Geography

Guam

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IndicatorValue
Total area540 km²World Bank WDI [2023]
Exclusive economic zone (EEZ)No authoritative open source found
Administrative divisions (ADM1)No authoritative open source found
LocationOceania, island in the North Pacific Ocean, about three-quarters of the way from Hawaii to the PhilippinesCIA World Factbook [2025] · 2026 archive
Coastline125.5 kmCIA World Factbook [2025] · 2026 archive
Land boundaries0 kmCIA World Factbook [2025] · 2026 archive
Bordering countriesNo authoritative open source found
Terrainvolcanic 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 southCIA World Factbook [2025] · 2026 archive
Climatetropical marine; generally warm and humid, moderated by northeast trade winds; dry season (January to June), rainy season (July to December); little seasonal temperature variationCIA World Factbook [2025] · 2026 archive
Natural resourcesaquatic wildlife (supporting tourism), fishing (largely undeveloped)CIA World Factbook [2025] · 2026 archive
Highest pointMount Lamlam 406 mCIA World Factbook [2025] · 2026 archive
Lowest pointPacific Ocean 0 mCIA World Factbook [2025] · 2026 archive
Mean elevationNo authoritative open source found
Area (comparative)three times the size of Washington, D.C.CIA World Factbook [2025] · 2026 archive
Natural hazardsfrequent squalls during rainy season; relatively rare but potentially destructive typhoons (June to December)CIA World Factbook [2025] · 2026 archive
Maritime claimsterritorial sea: 12 nm; exclusive economic zone: 200 nmCIA World Factbook [2025] · 2026 archive

Section metadata

Data year2025
EditionDatabook 2026
Coverage12/16
LicenseCC-BY
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Datasets on this page
  • World Bank WDI
    world_bank_wdi
    Edition: 2024
  • CIA World Factbook
    cia_factbook
    Edition: 2025
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About this data

Guam's geography on Databook compiles 12 indicators from 2 open datasets including World Bank WDI, CIA World Factbook. Key figures include total area (540 km²), location (Oceania, island in the North Pacific Ocean, about three-quarters of the way from Hawaii to the Philippines). Data is referenced to 2025. Every value carries its source and publication year, published under open licenses.