Guam (Chamorro: Guåhån ) is an unincorporated and organized territory of the United States in Micronesia in the western Pacific Ocean. It is the westernmost point and territory of the United States, along with the Northern Mariana Islands. The capital city of Guam is Hagåtña and the most populous city is Dededo. The inhabitants of Guam are called Guamanians, and they are American citizens by birth. Indigenous Guamanians are the Chamorros, who are related to other Austronesian natives to the west in the Philippines and Taiwan.
In 2016, 162,742 people resided on Guam. Guam has an area of 210 mi2 and a population density of 775 /mi2. In Oceania, it is the largest and southernmost of the Mariana Islands and the largest island in Micronesia. Among its municipalities, Mongmong-Toto-Maite has the highest population density at 3,691 /mi2, whereas Inarajan and Umatac have the lowest density at 119 /mi2. The highest point is Mount Lamlam at 1332 ft above sea level. Since the 1960s, the economy has been supported by two industries: tourism and the United States Armed Forces.