circuit)
Judicial branch - note
note: appeals beyond the Supreme Court of Guam are referred to the US Supreme Court
Political parties
Democratic Party Republican Party
Diplomatic representation in the US
none (territory of the US)
Diplomatic representation from the US - embassy
none (territory of the US)
International organization participation
AOSIS (observer), IOC, PIF (observer), SPC, UPU
Independence
none (territory of the US)
National holiday
Discovery Day (or Magellan Day), first Monday in March (1521)
Flag
description: territorial flag is dark blue with a narrow red border on all four sides; centered is a red-bordered, pointed, vertical ellipse containing a beach scene, a proa ( outrigger canoe with sail), and a palm tree; the word GUAM in red is centered in the ellipse; the proa is sailing in Agana Bay with the promontory of Puntan Dos Amantes in the background meaning: blue stands for the sea and red for the blood shed in the fight against oppression; the central emblem is shaped like a Chamorro sling stone (a weapon for defense or hunting)
Flag - note
note: the US flag is the national flag
National symbol(s)
coconut tree
National color(s)
deep blue, red
National anthem(s) - title
"The Star-Spangled Banner"
National anthem(s) - lyrics/music
Francis Scott KEY/John Stafford SMITH
National anthem(s) - history
official anthem, as a US territory; played before "Stand, Ye Guamanians"
Economy
Economic overview
small Pacific island US territorial economy; upper income, tourism-based economy; hard-hit by COVID-19 disruptions; relaunched many industries via vaccination tourism; domestic economy relies on multiple military bases; environmentally fragile economy
Real GDP growth rate - Real GDP growth rate 2022
5.1% (2022 est.)
Real GDP growth rate - Real GDP growth rate 2021
2.1% (2021 est.)
Real GDP growth rate - Real GDP growth rate 2020
-10.5% (2020 est.)
Real GDP growth rate - note
note: annual GDP % growth based on constant local currency
Real GDP per capita - Real GDP per capita 2016
$35,600 (2016 est.)
Real GDP per capita - Real GDP per capita 2015
$35,200 (2015 est.)
Real GDP per capita - Real GDP per capita 2014
$34,400 (2014 est.)
GDP (official exchange rate)
$6.91 billion (2022 est.)
GDP (official exchange rate) - note
note: data in current dollars at official exchange rate
Agricultural products
fruits, copra, vegetables; eggs, pork, poultry, beef
Industries
national defense, tourism, construction, transshipment services, concrete products, printing and publishing, food processing, textiles
Labor force
77,700 (2024 est.)
Labor force - note
note: number of people ages 15 or older who are employed or seeking work
Unemployment rate - Unemployment rate 2024
5.6% (2024 est.)
Unemployment rate - Unemployment rate 2023
5.4% (2023 est.)
Unemployment rate - Unemployment rate 2022
5.5% (2022 est.)
Unemployment rate - note
note: % of labor force seeking employment
Youth unemployment rate (ages 15-24) - total
13.7% (2024 est.)
Youth unemployment rate (ages 15-24) - male
13.3% (2024 est.)
Youth unemployment rate (ages 15-24) - female
14.1% (2024 est.)
Youth unemployment rate (ages 15-24) - note
note: % of labor force ages 15-24 seeking employment
Average household expenditures - on food
34.6% of household expenditures (2021 est.)
Average household expenditures - on alcohol and tobacco
1.3% of household expenditures (2021 est.)
Budget - revenues
$1.24 billion (2016 est.)
Budget - expenditures
$1.299 billion (2016 est.)
Public debt - Public debt 2013
32.1% of GDP (2013)
Exports - Exports 2022
$545 million (2022 est.)
Exports - Exports 2021
$193 million (2021 est.)
Exports - Exports 2020
$379 million (2020 est.)
Exports - note
note: GDP expenditure basis - exports of goods and services in current dollars
Exports - partners
Taiwan 42%, Hong Kong 12%, Philippines 11%, Italy 8%, Australia 6% (2023)
Exports - partners - note
note: top five export partners based on percentage share of exports
Exports - commodities
scrap iron, scrap copper, trunks and cases (2023)
Exports - commodities - note
note: top export commodities based on value in dollars over $500,000
Imports - Imports 2022
$4.421 billion (2022 est.)
Imports - Imports 2021
$3.662 billion (2021 est.)
Imports - Imports 2020
$3.388 billion (2020 est.)
Imports - note
note: GDP expenditure basis - imports of goods and services in current dollars
Imports - partners
Singapore 52%, Japan 15%, Malaysia 6%, Taiwan 4%, Greece 4% (2023)
Imports - partners - note
note: top five import partners based on percentage share of imports
Imports - commodities
refined petroleum, cars, trunks and cases, gas turbines, flavored water (2023)
Imports - commodities - note
note: top five import commodities based on value in dollars
Exchange rates
the US dollar is used
Energy
Electricity access - electrification - total population
100% (2022 est.)
Electricity - installed generating capacity
525,000 kW (2023 est.)
Electricity - consumption
1.715 billion kWh (2023 est.)
Electricity - transmission/distribution losses
90.023 million kWh (2023 est.)
Electricity generation sources - fossil fuels
92.1% of total installed capacity (2023 est.)
Electricity generation sources - solar
7.8% of total installed capacity (2023 est.)
Electricity generation sources - wind
0.1% of total installed capacity (2023 est.)
Petroleum - refined petroleum consumption
11,000 bbl/day (2023 est.)
Energy consumption per capita - Total energy consumption per capita 2019
150.555 million Btu/person (2019 est.)
Communications
Telephones - fixed lines - total subscriptions
70,000 (2021 est.)
Telephones - fixed lines - subscriptions per 100 inhabitants
43 (2022 est.)
Telephones - mobile cellular - total subscriptions
98,000 (2009 est.)
Telephones - mobile cellular - subscriptions per 100 inhabitants
62 (2009 est.)
Broadcast media
about a dozen TV channels, including digital; multi-channel cable TV services are available; roughly 20 radio stations
Internet country code
.gu
Internet users - percent of population
81% (2017 est.)
Broadband - fixed subscriptions - total
3,000 (2022 est.)
Broadband - fixed subscriptions - subscriptions per 100 inhabitants
2 (2022 est.)
Transportation
Civil aircraft registration country code prefix
N
Airports
3 (2025)
Heliports
2 (2025)
Merchant marine - total
3 (2023)
Merchant marine - by type
other 3
Ports - total ports
1 (2024)
Ports - large
0
Ports - medium
1
Ports - small
0
Ports - very small
0
Ports - ports with oil terminals
1
Ports - key ports
Apra Harbor
Military and Security
Military and security forces
Guam Police Department (GPD); Guam (US) National Guard
Military - note
the US military maintains thousands of active-duty uniformed personnel and several bases and installations on the island
Environment
Environmental issues
freshwater scarcity; reef damage; inadequate sewage treatment; rapid proliferation of the non-native brown tree snake
Climate
tropical marine; generally warm and humid, moderated by northeast trade winds; dry season (January to June), rainy season (July to December); little seasonal temperature variation
Land use - agricultural land
29.6% (2023 est.)
Land use - agricultural land: arable land
arable land: 1.9% (2023 est.)
Land use - agricultural land: permanent crops
permanent crops: 13% (2023 est.)
Land use - agricultural land: permanent pasture
permanent pasture: 14.8% (2023 est.)
Land use - forest
52.4% (2023 est.)
Land use - other
18% (2023 est.)
Urbanization - urban population
95.2% of total population (2022)
Urbanization - rate of urbanization
0.84% annual rate of change (2020-25 est.)
Carbon dioxide emissions - total emissions
1.819 million metric tonnes of CO2 (2023 est.)
Carbon dioxide emissions - from petroleum and other liquids
1.819 million metric tonnes of CO2 (2023 est.)
Waste and recycling - municipal solid waste generated annually
141,500 tons (2024 est.)
Waste and recycling - percent of municipal solid waste recycled
17.9% (2011 est.)