Guam is a small island in the western Pacific Ocean, and it is a territory of the United States.

Quick Scoop: Where is Guam?

  • Guam sits in the western Pacific Ocean, at the boundary of the Philippine Sea.
  • It is the southernmost and largest island of the Mariana Islands archipelago, in the broader Micronesia region.
  • On a world map, it lies roughly:
    • About 2,600 km (1,600 miles) east of Manila in the Philippines.
* About 9,300 km (5,800 miles) west of San Francisco in the United States.
  • Politically, Guam is an organized, unincorporated territory of the United States, and its capital city is Hagåtña.

Simple mental map

If you imagine a triangle in the Pacific:

  • One corner is Japan,
  • One corner is the Philippines,
  • One corner is Papua New Guinea,

Guam sits up in that triangle area, closer to the Philippines and part of the island chain that runs north–south (the Marianas).

Information gathered from public forums or data available on the internet and portrayed here.