Guam

unincorporated organized territory of the US with local self-governmentIndependence none (territory of the US)

Guam as the 2021 edition of the CIA World Factbook published it: 144 fields, one of 36 editions from 1990 to 2025.

field in that editiontext changed from the edition beforenot in that editionthe open editionEach field below ends in its editions, 1990 to 2025. Point at a year above to follow it down.

CapitalHagatna (Agana), UTC+10
Position13 28 N, 144 47 E
Area544 sq km
LocationOceania, island in the North Pacific Ocean, about three-quarters of the way from Hawaii to the Philippines
Populationas each edition published it
168,801 people July 2021 est. · 141,039 in 1990
Population growth% a year
0.18% 2021 est. · 2.53% in 1993
Median ageyears
29.4 years 2020 est. · 25.2 yrs in 2003
Life expectancyyears at birth
77.25 years 2021 est. · 74.29 yrs in 1993
Fertility ratechildren per woman
2.81 children per woman 2021 est. · 3 in 1990
Infant mortalitydeaths per 1,000 live births
11.73 deaths per 1,000 live births 2021 est. · 12 in 1990
GDP per capitaeach edition's own dollars
$35,600 2016 est. · $14,000 in 1993
GDP real growth% a year
0.4% 2016 est. · 1.3% in 2013

Introduction

1 field

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 as it served as a refueling stop for ships between Mexico and the Philippines.

Spain formally colonized Guam in 1668. Spain’s brutal repression of 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 by 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 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.

Geography

Oceania, island in the North Pacific Ocean, about three-quarters of the way from Hawaii to the Philippines

17 fields

Land useshare of 544 sq km

arable land 1.9% (2018 est.)permanent crops 16.7% (2018 est.)permanent pasture 14.8% (2018 est.)forest 47.9% (2018 est.)other 18.7% (2018 est.)agricultural land 33.4% (2018 est.) in all · irrigated 2 sq km (2012)
Area
544sq km
land: 544 sq kmwater: 0 sq kmthree times the size of Washington, DC
Coastline
125.5km
territorial sea: 12 nmexclusive economic zone: 200 nm
Highest point
406m
Mount Lamlamlowest point: Pacific Ocean 0 m

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

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)

Population distribution

no large cities exist on the island, though 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

29 fields

Age structuremale left, female right · (2020 est.)

7,504
65 and over9.54%
8,577
9,079
55-6410.5%
8,610
31,880
25-5436.65%
29,871
14,522
15-2416.08%
12,572
23,748
0-1427.22%
22,122
MaleFemaleDependency ratios: total dependency ratio: 52.4 · youth dependency ratio: 36.4 · elderly dependency ratio: 16.1 · potential support ratio: 6.2 (2020 est.)
Population
168,801
(July 2021 est.)growth rate: 0.18% (2021 est.)

Per 1,000 population(2021 est.)

Birth
18.76Death
5.99Net migration
-10.98

Male · female

TotalMale · femaleLife expectancy years (2021 est.)77.25
74.81 · 79.85Infant mortality deaths/1,000 live births (2021 est.)11.73
11.75 · 11.72
TotalMale · femaleMedian age years (2020 est.)29.4
28.7 · 30.2Youth unemployment ages 15-24 (2011 est.)29.4%
29.7% · 28.9%
MaleFemale

Ethnic groups(2010 est.)

Chamorro 37.3%Filipino 26.3%White 7.1%Chuukese 7%Korean 2.2%other Pacific Islander 2%other Asian 2%Chinese 1.6%Palauan 1.6%Japanese 1.5%Pohnpeian 1.4%mixed 9.4%other 0.6% (2010 est.)

Religions(2020 est.)

Christian (predominantly Roman Catholic) 94.2%folk religions 1.5%Buddhist 1.1%other 1.6%unaffiliated 1.7% (2020 est.)
Urban population
95%of total population
(2021)rate of urbanization: 0.84% annual rate of change (2020-25 est.)Major urban areas - population: 147,000 HAGATNA (capital) (2018)
Improved sanitation
89.8%of population
(2015 est.)improved: urban: 89.8% of population (2015 est.)rural: 89.8% of population (2015 est.)unimproved: urban: 10.2% of population (2015 est.)rural: 10.2% of population (2015 est.)total: 10.2% of population (2015 est.)

Nationality

noun:
Guamanian(s) (US citizens)
adjective:
Guamanian

Languages

English 43.6%, Filipino 21.2%, Chamorro 17.8%, other Pacific island languages 10%, Asian languages 6.3%, other 1.1% (2010 est.)

Population distribution

no large cities exist on the island, though large villages (municipalities) attract much of the population; the largest of these is Dededo

Sex ratio

at birth:
1.07 male(s)/female
0-14 years:
1.07 male(s)/female
15-24 years:
1.16 male(s)/female
25-54 years:
1.07 male(s)/female
55-64 years:
1.05 male(s)/female
65 years and over:
0.87 male(s)/female
total population:
1.06 male(s)/female (2020 est.)

Total fertility rate

2.81 children born/woman (2021 est.)

Drinking water source

improved:
total: 100% of population
unimproved:
total: 0% of population (2017 est.)

Environment

7 fields

Land use(2018 est.)

arable land 1.9% (2018 est.)permanent crops 16.7% (2018 est.)permanent pasture 14.8% (2018 est.)forest 47.9% (2018 est.)other 18.7% (2018 est.)agricultural land 33.4% (2018 est.) in all

Environment - current issues

  • fresh water scarcity;
  • reef damage;
  • inadequate sewage treatment;
  • extermination of native bird populations by the rapid proliferation of the brown tree snake, an exotic, invasive species

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

Urbanization

urban population:
95% of total population (2021)
rate of urbanization:
0.84% annual rate of change (2020-25 est.)

Revenue from forest resources

forest revenues: 0% of GDP (2018 est.)

Revenue from coal

coal revenues: 0% of GDP (2018 est.)

Waste and recycling

municipal solid waste generated annually:
141,500 tons (2012 est.)
municipal solid waste recycled annually:
25,258 tons (2011 est.)
percent of municipal solid waste recycled:
17.9% (2011 est.)

Government

Unincorporated organized territory of the US with local self-government; President Joseph R. BIDEN Jr. (since 20 January 2021); Governor Lourdes LEON GUERRERO (since 7 January 2019)

21 fields

Guam Legislature, 15 seats, elected 3 November 2020one dot, one seat

Democratic Party 10Republican Party 5

Composition: men 5, women 10, percent of women 66.7%

Country name

conventional long form:
none
conventional short form:
Guam
local long form:
none
local short form:
Guahan
abbreviation:
GU
etymology:
the native Chamorro name for the island "Guahan" (meaning "we have" or "ours") was changed to Guam in the 1898 Treaty of Paris, whereby 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)
geographic coordinates:
13 28 N, 144 44 E
time difference:
UTC+10 (15 hours ahead of Washington, DC, during Standard Time)
etymology:
the name is derived from the Chamoru word "haga," meaning "blood", and may refer to the bloodlines of the various families that established the original settlement

Administrative divisions

none (territory of the US)

Independence

none (territory of the US)

National holiday

Discovery Day (or Magellan Day), first Monday in March (1521)

Constitution

history:
effective 1 July 1950 (Guam Act of 1950 serves as a constitution)
amendments:
amended many times, last in 2015

Citizenship

see United States

Suffrage

  • 18 years of age;
  • universal;
  • note - Guamanians are US citizens but do not vote in US presidential elections

Executive branch

chief of state:
President Joseph R. BIDEN Jr. (since 20 January 2021); Vice President Kamala D. HARRIS (since 20 January 2021)
head of government:
Governor Lourdes LEON GUERRERO (since 7 January 2019); Lieutenant Governor Josh TENORIO (since 7 January 2019)
cabinet:
Cabinet appointed by the governor with the consent of the Legislature
elections/appointments:
  • 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;
  • however, they may 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);
  • election last held on 6 November 2018 (next to be held in November 2022)
election results:
  • 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

Legislative branch

description:
unicameral Legislature of Guam or Liheslaturan Guahan (15 seats; members elected in a single countrywide constituency by simple majority vote to serve 2-year terms);
  • Guam directly elects 1 member by simple majority vote to serve a 2-year term as the delegate to the US House of Representatives;
  • note - 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
elections:
Guam Legislature - last held on 3 November 2020 (next to be held on 5 November 2022); delegate to the US House of Representatives - last held on 3 November 2020 with runoff on 17 November (next to be held on 5 November 2022)
election results:
  • Guam Legislature - percent of vote by party - NA;
  • seats by party - Democratic Party 10, Republican Party 5;
  • composition - men 5, women 10, percent of women 66.7%
; Guam delegate to the US House of Representatives - Democratic Party 1 (man)

Judicial branch

highest courts:
Supreme Court of Guam (consists of 3 justices); note - appeals beyond the Supreme Court of Guam are referred to the US Supreme Court
judge selection and term of office:
justices appointed by the governor and confirmed by the Guam legislature; justices appointed for life subject to retention election every 10 years
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)

Political parties and leaders

Democratic Party [Joaquin "Kin" PEREZ]; Republican Party [Jerry CRISOSTOMO]

International organization participation

AOSIS (observer), IOC, PIF (observer), SPC, UPU

Diplomatic representation in the US

none (territory of the US)

Diplomatic representation from the US

embassy: none (territory of the US)

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 or outrigger canoe with sail, and a palm tree with the word GUAM superimposed in bold red letters;
  • the proa is sailing in Agana Bay with the promontory of Punta Dos Amantes, near the capital, in the background;
  • the shape of the central emblem is that of a Chamorro sling stone, used as a weapon for defense or hunting;
  • blue represents the sea and red the blood shed in the struggle against oppression

note: the US flag is the national flag

National symbol(s)

coconut tree; national colors: deep blue, red

National anthem

name:
"Fanohge Chamoru" (Stand Ye Guamanians)
lyrics/music:
Ramon Manalisay SABLAN [English], Lagrimas UNTALAN [Chamoru]/Ramon Manalisay SABLAN

note: adopted 1919; the local anthem is also known as "Guam Hymn"; as a territory of the United States, "The Star-Spangled Banner," which generally follows the playing of "Stand Ye Guamanians," is official (see United States)

Economy

US national defense spending is the main driver of Guam’s economy, followed closely by tourism and other services.

30 fields
GDP, purchasing power parity
$5.793billion
(2016 est.) · $5.697 billion (2015 est.) · $5.531 billion (2014 est.)official exchange rate: $5.793 billion (2016 est.)
GDP per capita, PPP
$35,600
(2016 est.) · $35,200 (2015 est.) · $34,400 (2014 est.)
Real growth rate
0.4%
(2016 est.) · 0.5% (2015 est.) · 1.6% (2014 est.)industrial production growth: NA
Inflation, consumer prices
1%
(2017 est.) · 0% (2016 est.)

Trading partnersexports left, imports right

Singapore
33%
31%
South Korea
18%
27%
Hong Kong
9%
Japan
21%
18%
Taiwan
7%
Philippines
Malaysia
6%
Exports $1.124 billion (2016 est.)Imports $2.964 billion (2016 est.)(2019)

By end use% of GDP · (2016 est.)

Household consumption
56.2%Government consumption
55%Fixed capital
20.6%Exports
19.4%Imports
-51.2%
investment in inventories: NA (2016 est.)

Budget(2016 est.)

Revenues
1.24 billionExpenditures
1.299 billion

Economic overview

US national defense spending is the main driver of Guam’s economy, followed closely by tourism and other services. Guam serves as a forward US base for the Western Pacific and is home to thousands of American military personnel. Total federal spending (defense and non-defense) amounted to $1.988 billion in 2016, or 34.2 of Guam’s GDP. Of that total, federal grants and cover-over payments amounted to $3444.1 million in 2016, or 35.8% of Guam’s total revenues for the fiscal year.

In 2016, Guam’s economy grew 0.3%. Despite slow growth, Guam’s economy has been stable over the last decade. National defense spending cushions the island’s economy against fluctuations in tourism. Service exports, mainly spending by foreign tourists in Guam, amounted to over $1 billion for the first time in 2016, or 17.8% of GDP.

GDP - composition, by sector of origin

agriculture:
NA
industry:
NA
services:
58.4% (2015 est.)

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

73,210 (2016 est.) note: includes only the civilian labor force

Labor force - by occupation

agriculture:
0.3%
industry:
21.6%
services:
78.1% (2013 est.)

Unemployment rate

4.5% (2017 est.) · 3.9% (2016 est.)

Unemployment, youth ages 15-24

total:
29.4%
male:
29.7%
female:
28.9% (2011 est.)

Budget surplus (+) or deficit (-)

-1% (of GDP) (2016 est.)

Public debt

22.1% of GDP (2016 est.) · 32.1% of GDP (2013)

Taxes and other revenues

21.4% (of GDP) (2016 est.)

Fiscal year

1 October - 30 September

Exports

$1.124 billion (2016 est.) · $1.046 billion (2015 est.)

Exports - commodities

scrap iron, electric batteries, gas turbines, scrap copper, beauty products (2019)

Imports

$2.964 billion (2016 est.) · $3.054 billion (2015 est.)

Imports - commodities

refined petroleum, trunks/cases, cars, insulated wire, broadcasting equipment (2019)

Exchange rates

the US dollar is used

Energy

23 fields

Electrification% of population · (2020)

100%Total

Installed generating capacity, 560,000 kW(2016 est.)

Fossil fuels 94% of total installed capacity (2016 est.)Other renewable sources 6% of total installed capacity (2017 est.)Nuclear fuels 0% · Hydroelectric plants 0%
Electricity production
1.722 billion (2016 est.)Electricity consumption
1.601 billion (2016 est.)Refined petroleum imports
13,500 (2015 est.)Refined petroleum consumption
14,000 (2016 est.)

Crude oil - production

0 bbl/day (2018 est.)

Crude oil - exports

0 bbl/day (2015 est.)

Crude oil - imports

0 bbl/day (2015 est.)

Crude oil - proved reserves

0 bbl (1 January 2018 est.)

Natural gas - production

0 cu m (2017 est.)

Natural gas - consumption

0 cu m (2017 est.)

Natural gas - exports

0 cu m (2017 est.)

Natural gas - imports

0 cu m (2017 est.)

Natural gas - proved reserves

0 cu m (1 January 2014 est.)

Communications

7 fields

Per 100 inhabitants(2004–21 est.)

61.99Mobile cellular
80.51%Internet users, % of population
42.01Fixed lines
1.86Fixed broadband
Mobile cellular
98,000
(2004 est.)
Internet users
136,500
(2021 est.)
Fixed lines
68,000
(2018)
Fixed broadband
3,000
(2014) · country code .gu

Telecommunication systems

general assessment:
integrated with US facilities for direct dialing, including free use of 800 numbers (2020)
domestic:
  • three major companies provide both fixed-line and mobile services, as well as access to the Internet;
  • fixed-line 42 per 100 and 113 per 100 for mobile-cellular (2019)
international:
  • country code - 1-671;
  • major landing points for Atisa, HANTRU1, HK-G, JGA-N, JGA-S, PIPE-1, SEA-US, SxS, Tata TGN-Pacific, AJC, GOKI, AAG, AJC and Mariana-Guam Cable submarine cables between Asia, Australia, and the US (Guam is a transpacific communications hub for major carriers linking the US and Asia);
  • satellite earth stations - 2 Intelsat (Pacific Ocean) (2019)

note: the COVID-19 pandemic continues to have a significant impact on production and supply chains globally; since 2020, some aspects of the telecom sector have experienced downturn, particularly in mobile device production;

many network operators delayed upgrades to infrastructure; progress towards 5G implementation was postponed or slowed in some countries; consumer spending on telecom services and devices was affected by large-scale job losses and the consequent restriction on disposable incomes;

the crucial nature of telecom services as a tool for work and school from home became evident, and received some support from governments

Broadcast media

  • about a dozen TV channels, including digital channels;
  • multi-channel cable TV services are available;
  • roughly 20 radio stations

Transportation

7 fields

Airports by runway lengthpaved only

over 3,047 m
22,438 to 3,047 m
1914 to 1,523 m
1

Airports by runway lengthunpaved only

under 914 m
1

Airports

total: 5 (2013)

Roadways

total: 1,045 km (2008)

Merchant marine

total:
3
by type:
other 3 (2021)

Ports and terminals

major seaport(s): Apra Harbor

Military and Security

1 field

Military - note

defense is the responsibility of the US

Transnational Issues

1 field

Cite this entry

Central Intelligence Agency. “Guam.” The World Factbook 2021. Archived by The Factbook, thefactbook.org/guam/2021.