Guam vs Saint Lucia

Saint Lucia is 13% larger than Guam.

GuamSaint LuciaGuam moved onto Saint Lucia · Equal-area projection
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0.88×
Guam is 0.88× the area of Saint Lucia. Put the other way, Saint Lucia is 1.13× the size of Guam.
GuamSaint Lucia
Size
AreaSaint Lucia: 1.13× the area544 km²617 km²#178 of 194
CoastlineCoast, no land borderCoast, no land border
Land neighbours00
People
PopulationSaint Lucia: 1.07× the population168,9992025180,149#177 of 194 · 2025
DensityGuam: 1.06× the density311 / km²292 / km²#29 of 194
Urban populationGuam: 3.24× the urban share94%202529%#172 of 192 · 2025
Fertility rateGuam: 1.98× the births per woman2.75 per woman20241.39 per woman#159 of 192 · 2024
Population growthGuam: 0.50 points higher+0.73%2025+0.23%#149 of 192 · 2025
Birth rateGuam: 1.54× the birth rate17.3 per 1,000202411.2 per 1,000#119 of 192 · 2024
Death rateSaint Lucia: 1.26× the death rate6.9 per 1,00020248.7 per 1,000#58 of 192 · 2024
Children under 15Guam: 8.7 points higher25.9%202517.2%#139 of 192 · 2025
People over 65Guam: 3.1 points higher13.1%202510.0%#78 of 192 · 2025
Net migrationSaint Lucia: 2.8 per 1,000 higher−2.9 per 1,0002025−0.1 per 1,000#78 of 192 · 2025
Refugees abroad—1.10 per 1,000#56 of 190 · 2025
Health & education
Life expectancyGuam: 4.6 years longer77.4 years202472.8 years#105 of 192 · 2024
Infant mortality—15.8 per 1,000 births#79 of 191 · 2024
Doctors—4.23 per 1,000#25 of 178 · 2020
University enrolment—15.0%#121 of 145 · 2023
Human Development Index—0.748#102 of 190 · 2023
Economy
GNI per capita—$13,410#71 of 185 · 2025
GDPGuam: 2.6× the economy$6.91B2022$2.66B2025
Income groupHigh incomeUpper-middle income
GDP per capita (PPP)—$28,674#71 of 184 · 2025
GDP growthGuam: 5.7 points higher+5.1%2022−0.6%#177 of 187 · 2025
Inflation—+2.0%#120 of 176 · 2025
UnemploymentSaint Lucia: 1.7× the unemployment5.6%20259.5%#36 of 178 · 2025
Extreme poverty—0.1%#126 of 149 · 2015
Income inequality (Gini)—43.7#21 of 149 · 2015
Jobs in agricultureSaint Lucia: 5.9 points higher1.6% of jobs20257.5% of jobs#120 of 178 · 2025
Jobs in industryGuam: 3.1 points higher19.3% of jobs202516.2% of jobs#127 of 178 · 2025
Jobs in servicesGuam: 2.9 points higher79.2% of jobs202576.3% of jobs#27 of 178 · 2025
Foreign investment—7.3% of GDP#24 of 184 · 2025
Exports7.9% of GDP2022—
Internet users—68%#123 of 184 · 2024
Mobile subscriptions—99 per 100#130 of 191 · 2022
Energy & environment
Forest areaGuam: 1.54× the forest share52% of land202434% of land#90 of 192 · 2023
CO₂ per person0.00 t a year20241.71 t a year#109 of 185 · 2024
Renewable energySaint Lucia: 3.0 points higher6.7%20229.7%#143 of 190 · 2022
Access to electricityThe same100.0%2024100.0%#1 of 192 · 2024
Air pollution (PM2.5)Saint Lucia: 2.97× the air pollution3.5 µg/m³202310.4 µg/m³#152 of 191 · 2023
Protected landSaint Lucia: 14.0 points higher4.2% of land202518.2% of land#92 of 191 · 2025
Arable landSaint Lucia: 2.6 points higher1.8% of land20244.4% of land#133 of 190 · 2024
Water stress—14.3%#76 of 176 · 2022
Precipitation—2,301 mm#21 of 180 · 2022
Governance & safety
Political stabilityGuam: 0.06 higher+1.192025+1.13#26 of 193 · 2025
Control of corruptionGuam: 0.69 higher+1.182025+0.49#62 of 193 · 2025
Homicide rateSaint Lucia: 9.07× the homicide rate4.3 per 100,000201939.0 per 100,000#8 of 146 · 2023
State
StatusTerritory of United States of AmericaIndependent state
GovernmentDependent territoryunincorporated organized territory of the US with local self-government; republican form of territorial government with separate executive, legislative, and judicial branchesConstitutional monarchyparliamentary democracy under a constitutional monarchy; a Commonwealth realm
CapitalAganaCastries
CurrencyUnited States dollar (USD)Eastern Caribbean dollar (XCD)
Official languagesEnglish, ChamorroEnglish
Traffic drivesOn the rightOn the left
Time zoneUTC+10UTC−4
Calling code+1 671+1 758
RegionMicronesia, OceaniaCaribbean, North America

Area: Wikidata. Population, income, health, economy, environment and governance: World Bank. Human Development Index: UNDP. Government: CIA World Factbook. Ranks among the 194 independent states. All sources

Why the map you grew up with disagrees

On a Mercator map, area grows with distance from the equator. Guam sits at about 13° N and is stretched to 1.06× its true area; Saint Lucia at 14° N is stretched to 1.06×. Here the two are distorted about the same amount, so Mercator gets this pair roughly right. The figure above uses the Equal Earth projection, where every square kilometre is drawn the same size.

Questions about this pair

Is Guam bigger than Saint Lucia?
No. Guam is 12% smaller than Saint Lucia. Guam covers 544 km² and Saint Lucia covers 617 km².
How many times does Guam fit into Saint Lucia?
About 1.1 times: Saint Lucia has 1.13× the area of Guam.
Why do Guam and Saint Lucia look different on Google Maps?
Web maps use the Mercator projection, which stretches area with distance from the equator. Guam is drawn about 1.06× its true area there and Saint Lucia about 1.06×. For this pair the distortion is similar, so Mercator gets the comparison roughly right. Kartavera uses Equal Earth, where every square kilometre is drawn the same size.
Which has more people, Guam or Saint Lucia?
Saint Lucia: 180,149 people against 168,999. Density: Guam 311 per km², Saint Lucia 292 per km².
Where do people live longer, Guam or Saint Lucia?
In Guam: life expectancy at birth is 77.4 years, against 72.8 — 4.6 years longer (World Bank, 2024).
What kind of government do Guam and Saint Lucia have?
By constitution, as the CIA World Factbook describes them — Guam: dependent territory; Saint Lucia: constitutional monarchy.