|Anthem: Fanohge Chamoru|
|Official languages||English and Chamorro|
|Ethnic groups||39% Chamorro, 26.3% Filipino, 11.3% Pacific, 6.9% White, 6.3% other Asian, 2.3% other, 9.8% Mixed|
|-||President||Barack Obama (D)|
|-||Governor||Eddie Calvo (R)|
|-||Lt. Governor||Ray Tenorio (R)|
|-||Total||541.3 km2 (190th)
209 sq mi
|-||2009 estimate||178,000 (181st)|
|GDP (PPP)||2000 estimate|
|-||Total||$2.5 billion (2005 est.)1 (167th)|
|-||Per capita||$15,000(2005 est.)1|
|Currency||United States dollar (
|Time zone||Chamorro Standard Time (UTC+10)|
|-||Summer (DST)||(no DST) (UTC)|
Guam, officially the Territory of Guam, is an island in the Western Pacific Ocean and is an organized, unincorporated territory of the United States. It is one of five U.S. territories with an established civilian government. The island's capital is Hagåtña (formerly Agana). Guam is the largest and southernmost of the Mariana Islands.
The Chamorros, Guam's indigenous inhabitants, first populated the island approximately 4,000 years ago.reference required The island has a long history of European colonialism beginning in 1668 with the arrival of Spanish settlers including Padre San Vitores, a Catholic missionary. The island was taken over from Spain by the United States during the Spanish American War in 1898. As the largest island in Micronesia and the only American-held island in the region before World War II, Guam was occupied by the Japanese between December 1941 and July 1944. Today, Guam's economy is mainly supported by tourism (primarily from Japan) and U.S. military bases.
- CIA Factbook: Guam
- World Population Prospects – Table A.1. UN Department of Economic and Social Affairs. Retrieved on 2009-07-21.
- "USDOI Office of Insular Affairs" U.S. Territories, Retrieved November 4, 2007.
- Rogers, Robert F. (1995). Destiny’s Landfall: A History of Guam. Honolulu: University of Hawaii Press. ISBN-13: 978-0824816780.