Guam

Constituent / territory of United States.

OceaniaCapital city: AganaCapital metro: DededoGovernor: Lou Leon Guerrero
2026 population
154K
Rank #199 globally
Area
544 km² (210 sq mi)
Metros tracked
1
100% of population in metros
Composite score
0.3
Rank #219 globally

population: 2020 census (1 Apr 2020) · indicators as of 2026-09-05 · 1 metros tracked

🗺️ Geography1 metro

Guam metro footprint, shaded by composite tier.

Loading map…
1 polygons

Hover for rank, click to open the metro page. Boundaries derived from Overture Maps administrative divisions; metros without source coverage are omitted.

🏙️ 1 tracked metro
1 metros
#2339Dededo★ Capital▲ Largest
0.3
🗂️ Municipalities

19 entries listed under Guam. Click any to see its metros and footprint.

19 total
📋 At a glance
Official languages
English, Chamorro
Legislature
Legislature of Guam
Demonym
Guamanian
Time zone
UTC+10:00
Driving side
Right
Calling code
+1671
Internet TLD
.gu
ISO 3166
GU
Established
1898
Highest point
Mount Lamlam (1,332 m (4,370 ft))
National anthem
Stand Ye Guamanians

Facts via Wikidata.

💹 Economy and developmentHigh income
GDP
$6.9B
World Bank · 2022
GDP per capita
$41.8k
World Bank · 2022
Life expectancy
77.4 yrs
World Bank · 2024
Median age
31.1 yrs
UN WPP · 2023
Urban population
94%
World Bank · 2025
Pop. growth
0.7%
World Bank · 2025
Pop. density
308/km²
World Bank · 2023
Foreign-born
50.2%
World Bank · 2024
Internet users
81%
World Bank · 2017
Renewable electricity
9%
Ember · 2024

Ranks are among sovereign countries with data; ★ marks a top-5% finish. Sources: World Bank Open Data and Our World in Data (UNDP, UN WPP, V-Dem, Global Carbon Budget, Ember, Energy Institute; CC BY 4.0). Each card credits its originating body. Renewable share is of electricity generation, not of primary energy. Each figure is the most recent year available.

🏛️ Leadership History1 leaders · click to expand

marks a leader associated with atrocities or defiance of law, systemic subversion of democratic institutions, or a criminal conviction. Convictions arising from political persecution, and annulled convictions, are excluded. denotes a monarch. These are editorial designations, applied per entry rather than derived automatically.

Lou Leon Guerrero✦ Current

2019Present

Governor

Democratic
👥 Population over time
Population 2023
167k
#192 in the world
Since 1800
28×
from 6k
Peak
2011
167k
Share of world
0.00%
0.00% in 1800
43k85k128k170k18001850190019502000
Guam · people, 1800–2023 · dashed to 2026 is projected

Our World in Data population (CC BY): UN WPP 2024 from 1950, Gapminder v7 1800-1949, HYDE 3.3 earlier; today's borders. Figures above are as of 2023, the last year that is estimated rather than forecast. The dashed tail to 2026 is a UN WPP medium-variant projection. It is drawn because the line should reach the present, and drawn differently because it has not happened yet: no rank, peak or share on this page uses it. Before 1950 the series is reconstruction rather than contemporaneous statistics, which is worth knowing when a country’s peak sits back there. The current population shown elsewhere on this page comes from the workbook and is unchanged by this. Note that people and share of world can move in opposite directions. A country can grow steadily and still become a smaller part of humanity, which is what happened to almost every rich country after 1960.

👥 To 2100

The UN’s probabilistic projection for Guam: the median with its 80% and 95% bands, the UN’s own high, low and zero-migration scenarios beside it. Not this site’s model; the site reads it and says what it implies.

Peak on the median
2090
207k on the UN median
2050
191k
95% band 135k to 261k
2100
206k
95% band 55k to 651k
2100 against 2025
1.22×
median falling from 2091
Deaths outnumber births
from 2098
on the UN medium path; migration decides the rest
171k342k512k683k1950197520002025205020752100

Tap or drag across the chart to read any year: the estimate to 2023, then the UN median, its bands and the scenarios.

estimateUN median80% and 95% bandshigh and low fertilityzero migration

What drives it

Births, deaths and net migration on the UN medium path, with fertility, life expectancy and median age, every decade from 1950.

1950
2k born · 409 died · -860 net migration
TFR 5.21 · life expectancy 59.6 · median age 22.0
1960
2k born · 421 died · -343 net migration
TFR 5.97 · life expectancy 62.9 · median age 20.2
1970
3k born · 448 died · -149 net migration
TFR 4.34 · life expectancy 65.8 · median age 19.5
1980
3k born · 468 died · +225 net migration
TFR 3.04 · life expectancy 70.7 · median age 21.3
1990
4k born · 586 died · -438 net migration
TFR 3.02 · life expectancy 73.5 · median age 24.1
2000
4k born · 727 died · -2k net migration
TFR 2.92 · life expectancy 74.9 · median age 26.4
2010
3k born · 864 died · -2k net migration
TFR 2.97 · life expectancy 76.1 · median age 28.0
2020
3k born · 1k died · -244 net migration
TFR 2.90 · life expectancy 75.5 · median age 30.8
Show all 16 decades
2030
3k born · 1k died · -389 net migration
TFR 2.55 · life expectancy 78.5 · median age 32.4
2040
3k born · 2k died · -338 net migration
TFR 2.31 · life expectancy 80.4 · median age 33.4
2050
3k born · 2k died · -277 net migration
TFR 2.15 · life expectancy 82.0 · median age 34.7
2060
3k born · 2k died · -292 net migration
TFR 2.05 · life expectancy 83.5 · median age 36.9
2070
2k born · 2k died · -240 net migration
TFR 1.97 · life expectancy 84.8 · median age 39.0
2080
2k born · 2k died · -156 net migration
TFR 1.91 · life expectancy 86.0 · median age 40.8
2090
2k born · 2k died · -193 net migration
TFR 1.87 · life expectancy 87.2 · median age 42.9
2100
2k born · 2k died · -176 net migration
TFR 1.84 · life expectancy 88.4 · median age 45.3

Every country to 2100 →

Source: United Nations, DESA, Population Division. World Population Prospects 2024. Licensed under CC BY 3.0 IGO. Estimates to 2023; projections 2024 to 2100, medium variant and probabilistic intervals. The UN revises every two years; this is the WPP 2024 revision.

🏆 National Teams

Guam on the international stage. Click a card for the full record.