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Guam Geography Profile

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LocationOceania, island in the North Pacific Ocean, about three-quarters of the way from Hawaii to the Philippines
Geographic coordinates13 28 N, 144 47 E
Map referencesOceania
Areatotal: 544 sq km

land: 544 sq km

water: 0 sq km
Area - comparativethree times the size of Washington, DC
Land boundariestotal: 0 km
Coastline125.5 km
Maritime claimsterritorial sea: 12 nm

exclusive economic zone: 200 nm
Climatetropical marine; generally warm and humid, moderated by northeast trade winds; dry season (January to June), rainy season (July to December); little seasonal temperature variation
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 south
Elevation extremeshighest point: Mount Lamlam 406 m

lowest point: Pacific Ocean 0 m
Natural resourcesaquatic wildlife (supporting tourism), fishing (largely undeveloped)
Land useagricultural land: 33.4% (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.)
Irrigated land2 sq km (2012)
Natural hazardsfrequent squalls during rainy season; relatively rare but potentially destructive typhoons (June to December)
Geography - notelargest and southernmost island in the Mariana Islands archipelago and the largest island in Micronesia; strategic location in western North Pacific Ocean

Source: CIA World Factbook
This page was last updated on September 18, 2021