Humanities › Geography Geography of the Territories of the United States Share Flipboard Email Print Futi Rock in the ocean near Fatumafuti on Tutuila Island, a part of American Samoa. Christopher Biggs / Getty Images Geography Country Information Basics Physical Geography Political Geography Population Key Figures & Milestones Maps Urban Geography By Amanda Briney Geography Expert M.A., Geography, California State University - East Bay B.A., English and Geography, California State University - Sacramento Amanda Briney, M.A., is a professional geographer. She holds a Certificate of Advanced Study in Geographic Information Systems (GIS) from California State University. our editorial process Amanda Briney Updated July 23, 2018 The United States is the world's third-largest country based on population and land area. It is divided into 50 states, but also claims 14 territories around the world. The definition of a territory, as it applies to those claimed by the United States, is any land that is administered by the United States but is not officially claimed by any of the 50 states or any other world nation. In this alphabetical list of the territories of the United States, land area and population (where applicable) appear courtesy of the CIA World Factbook. Area figures for islands do not include submerged land area. Population numbers are as of July 2017. (Due to the hurricanes in August 2017, the Puerto Rico and Virgin Islands populations may be different, because a large number of people fled to the mainland, though some may return.) 01 of 14 American Samoa Michael Runkel / robertharding/Getty Images Total area: 77 square miles (199 sq km) Population: 51,504 Nearly all 12 of the islands of American Samoa are volcanic in origin and have coral reefs around them. 02 of 14 Baker Island joann94024/Wikimedia Commons Total area: .81 square miles (2.1 sq km) Population: Uninhabited An unpopulated coral atoll, Baker Island is a U.S. National Wildlife Refuge and visited by more than a dozen varieties of birds as well as endangered and threatened sea turtles. 03 of 14 Guam Sergio Amiti/Getty Images Total area: 210 square miles (544 sq km) Population: 167,358 The largest island in Micronesia, Guam doesn't have large cities but does have some large villages on the island. 04 of 14 Howland Island Wikimedia / CC BY-SA 3.0 Total area: 1 square mile (2.6 sq km) Population: Uninhabited About halfway between Australia and Hawaii, the uninhabited Howland Island is mostly submerged. It receives scant rainfall and has constant wind and sun. 05 of 14 Jarvis Island Joann94024/Wikimedia Commons Total area: 1.9 square miles (5 sq km) Population: Uninhabited Jarvis island has the same climate as Howland Island, and neither have any naturally occurring freshwater. 06 of 14 Johnston Atoll SSgt. Val Gempis, USAF/Wikimedia Commons Total area: 1 square mile (2.6 sq km) Population: Uninhabited Previously a wildlife refuge, Johnston Atoll was a site of nuclear testing during the 1950s and 1960s and remains under the jurisdiction of the U.S. Air Force. Until 2000 it was a storage and disposal site for chemical weapons. 07 of 14 Kingman Reef Joann94024/Wikimedia Commons Total area: 0.004 square miles (0.01 sq km) Population: Uninhabited Kingman Reef, with 756 square miles (1,958 sq km) of submerged area, has abundant marine species and is a U.S. Natural Wildlife Reserve. Its deep lagoon served as a respite area for U.S. flying boats going from Hawaii to American Samoa in the 1930s. 08 of 14 Midway Islands Gaffney Rick/Getty Images Total area: 2.4 square miles (6.2 sq km) Population: There are no permanent inhabitants on the islands but caretakers periodically live there. The site of a major turning-point battle during World War II, Midway Islands are a National Wildlife Refuge and home to the largest colony of Laysan albatross in the world. 09 of 14 Navassa Island Design Pics Inc/Getty Images Total area: .19 square miles (5.4 sq km) Population: Uninhabited Results from US Geological Survey studies of the species on the island in 1998 and 1999 raised the number known living there from 150 to more than 650. As a result, it was made a U.S. National Wildlife Refuge. It is closed to the public. 10 of 14 Northern Mariana Islands Hoiseung Jung / EyeEm/Getty Images Total area: 181 square miles (469 sq km), according to the Commonwealth of the Northern Mariana Islands Population: 52,263 While visiting the Northern Mariana Islands northeast of Guam, you can go hiking, fishing, cliff jumping, or scuba diving—and can even examine a World War II shipwreck. 11 of 14 Palmyra Atoll USFWS - Pacific Region/Wikimedia Commons Total area: 1.5 square miles (3.9 sq km) Population: Uninhabited The Palmyra Atoll Research Consortium studies climate change, invasive species, coral reefs, and marine restoration. The atoll is owned and protected by the Nature Conservancy, which purchased it in 2000 from private owners. 12 of 14 Puerto Rico John and Tina Reid/Getty Images Total area: 3,151 square miles (8,959 sq km) Population: 3,351,827 Though Puerto Rico gets rain throughout the year, the wet season is May through October, with the start of hurricane season being August, also its wettest month. In addition to withstanding catastrophic hurricanes, measurable earthquakes (more than 1.5 in magnitude) occur nearby daily. 13 of 14 U.S. Virgin Islands Pola Damonte via Getty Images/Getty Images Total area: 134 square miles (346 sq km) Population: 107,268 Made up of three larger islands and 50 smaller ones, the U.S. Virgin Islands lie about 40 miles (64 km) east of Puerto Rico, next to the British Virgin Islands. 14 of 14 Wake Island KC-135_Stratotanker_boom.JPG/Wikimedia Commons Total area: 2.51 square miles (6.5 sq km) Population: 150 military and civilian contractors work on the base Prized for its strategic location as a refueling and stopover site, Wake Island was the site of a major battle during World War II and was held by the Japanese until its surrender at the end of the war.