Countries & territories · neighbouring countries
Neighboring Countries of Guam
Guam has no land borders with any other country — it is surrounded by sea.
- Guam
- Neighbouring countries
Geography of Guam
Location
Oceania, island in the North Pacific Ocean, about three-quarters of the way from Hawaii to the Philippines
Area
544 km² — three times the size of Washington, D.C.
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
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
Highest and lowest points
Highest: Mount Lamlam 406 m. Lowest: Pacific Ocean 0 m.
Natural resources
Aquatic wildlife (supporting tourism), fishing (largely undeveloped)
Natural hazards
Frequent squalls during rainy season; relatively rare but potentially destructive typhoons (June to December)
Good to know
Largest and southernmost island in the Mariana Islands archipelago and the largest island in Micronesia; strategic location in western North Pacific Ocean
Frequently asked questions about the borders of Guam
How many countries border Guam?
Is Guam landlocked?
What is the highest point of Guam?
Borders and geography: CIA World Factbook (public domain).