Capital Hagåtña (Agana)
Currency US dollar (USD)
Population 173,456 (July 2007 est.)
Country code +1-671
Time zone UTC+10

Guam is an island in the western Pacific Ocean, about three-quarters of the way from Hawaii to the Philippines. (Geographic coordinates: 13 28 N, 144 47 E)

It is the largest and southernmost island in the Mariana Islands archipelago. While Guam shares strong linguistic and cultural similarities with the remaining islands of the Mariana Islands archipelago, it is politically distinct: Guam is an unincorporated territory of the United States of America, while the remaining islands of the archipelago comprise the Commonwealth of the Northern Mariana Islands (CNMI). Guam and the CNMI are among thousands of islands in the Oceania subregion of Micronesia, which consists of the island nations of Belau (Palau), the Federated States of Micronesia (FSM), Kiribati (which has cultural affinities with Polynesia and Micronesia), the Marshall Islands, and several remote islands designated as the U.S.-administered islands of the Central Pacific.


Northern Region- The Northern Region of Guam is comprised of large swaths of land controlled by the U.S. Military (primarily Anderson Air Force Base) toward the northernmost end of the island, and the villages of Dededo and Yigo just south of the military base. Dededo is the by far largest village on Guam, with a population exceeding 50,000. The Northern Region also contains Ritidian Beach, one of the most isolated, beautiful beaches in Guam.

Central/Metropolitan Region- The Central Region holds the majority of Guam's villages and the island's international airport. A large number of shops, restaurants, and hotels are located in this area (primarily in the village of Tumon), and as such is the island's most visited area by tourists. It is also the region of the island most prone to heavy traffic congestion around rush hour.

Southern Region- Guam's Southern Region is mostly rural and picturesque. It is one of the most untouched and undeveloped areas on the island and the Chamorro culture is most preserved here. Cocos Island and the black sand beaches at Talofofo are popular places to visit in this region.


No true cities exist on Guam (if one uses the 50,000 person rule), but each village represents an individual jurisdiction, all of which have mayors and limited autonomy within the central government. The largest population concentration is in the northern and central parts of the island, since the south is fairly lightly populated (the northernmost part of the island, however, is mostly owned by the US military).

~120,000 of the island's population of ~160,000 live in the northern and central parts of the island (which includes the villages of Tumon, Hagåtña, Dededo, Barrigada, Tamuning and Agana Heights).

Guam's Capital, Hagåtña

Other destinations

Apra Harbor



Guam is thought to be inhabited by people since about 4000 BC, when it was discovered by Southeast Asians, the distant ancestors of the local Chamorro people. Owing to a lack of written records, not much is known about the early Chamorro society, but the latte stones — a type of structure dating from that period — dot the island (as well as others in the Marianas). It's not certain how a Neolithic people with no knowledge of metals ever cut these stones, but they were most likely used as supports for the houses of the privileged class. Similarities between the latte stones and some wooden structures in the Philippines and Indonesia have been pointed out, and more imaginative minds might even see resemblances with the moai of Easter Island far to the east.

The first European contact came in 1521, with the Portuguese explorer Ferdinand Magellan on his famed circumnavigation of the world, sponsored by Spain. Having no counterpart of the western concept of "ownership" in their culture, curious Chamorro canoed out to Magellan's ship, relieving it of whatever they could get their hands on. As a result, Magellan named the islands Islas de los Ladrones, "islands of the thieves."

Spain claimed the island officially in 1565 (as a compensation for Magellan's tools that got lost about half a century earlier?), and Christianity arrived soon after. Guam became one of the most favorable harbors in the trans-Pacific maritime routes, serving as a common port-of-call for the ocean-going galleons between Mexico and the Philippines, both major possessions of the global Spanish Empire then. It was around this time that the modern Chamorro culture started to take shape, when intermarriages between the locals, Filipinos, and the Spaniards were common.

Guam was ceded to the U.S. by Spain in 1898 after the Spanish-American War. Captured by Japan and its army in 1941, it was retaken by the U.S. after an occupation lasting three years, during which locals were often treated brutally as defeated enemies.

In 1950, Guam was elevated to the status of an organized territory, and all locals were granted American citizenship. In the 1960s, there was even briefly a discussion of forging all American possessions out in the Western Pacific (which included Guam, Northern Mariana Islands, as well as now-independent Palau, Micronesia, and Marshall Islands) into a full-fledged U.S. state centered in Guam, the largest and most populous island of all between Japan, New Zealand, the Philippines, and Hawaii. However, this proposal was quickly dismissed by the Guamese, mainly due to their mistrust of their Chamorro brethren on the Northern Marianas, who loyally served the Japanese during the occupation of Guam (Northern Marianas had been a Japanese possession between WWI and the end of WWII, hence the Chamorro of Guam and the Chamorro of the Northern Marianas were on the opposite sides).

As Guam is currently the westernmost point in the Pacific Ocean to fall within U.S. territory (so far west it's in the Eastern Hemisphere), the military installations on the island are some of the more strategically important U.S. bases in the Western Pacific.


The economy depends on U.S. military spending, tourism, and the export of fish and handicrafts. Total U.S. grants, wage payments, and procurement outlays amounted to $1 billion in 1998. Over the past 20 years, the tourist industry has grown rapidly, creating a construction boom for new hotels and the expansion of older ones. More than 1 million tourists visit Guam each year. The industry has recently suffered setbacks because of the continuing Japanese slowdown; the Japanese normally make up almost 90% of the tourists. However, Guam tourism is branching out to attract people from other Asian countries such as South Korea and China. Most food and industrial goods are imported. The possibility of a large military buildup has generated a lot of interest in increasing the tourist facilities on the island.


Guam enjoys a tropical marine climate: generally warm and humid, moderated by northeast trade winds. The dry season runs from January to June, the rainy season from July to December, though with little seasonal temperature variation. During the rains, squalls are common, though destructive typhoons are rare.

Get in

The entry requirements for Guam are largely the same as those for the U.S, and nationals of all countries not needing a visa to enter the U.S. do not need a visa to enter Guam, although they may require an ESTA travel authorization. Foreign citizens may enter Guam using one of three options: (1)- the U.S. Visa Waiver Program, (2)- the Guam/CNMI Visa Waiver Program or (3)- a valid U.S. visa. If you are using the Guam/CNMI Visa Waiver Program, you do not need to apply for a travel authorization prior to going. The Guam/CNMI Visa Waiver Program includes seven U.S.-VWP countries (Australia, Brunei, Japan, New Zealand, South Korea, Singapore and the UK) plus Hong Kong, Malaysia, Nauru, Papua New Guinea, Taiwan and Russia(from 15.01.2012). Foreign citizens using the U.S.-VWP may stay 90 days, while citizens using the Guam/CNMI-VWP may stay for 45 days. Citizens of non-VWP countries must apply for a U.S. visa at any U.S. embassy.

By plane

Won Pat Guam International Airport (GUM) is the only civilian gateway to the island.

The main airline servicing Guam is United Airlines, which offers non-stop service to Honolulu and Tokyo with onward connections from either airport to Los Angeles, Chicago, Denver, Houston, Newark, San Francisco, and Washington-Dulles. It also offers non-stop flights from Guam to most major cities in Japan, Palau, Manila and Cebu in the Philippines, and many of the Federated States of Micronesia.

All other service to Guam is through East Asia on Delta Air Lines, and JAL (both serving Tokyo, Osaka and Nagoya), Jeju Air (Seoul), Jin Air (Seoul), Korean Air (Seoul and Osaka), ANA (Osaka), China Airlines (Taipei), Eva Air (Taipei) and Philippine Airlines (Manila).

By boat

There is no regular ferry service to Guam, but cruise ships stop on various itineraries, generally as part of a Pacific crossing or world circumnavigation.

Get around

Marine Corps Drive/Route 1 in Tamuning, Guam

Driving is fairly simple and similar to the mainland US. The main route on the island is Marine Corps Drive/Guam Route 1 (Better known as Marine Drive). On main roads in Guam, expect congestion around rush hour; however, such delays, which rarely exceed 30 minutes, are not as bad as the traffic congestion experienced in larger cities stateside and around the world. Many people purchase vehicles described as "Guam Bombs" which are older vehicles that are great to get around in and affordable, though these are becoming less and less common as more people are buying newer cars.

Buses are available, through both private companies and the governmentally operated Guam Regional Transit Authority (GRTA). GRTA buses run island-wide, but are slow, difficult to navigate, and often unreliable. Limited operating hours means that you may wait 1+ hours for a GRTA bus, and connections to other bus lines may also incur equally long wait times. Private companies, however, operate their own trolley-style buses through the main tourist areas of Tumon (including all the major hotels) and loop through Micronesia Mall, K-Mart, Agana Mall, and Guam Premier Outlets.

Bicycling is most common in the Tumon tourist area, and, to a lesser extent, the length of the Hagåtña-Tamuning beachfront sidewalk. Bicycles are available for rent through most hotels and a number of local businesses. While bicycling is possible in other areas of the island, it is not common due to potholes, erratic driving, stray dogs, rainy weather, and hilly regions (in the southern part of the island). Due to these reasons, it is not recommended that one ride a bike outside of the Tumon and Hagåtña-Tamuning area unless they are experienced and skilled.

Walking is most common in the central business districts of Hagåtña and Tumon. Walking elsewhere around the island is uncommon due to heat, dangerous vehicular traffic, and the lack of sidewalks. Within villages, however, it is common to walk short distances between households, and to small villages stores, churches, mayoral offices, and other community meeting places.


English and Chamorro are the official languages of Guam. Persons employed in the tourist industry will typically have a working knowledge of Japanese.




There are many retail outlets in Guam, including DFS (Duty Free Shoppers) which operates several stores in hotels, a large "Galleria," and a store in the Guam Airport. Further, visitors to Guam will note some of the same shopping opportunities that exist in "the States." Although there is no Wal-Mart, there is a large K-Mart that does a very high volume of business. Indeed, visitors who are used to the voided cavernous K-Marts in the U.S. may be surprised to find that they can barely squeeze through the aisles of the Guam K-Mart.

The Tumon Bay area possesses many duty-free shopping outlets and boutiques catering to Japanese tourists. Among these are boutiques selling Bvlgari, Chanel, Cartier, Dior, Fendi, Ferragamo, Gucci, Hermes, Louis Vuitton, Rolex, and more.

For U.S. citizens, Guam offers greatly increased customs exemptions coupled with duty and tax free importation of goods. However, take care with the basic prices offered in stores. Much merchandise has been shipped a very great distance at no small cost.


Despite its small population Guam has a range of restaurants, including Ya Mon's Jamaican Grill (locally owned & soon-to-be franchised), Hard Rock Cafe, Tony Romas and Chili's are in a building next the Guam Premier Outlets. Major hotels and restaurants serve continental meals and ethnic dishes.

Fresh seafood is bountiful. Fresh fish, octopus, and crab are either grilled or baked with vegetables or fruit, sashimi, and in other ways unique to the Pacific.

Travelers who venture further will find Chamorro, Japanese, Korean, Thai, Vietnamese, Filipino, Chinese, Mexican, and European restaurants, each with its own distinct ambiance. Chamorro Village offers a great variety of choices for local chamorro food, especially Wednesday nights. Of course, American fast food chains, such as Wendy's, Burger King, McDonald's, Taco Bell, Long John Silvers, Pizza Hut, Winchells Donuts and Dominos are common.

Locals pride themselves in BBQ'ing and it is a frequent event in Guam. Families and friends often get together and for BBQs, so if you visit ask about BBQ's. It's a good chance you'll get invited!



The main tourist area is around Tumon Bay, which has a number of high-rise hotels and resorts similar to Waikiki Beach. Cheaper accommodations exist near the airport, especially around the village of Harmon. Be aware that Harmon hotels tend to be on the seedier side since Harmon is a mixed industrial/residential neighborhood. Many of the flights scheduled through Guam to other locations (especially in Asia) often require an overnight layover, so plan ahead. Some hotels offer airport pickup, as taxis can be quite expensive.


The University of Guam provides higher education opportunities for students on Guam, as well as providing higher education for much of Micronesia. The UOG is in Mangilao, on the central eastern side of Guam. Students can earn various undergraduate degrees and several programs offer degrees at the Masters level. Two of the better known Masters- level programs include the (1) Environmental Science Program, focusing on Agricultural sciences through the College of Agriculture and Life Sciences (CALS) and Hydrology and Water Resources through the Water and Environmental Research Institute of the Western Pacific (WERI); and (2) the Marine Laboratory, which focuses on Marine Biology and other environmental issues.


The largest employers are the government of Guam and United Airlines, followed by a large duty-free retail firm (DFS Guam), the U.S. Federal Government, the hotel industry and services sectors. Guam has two large military bases and several smaller military installations that employ many people. The only U.S. Air Force base is Andersen Air Force Base on the northern tip of the island. The U.S. Navy has a large naval station -- Naval Station Guam --located on the west-central part of the island near the village Agat.

Stay safe

Observe caution when engaged in water activities on Guam, as in any coastal area, as currents can be swift and unpredictable, depending on the season. During the rainy season (from about August until March), water can pool unevenly on road surfaces. Pooling of rain water can lead to flooding of roads in the southern half of Guam, which does not have sewer drainage built under the road surfaces. Furthermore, many roads are in disrepair and potholes are frequent, which can easily blow out tires. Violent crime is fairly low, but property crime tends to be high, so safeguard valuables in vehicles. Rental cars have stickers and can be targeted by thieves. Guam is in a major earthquake zone, and these occur every few years. That said, there have been few casualties to date.

Stay healthy

The civilian Guam Memorial Hospital is in Tamuning, in the Central Region. If you have access to military bases, there's a Naval Hospital.


The Chamorro people, also known as the Chamoro or Chamoru, are indigenous to Guam. They possess a culture that mixes Asian, Spanish, and American cultures, and in general the people are gregarious and welcoming to visitors. Observe common courtesies and tend to err on the modest side, especially with clothing. Other cultures found in Guam include those from the Philippines, Japan, China, Korea, and other countries.

The Chamorro population is predominantly but not exclusively Catholic, with Protestantism also popular. On Guam, rosaries take the place of large formal gatherings to remember those who have passed away, and such congregations can occur for up to 20 years after someone has passed.


Guam participates in the North American Numbering Plan and the area code is (671). Calls from North America into Guam, as well as those from Guam into North America should be dialed in the domestic format, while calls from elsewhere in the world into Guam should be prefixed by +1 671 prior to the 7-digit local number.

USPS considers Guam a domestic destination, assigning ZIP codes in the range of 969xx to the island. However, international mail to Guam, especially if sent from the Asia-Pacific area, is best addressed to Guam as the destination country (as opposed to USA) to avoid a long detour through North America, almost half the world away — literally.



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