Territories of the United States are sub-national
administrative division
Administrative divisions (also administrative units, administrative regions, subnational entities, or constituent states, as well as many similar generic terms) are geographical areas into which a particular independent sovereign state is divi ...
s and
dependent territories overseen by the
federal government of the United States. The American territories differ from the
U.S. states and
Indian reservations in that they are not
sovereign entities. In contrast, each state has a sovereignty separate from that of the federal government and each federally recognized Native American tribe possesses limited
tribal sovereignty as a "dependent sovereign nation".
Territories are classified by
incorporation and whether they have an "organized" government established by an
organic act passed by the
Congress.
American territories are under American sovereignty and may be treated as part of the U.S. ''proper'' in some ways and not others (i.e., territories belong to, but are not considered part of the U.S.).
Unincorporated territories in particular are not considered to be integral parts of the U.S.,
and the
Constitution of the United States
The Constitution of the United States is the Supremacy Clause, supreme law of the United States, United States of America. It superseded the Articles of Confederation, the nation's first constitution, on March 4, 1789. Originally includi ...
applies only partially in those territories.
[ Harvard Law Review—U.S. Territories: Introduction. April 10, 2017. Retrieved July 2019.]
The U.S. administers three
territories in the
Caribbean Sea and eleven in the
Pacific Ocean
The Pacific Ocean is the largest and deepest of Earth's five Borders of the oceans, oceanic divisions. It extends from the Arctic Ocean in the north to the Southern Ocean, or, depending on the definition, to Antarctica in the south, and is ...
. Five territories (
American Samoa,
Guam, the
Northern Mariana Islands,
Puerto Rico, and the
United States Virgin Islands) are permanently inhabited, unincorporated territories; the other nine are small islands, atolls, and reefs with no native (or permanent) population. Of the nine, only one is classified as an incorporated territory (
Palmyra Atoll). Two additional territories (
Bajo Nuevo Bank and
Serranilla Bank) are claimed by the U.S. but administered by
Colombia.
Historically, territories were created to administer newly acquired land, and most eventually
attained statehood. The most recent territory to become a U.S. state was
Hawaii
Hawaii ( ; ) is an island U.S. state, state of the United States, in the Pacific Ocean about southwest of the U.S. mainland. One of the two Non-contiguous United States, non-contiguous U.S. states (along with Alaska), it is the only sta ...
on August 21, 1959.
Politically and economically, the territories are underdeveloped. Residents of the U.S. territories cannot vote in
United States presidential elections, and they have only
non-voting representation in the U.S. Congress.
According to 2012 data, territorial telecommunications and other infrastructure are generally inferior to that of the
continental U.S. and Hawaii. Poverty rates are higher in the territories than in the states.
Organized vs. unorganized territories
Definitions
Organized territories are lands under federal sovereignty (but not part of any state or the
federal district) that were given a measure of
self-governance by Congress through an
organic act subject to the Congress's
plenary powers under the
Territorial Clause of the Constitution's Article Four, section 3. The term ''unorganized'' historically had two applications. One application was to a newly acquired region not yet constituted as an
organized incorporated territory (e.g. the
Louisiana Purchase
The Louisiana Purchase () was the acquisition of the Louisiana (New France), territory of Louisiana by the United States from the French First Republic in 1803. This consisted of most of the land in the Mississippi River#Watershed, Mississipp ...
prior to the establishment of
Orleans Territory and the
District of Louisiana). The other was to a region that was previously part of an organized incorporated territory, but subsequently left "unorganized" after part of it had been organized and had achieved the requirements for statehood. (E.g., a large portion of
Missouri Territory became unorganized territory for several years after its southeastern section became the state of
Missouri.)
Historical practice
The
Kansas–Nebraska Act of 1854 created the
Kansas
Kansas ( ) is a landlocked U.S. state, state in the Midwestern United States, Midwestern region of the United States. It borders Nebraska to the north; Missouri to the east; Oklahoma to the south; and Colorado to the west. Kansas is named a ...
and
Nebraska
Nebraska ( ) is a landlocked U.S. state, state in the Midwestern United States, Midwestern region of the United States. It borders South Dakota to the north; Iowa to the east and Missouri to the southeast, both across the Missouri River; Ka ...
Territories, bringing organized government to the region once again. The creation of Kansas and Nebraska left the
Indian Territory as the only unorganized territory in the Great Plains. In 1858, the western part of the
Minnesota Territory became unorganized when it was not included in the new state of
Minnesota; this area was organized in 1861 as part of the
Dakota Territory. In 1890, the western half of the Indian Territory was organized as
Oklahoma Territory. The eastern half remained unorganized until 1907, when it was joined with Oklahoma Territory to form the
State of Oklahoma. Additionally, the
Department of Alaska was unorganized from its acquisition in 1867 from
Russia
Russia, or the Russian Federation, is a country spanning Eastern Europe and North Asia. It is the list of countries and dependencies by area, largest country in the world, and extends across Time in Russia, eleven time zones, sharing Borders ...
until organized as the
District of Alaska in 1884; it was organized as
Alaska Territory in 1912. Hawaii was also unorganized from the time of its
annexation by the U.S. in 1898 until organized as
Hawaii Territory in 1900.
Regions that have been
admitted as states under the
United States Constitution
The Constitution of the United States is the Supremacy Clause, supreme law of the United States, United States of America. It superseded the Articles of Confederation, the nation's first constitution, on March 4, 1789. Originally includi ...
in addition to the
original thirteen were, most often, prior to admission, territories or parts of territories of this kind. As the United States grew, the most populous parts of the organized territory would achieve statehood. Some territories existed only a short time before becoming states, while others remained territories for decades. The shortest-lived was
Alabama Territory at two years, while
New Mexico Territory and Hawaii Territory both lasted more than 50 years.
Of the 50 states, 31 were once part of an organized, incorporated U.S. territory. In addition to the original 13, six subsequent states never were:
Kentucky
Kentucky (, ), officially the Commonwealth of Kentucky, is a landlocked U.S. state, state in the Southeastern United States, Southeastern region of the United States. It borders Illinois, Indiana, and Ohio to the north, West Virginia to the ...
,
Maine
Maine ( ) is a U.S. state, state in the New England region of the United States, and the northeasternmost state in the Contiguous United States. It borders New Hampshire to the west, the Gulf of Maine to the southeast, and the Provinces and ...
, and
West Virginia
West Virginia is a mountainous U.S. state, state in the Southern United States, Southern and Mid-Atlantic (United States), Mid-Atlantic regions of the United States.The United States Census Bureau, Census Bureau and the Association of American ...
were each
separated from an existing state;
Texas and
Vermont were both
sovereign state
A sovereign state is a State (polity), state that has the highest authority over a territory. It is commonly understood that Sovereignty#Sovereignty and independence, a sovereign state is independent. When referring to a specific polity, the ter ...
s (''de facto'' sovereignty for Vermont, as the region was claimed by New York) when they entered the Union; and
California
California () is a U.S. state, state in the Western United States that lies on the West Coast of the United States, Pacific Coast. It borders Oregon to the north, Nevada and Arizona to the east, and shares Mexico–United States border, an ...
was part of
unorganized land
ceded to the United States by Mexico in 1848 at the end of the
Mexican–American War.
Federal administration of current territories
All of the five major U.S. territories are permanently inhabited and have locally elected territorial legislatures and executives and some degree of political
autonomy. Four of the five are organized but American Samoa is technically unorganized. All of the U.S. territories without permanent non-military populations are unorganized.
The
Office of Insular Affairs coordinates federal administration of the U.S. territories and freely associated states, except for Puerto Rico.
On March 3, 1849, the last day of the 30th Congress, a bill was passed to create the
U.S. Department of the Interior to take charge of the internal affairs of ''United States territory''. The Interior Department has a wide range of responsibilities (which include the regulation of territorial governments, the basic responsibilities for public lands, and other various duties).
In contrast to similarly named Departments in other countries, the United States Department of the Interior is not responsible for local government or for civil administration except in the cases of Indian reservations, through the
Bureau of Indian Affairs (BIA), and island dependencies administered by the Office of Insular Affairs.
Permanently inhabited territories
The U.S. has five permanently inhabited territories:
Puerto Rico and the
U.S. Virgin Islands in the
Caribbean Sea,
Guam and the
Northern Mariana Islands in the
North Pacific Ocean, and
American Samoa in the South Pacific Ocean. American Samoa is in the
Southern Hemisphere, while the other four are in the
Northern Hemisphere.
In 2020, their combined population was about 3.62 million, over 90% of which is accounted for by Puerto Rico alone.
People born in Puerto Rico, the U.S. Virgin Islands, Guam and the Northern Mariana Islands
acquire U.S. citizenship by birth, and foreign nationals residing there may apply for
U.S. citizenship by naturalization.
People born in American Samoa acquire U.S. nationality but not U.S. citizenship by birth if they do not have a U.S. citizen parent. U.S. nationals without U.S. citizenship may hold U.S. passports and reside in any part of the United States without restriction.
However, to become U.S. citizens they must apply for naturalization, like foreigners, and may only do so while residing in parts of the United States other than American Samoa.
Foreign nationals residing in American Samoa cannot apply for U.S. citizenship or U.S. nationality at all.
Each territory is self-governing
with three branches of government, including a locally elected governor and a territorial legislature.
Each territory elects a
non-voting member (a non-voting
resident commissioner in the case of Puerto Rico) to the
U.S. House of Representatives.
Although they cannot vote on the passage of legislation, they can introduce legislation, have floor privileges to address the house, be members of and vote in committees, are assigned offices and staff funding, and may nominate constituents from their territories to the
Army
An army, ground force or land force is an armed force that fights primarily on land. In the broadest sense, it is the land-based military branch, service branch or armed service of a nation or country. It may also include aviation assets by ...
,
Naval,
Air Force and
Merchant Marine academies.
As of the
119th Congress, the territories are represented by
Aumua Amata Radewagen (R) of American Samoa,
James Moylan (R) of Guam,
Kimberlyn King-Hinds (R) of Northern Mariana Islands,
Pablo Hernández Rivera (D-PPD) of Puerto Rico and
Stacey Plaskett (D) of U.S. Virgin Islands. The
District of Columbia's delegate is
Eleanor Holmes Norton (D); like the district, the territories have no vote in Congress and no representation in the
Senate.
Additionally, the
Cherokee Nation has delegate-elect
Kimberly Teehee, who has not been seated by Congress.
Every four years, U.S. political parties nominate presidential candidates at conventions which include delegates from the territories. U.S. citizens living in the territories can vote for presidential candidates in these primary elections but not in the general election.
The territorial capitals are
Pago Pago (American Samoa),
Hagåtña (Guam),
Saipan (Northern Mariana Islands),
San Juan (Puerto Rico) and
Charlotte Amalie (U.S. Virgin Islands).
Their governors are
Pula Nikolao Pula (
American Samoa),
Lou Leon Guerrero (
Guam),
Arnold Palacios (
Northern Mariana Islands),
Jenniffer González-Colón (
Puerto Rico) and
Albert Bryan Jr. (
U.S. Virgin Islands).
Among the inhabited territories,
Supplemental Security Income (SSI) is available only in the Northern Mariana Islands; however, in 2019 a U.S. judge ruled that the federal government's denial of SSI benefits to residents of Puerto Rico is unconstitutional. This ruling was later overturned by the
U.S. Supreme Court, allowing for the exclusion of territories from such programs. In the decision, the court explained that the exemption of island residents from most federal income taxes provides a "rational basis" for their exclusion from eligibility for SSI payments.
American Samoa is the only U.S. territory with its own immigration system (a system separate from the United States immigration system).
American Samoa also has a communal land system in which 90% of the land is communally owned; ownership is based on Samoan ancestry.
History
* American Samoa: territory since 1900; after the end of the
Second Samoan Civil War, the
Samoan Islands
The Samoan Islands () are an archipelago covering in the central Pacific Ocean, South Pacific, forming part of Polynesia and of the wider region of Oceania. Political geography, Administratively, the archipelago comprises all of the Samoa, Indep ...
were divided into two regions. The U.S. took control of the eastern half of the islands.
In 1900, the
Treaty of Cession of Tutuila took effect.
The
Manuʻa Islands became part of American Samoa in 1904, and
Swains Island became part of American Samoa in 1925.
Congress
ratified American Samoa's treaties in 1929.
For 51 years, the U.S. Navy controlled the territory.
American Samoa is locally self-governing under a constitution last revised in 1967.
The first elected governor of American Samoa was in 1977, and the first non-voting member of Congress was in 1981.
By
jus soli, people born in American Samoa are
U.S. nationals, but not U.S. citizens.
American Samoa is technically unorganized,
and its main island is
Tutuila.
* Guam: territory since 1899, acquired at the end of the
Spanish–American War.
Guam is the home of
Naval Base Guam and
Andersen Air Force Base. It was organized under the
Guam Organic Act of 1950, which granted U.S. citizenship to Guamanians and gave Guam a local government.
In 1968, the act was amended to permit the election of a governor.
* Northern Mariana Islands: A commonwealth since 1986,
the Northern Mariana Islands together with Guam were part of the
Spanish Empire until 1899 when the Northern Marianas were sold to the
German Empire
The German Empire (),; ; World Book, Inc. ''The World Book dictionary, Volume 1''. World Book, Inc., 2003. p. 572. States that Deutsches Reich translates as "German Realm" and was a former official name of Germany. also referred to as Imperia ...
after the Spanish–American War.
Beginning in 1919, they were administered by Japan as a
League of Nations
The League of Nations (LN or LoN; , SdN) was the first worldwide intergovernmental organisation whose principal mission was to maintain world peace. It was founded on 10 January 1920 by the Paris Peace Conference (1919–1920), Paris Peace ...
mandate until the islands were captured by the United States in the
Battle of Saipan and
Battle of Tinian (June–August 1944) and the surrender of
Aguiguan (September 1945) during
World War II
World War II or the Second World War (1 September 1939 – 2 September 1945) was a World war, global conflict between two coalitions: the Allies of World War II, Allies and the Axis powers. World War II by country, Nearly all of the wo ...
.
They became part of the
United Nations Trust Territory of the Pacific Islands (TTPI) in 1947, administered by the United States as U.N. trustee.
The other constituents of the TTPI were
Palau, the
Federated States of Micronesia and the
Marshall Islands. Following failed efforts in the 1950s and 1960s to reunify Guam and the Northern Marianas, a covenant to establish the Northern Mariana Islands as a commonwealth in political union with the United States was negotiated by representatives of both political bodies; it was approved by Northern Mariana Islands voters in 1975, and came into force on March 24, 1976.
In accordance with the covenant, the Northern Mariana Islands constitution partially took effect on January 9, 1978, and became fully effective on November 4, 1986.
In 1986, the Northern Mariana Islands formally left U.N. trusteeship.
The abbreviations "CNMI" and "NMI" are both used in the commonwealth. Most residents in the Northern Mariana Islands live on
Saipan, the main island.
* Puerto Rico: unincorporated territory since 1899;
Puerto Rico was acquired at the end of the Spanish–American War, and has been a U.S. commonwealth since 1952. Since 1917, Puerto Ricans have been granted U.S. citizenship. Puerto Rico was organized under the
Puerto Rico Federal Relations Act of 1950 (Public Law 600). In November 2008, a U.S. District Court judge ruled that a series of Congressional actions have had the cumulative effect of changing Puerto Rico's status from unincorporated to incorporated. The issue is proceeding through the courts, however, and the U.S. government still refers to Puerto Rico as unincorporated. A Puerto Rican attorney has called the island "semi-sovereign". Puerto Rico has a
statehood movement, whose goal is to make the territory the
51st state.
See also
Political status of Puerto Rico.
* U.S. Virgin Islands: purchased by the U.S. from
Denmark
Denmark is a Nordic countries, Nordic country in Northern Europe. It is the metropole and most populous constituent of the Kingdom of Denmark,, . also known as the Danish Realm, a constitutionally unitary state that includes the Autonomous a ...
in 1917 and organized under the
Revised Organic Act of the Virgin Islands in 1954. U.S. citizenship was granted in 1927. The main islands are
Saint Thomas,
Saint John and
Saint Croix.
Statistics
Except for Guam, the inhabited territories lost population in 2020. Although the territories have higher poverty rates than the mainland U.S., they have high
Human Development Indexes. Four of the five territories have another official language, in addition to English.
The territories do not have administrative
counties. The U.S. Census Bureau counts Puerto Rico's 78
municipalities, the U.S. Virgin Islands' three main islands, all of Guam, the Northern Mariana Islands' four municipalities, and American Samoa's
three districts and two atolls as county equivalents.
The Census Bureau also counts each of the
U.S. Minor Outlying Islands as county equivalents.
[ U.S. Census Bureau. Census Bureau Code Lists. American National Standards Institute (ANSI) Codes for States. Retrieved July 26, 2020.]
For statistical purposes, the U.S. Census Bureau has a defined area called the "Island Areas" which consists of American Samoa, Guam, the Northern Mariana Islands, and the U.S. Virgin Islands (every major territory except Puerto Rico).
The U.S. Census Bureau often treats Puerto Rico as its own entity or groups it with the states and D.C. (for example, Puerto Rico has a QuickFacts page just like the states and D.C.) Puerto Rico data is collected annually in
American Community Survey estimates (just like the states), but data for the other territories is collected only once every ten years.
Governments and legislatures

The five major inhabited territories contain the following governments and legislatures:
Political party status
The following is the political party status of the governments of the U.S. territories following completion of the
2024 United States elections. Instances where local and national party affiliation differs, the national affiliation is listed second. Guam and the U.S. Virgin Islands have
unicameral territorial legislatures.
Courts

Each of the five major territories has its own local court system:
*
High Court of American Samoa
*
Supreme Court of Guam
*
Supreme Court of the Northern Mariana Islands
*
Supreme Court of Puerto Rico
*
Supreme Court of the Virgin Islands
Of the five major territories, only Puerto Rico has an
Article III federal district court (i.e., equivalent to the courts in the fifty states); it became an Article III court in 1966.
This means that, unlike other U.S. territories, federal judges in Puerto Rico have life tenure.
Federal courts in Guam, the Northern Mariana Islands and the U.S. Virgin Islands are
Article IV territorial courts.
The following is a list of federal territorial courts, plus Puerto Rico's court:
*
District Court of Guam (
Ninth Circuit)
*
District Court for the Northern Mariana Islands (
Ninth Circuit)
*
District Court for the District of Puerto Rico (not a territorial court) (
First Circuit)
*
District Court of the Virgin Islands (
Third Circuit)
American Samoa does not have a federal territorial court, and so federal matters in American Samoa are sent to either the
District court of Hawaii or the
District court of the District of Columbia.
[ GAO (U.S. Government Accountability Office. AMERICAN SAMOA: Issues Associated with Some Federal Court Options. September 18, 2008. Retrieved July 2019.] American Samoa is the only permanently inhabited region of the United States with no federal court.
Demographics
While the U.S. mainland is majority non-Hispanic
White
White is the lightest color and is achromatic (having no chroma). It is the color of objects such as snow, chalk, and milk, and is the opposite of black. White objects fully (or almost fully) reflect and scatter all the visible wa ...
, this is not the case for the U.S. territories. In 2010, American Samoa's population was 92.6%
Pacific Islander
Pacific Islanders, Pasifika, Pasefika, Pacificans, or rarely Pacificers are the peoples of the list of islands in the Pacific Ocean, Pacific Islands. As an ethnic group, ethnic/race (human categorization), racial term, it is used to describe th ...
(including 88.9%
Samoan); Guam's population was 49.3% Pacific Islander (including 37.3%
Chamorro) and 32.2%
Asian (including 26.3%
Filipino); the population of the Northern Mariana Islands was 34.9% Pacific Islander and 49.9% Asian; and the population of the U.S. Virgin Islands was 76.0%
African American. In 2019, Puerto Rico's population was 98.9%
Hispanic or Latino, 67.4% white, and 0.8% non-Hispanic white.
Throughout the 2010s, the U.S. territories (overall) lost population. The combined population of the five inhabited territories was 4,100,594 in 2010,
and 3,569,284 in 2020.
The U.S. territories have
high religiosity rates—American Samoa has the highest religiosity rate in the United States (99.3% religious and 98.3% Christian).
Economies
The economies of the U.S. territories vary from Puerto Rico, which has a GDP of $104.989 billion in 2019, to American Samoa, which has a GDP of $636 million in 2018.
In 2018, Puerto Rico exported about $18 billion in goods, with the
Netherlands
, Terminology of the Low Countries, informally Holland, is a country in Northwestern Europe, with Caribbean Netherlands, overseas territories in the Caribbean. It is the largest of the four constituent countries of the Kingdom of the Nether ...
as the largest destination.
Guam's GDP shrank by 0.3% in 2018, the GDP of the Northern Mariana Islands shrank by 19.6% in 2018, Puerto Rico's GDP grew by 1.18% in 2019, and the U.S. Virgin Islands' GDP grew by 1.5% in 2018.
In 2017, American Samoa's GDP shrank by 5.8%, but then grew by 2.2% in 2018.
American Samoa has the
lowest per capita income in the United States—it has a per capita income comparable to that of
Botswana. In 2010, American Samoa's per capita income was $6,311.
As of 2010, the
Manuʻa District in American Samoa had a per capita income of $5,441, the lowest of any county or county-equivalent in the United States.
[ Geography set to "Manu'a District, American Samoa" or "American Samoa"] In 2018, Puerto Rico had a median household income of $20,166 (lower than the median household income of any state).
Also in 2018,
Comerío Municipality, Puerto Rico had a median household income of $12,812 (the
lowest median household income of any populated county or county-equivalent in the U.S.)
Guam has much higher incomes (Guam had a median household income of $48,274 in 2010.)
Minor Outlying Islands
The
United States Minor Outlying Islands
The United States Minor Outlying Islands is a statistical designation applying to the minor outlying islands and groups of islands that comprise eight United States insular areas in the Pacific Ocean (Baker Island, Howland Island, Jarvis Isla ...
are small uninhabited islands,
atolls, and reefs.
Baker Island,
Howland Island,
Jarvis Island,
Johnston Atoll,
Kingman Reef,
Midway Atoll,
Palmyra Atoll, and
Wake Island are in the
Pacific Ocean
The Pacific Ocean is the largest and deepest of Earth's five Borders of the oceans, oceanic divisions. It extends from the Arctic Ocean in the north to the Southern Ocean, or, depending on the definition, to Antarctica in the south, and is ...
while
Navassa Island is in the
Caribbean Sea. The additional claimed territories of
Bajo Nuevo Bank and
Serranilla Bank are also located in the Caribbean Sea. Palmyra Atoll (formally known as the United States Territory of Palmyra Island) is the only incorporated territory, a status it has maintained since Hawaii became a state in 1959.
All are uninhabited except for Midway Atoll, whose approximately 40 inhabitants (as of 2004) were employees of the
U.S. Fish and Wildlife Service and their services provider; Palmyra Atoll, whose population varies from four to 20
Nature Conservancy and Fish and Wildlife staff and researchers; and Wake Island, which has a population of about 100 military personnel and civilian employees.
The two-letter abbreviation for the islands collectively is "UM".
The status of several islands is disputed. Navassa Island is disputed by
Haiti,
[The World Factbook](_blank)
CIA World Factbook—Navassa Island. Retrieved July 4, 2019. Wake Island is disputed by the
Marshall Islands,
Swains Island (a part of
American Samoa) is disputed by
Tokelau,
and Bajo Nuevo Bank and Serranilla Bank are both administered by Colombia, whose claim is disputed by the U.S. and
Jamaica
Jamaica is an island country in the Caribbean Sea and the West Indies. At , it is the third-largest island—after Cuba and Hispaniola—of the Greater Antilles and the Caribbean. Jamaica lies about south of Cuba, west of Hispaniola (the is ...
.
Claimed territories
The following two territories are claimed by multiple countries (including the United States)
and are not included in
ISO 3166-2:UM. However, they are sometimes grouped with the U.S. Minor Outlying Islands. According to the GAO, "the United States conducts maritime law enforcement operations in and around Serranilla Bank and Bajo Nuevo
ankconsistent with U.S. sovereignty claims."
Incorporated vs. unincorporated territories

Pursuant to a series of Supreme Court rulings, Congress decides whether a territory is incorporated or unincorporated. The
U.S. Constitution applies to each incorporated territory (including its local government and inhabitants) as it applies to the local governments and residents of a state. The singular incorporated territory (also known as a ''Territory'', distinct from ''territory'') of the U.S., Palmyra Atoll, is an insular part of the U.S. (neither a part of one of the several States nor a Federal district), but is not a possession.
In unincorporated territories, "
fundamental rights apply as a matter of law, but other
constitutional rights are not available", raising concerns about how citizens in these territories can influence
politics in the United States. Selected constitutional provisions apply, depending on congressional acts and judicial rulings according to U.S. constitutional practice, local tradition, and law. As a result, these territories are often considered colonies of the United States.
All modern inhabited territories under the control of the federal government can be considered as part of the "United States" for purposes of law as defined in specific legislation. However, the judicial term "unincorporated" was coined to legitimize the late-19th-century territorial acquisitions without citizenship and their administration without constitutional protections temporarily until Congress made other provisions. The case law allowed Congress to impose discriminatory tax regimes with the effect of a protective tariff upon territorial regions which were not domestic states. In 2022, the United States Supreme Court in ''
United States v. Vaello Madero'' held that the territorial clause of the constitution allowed wide congressional latitude in mandating "reasonable" tax and benefit schemes in Puerto Rico and the other territories, which are different from the states, but did not address the incorporated/unincorporated distinction. In a concurrence with the court's overall ruling on the propriety of the differential tax structures, one of the justices opined that it was time to overrule the doctrine of unincorporated territories, as wrongly decided and founded in racism; the dissent agreed with this view.
Insular Cases
The
U.S. Supreme Court, in its 1901–1905
Insular Cases opinions, ruled that the Constitution extended (i.e., of its own force) to the continental territories. The Court also established the doctrine of territorial incorporation, in which the Constitution applies fully to incorporated territories (such as the then-territories of
Alaska
Alaska ( ) is a non-contiguous U.S. state on the northwest extremity of North America. Part of the Western United States region, it is one of the two non-contiguous U.S. states, alongside Hawaii. Alaska is also considered to be the north ...
and
Hawaii
Hawaii ( ; ) is an island U.S. state, state of the United States, in the Pacific Ocean about southwest of the U.S. mainland. One of the two Non-contiguous United States, non-contiguous U.S. states (along with Alaska), it is the only sta ...
) and partially in the unincorporated territories of
Guam,
Puerto Rico, and, at the time, the
Philippines
The Philippines, officially the Republic of the Philippines, is an Archipelagic state, archipelagic country in Southeast Asia. Located in the western Pacific Ocean, it consists of List of islands of the Philippines, 7,641 islands, with a tot ...
(which is no longer a U.S. territory).
In the 1901 Supreme Court case ''
Downes v. Bidwell'', the Court said that the U.S. Constitution did not fully apply in unincorporated territories because they were inhabited by "alien races".
The U.S. had no
unincorporated territories (also known as overseas possessions or insular areas) until 1856. Congress enacted the Guano Islands Act that year, authorizing the president to take possession of unclaimed islands to mine
guano. The U.S. has taken control of (and claimed rights on) many islands and atolls, especially in the Caribbean Sea and the Pacific Ocean, under this law; most have been abandoned. It also has acquired territories since 1856 under other circumstances, such as under the
Treaty of Paris (1898) which ended the Spanish–American War. The Supreme Court considered the constitutional position of these unincorporated territories in 1922 in ''
Balzac v. People of Porto Rico'', and said the following about a U.S. court in Puerto Rico:
In ''
Glidden Company v. Zdanok'', the Court cited ''Balzac'' and said about courts in unincorporated territories: "Upon like considerations, Article III has been viewed as inapplicable to courts created in unincorporated territories outside the mainland... and to the consular courts established by concessions from foreign countries".
The judiciary determined that incorporation involves express declaration or an implication strong enough to exclude any other view, raising questions about Puerto Rico's status.
In 1966, Congress made the
United States District Court for the District of Puerto Rico an
Article III district court. This (the only district court in a U.S. territory) sets Puerto Rico apart judicially from the other unincorporated territories, and U.S. district judge
Gustavo Gelpí has expressed the opinion that Puerto Rico is no longer unincorporated:
In ''Balzac'', the Court defined "implied":
On June 5, 2015, the
U.S. Court of Appeals for the District of Columbia ruled 3–0 in ''
Tuaua v. United States'' to deny
birthright citizenship to American Samoans, ruling that the guarantee of such citizenship to citizens in the Fourteenth Amendment does not apply to unincorporated U.S. territories. In 2016 the U.S. Supreme Court declined to review the appellate court's decision.
In 2018, the United States Court of Appeals for the 7th Circuit upheld the District Court decision in ''Segovia v. United States'', which ruled that former Illinois residents living in Puerto Rico, Guam, and the U.S. Virgin Islands did not qualify to cast overseas ballots according to their last registered address on the U.S. mainland. (Residents of the
Northern Marianas and
American Samoa, however, were still allowed to cast such ballots.) In October 2018, the U.S. Supreme Court declined to review the 7th Circuit's decision.
On June 15, 2021, the
United States Court of Appeals for the Tenth Circuit ruled 2–1 in ''
Fitisemanu v. United States'' to deny birthright citizenship to American Samoans and not to overrule the Insular Cases. The court cited Downes and ruled that "neither constitutional text nor Supreme Court precedent" demands that American Samoans should be given automatic birthright citizenship. The case was denied certiorari by the U.S. Supreme Court. On April 21, 2022, in the case ''United States v. Vaello Madero'',
Justice Gorsuch urged the Supreme Court to overrule the Insular Cases when possible as they "rest on a rotten foundation" and called the cases "shameful".
In analyzing the Insular Cases, Christina Duffy Ponsa (
Juris Doctor, Yale Law School, 1998; former law clerk for Justice
Stephen Breyer) wrote in ''The New York Times'': "To be an unincorporated territory is to be caught in limbo: although unquestionably subject to American sovereignty, they are considered part of the United States for certain purposes but not others. Whether they are part of the United States for purposes of the Citizenship Clause remains unresolved. "
Supreme Court decisions about current territories
The 2016 Supreme Court case ''
Puerto Rico v. Sanchez Valle'' ruled that territories do not have their own sovereignty.
That year, the Supreme Court declined to rule on a lower-court ruling in ''
Tuaua v. United States'' that American Samoans are not U.S. citizens at birth.
The Supreme Court ruled in 2022 in ''
United States v. Vaello-Madero'' that Congress is not required to extend all benefits to Puerto Ricans, and that the exclusion of Puerto Ricans from the Supplemental Security Income program was constitutional.
Supreme Court decisions about former territories
In ''Rassmussen v. U.S.'', the Supreme Court quoted from Article III of the 1867 treaty for the
purchase of Alaska:
The act of incorporation affects the people of the territory more than the territory itself by extending the
Privileges and Immunities Clause of the Constitution to them, such as its extension to Puerto Rico in 1947; however, Puerto Rico remains unincorporated.
Alaska Territory
''Rassmussen'' arose from a criminal conviction by a six-person jury in Alaska under federal law. The court held that Alaska had been incorporated into the U.S. in
the treaty of cession with Russia, and the congressional implication was strong enough to exclude any other view:
Concurring justice
Henry Brown agreed:
Florida Territory
In ''Dorr v. U.S.'', the court quoted Chief Justice
John Marshall from an earlier case:
In ''Downes v. Bidwell'', the court said: "The same construction was adhered to in the treaty with Spain for the purchase of Florida... the 6th article of which provided that the inhabitants should 'be incorporated into the Union of the United States, as soon as may be consistent with the principles of the Federal Constitution'."
Southwest Territory
Justice Brown first mentioned incorporation in ''Downes'':
Louisiana Territory
In ''Downes'', the court said:
Modern Puerto Rico
Scholars agreed as of 2009 in the ''Boston College Law Review'', "Regardless of how Puerto Rico looked in 1901 when the Insular Cases were decided, or in 1922, today, Puerto Rico seems to be the paradigm of an incorporated territory as modern jurisprudence understands that legal term of art". In November 2008, a district court judge ruled that a sequence of prior Congressional actions had the cumulative effect of changing Puerto Rico's status to incorporated. However, in 2022, the United States Supreme Court
held that the territorial clause of the U.S. constitution allows wide congressional latitude in mandating "reasonable" tax and benefit schemes in Puerto Rico and the other territories that are different from the states, but the Court did not address the incorporated/unincorporated distinction.
As a result, the ''status quo'' remains, so the U.S. government still defines the Commonwealth of Puerto Rico as a U.S. unincorporated territory.
Former unincorporated territories and administered areas
Former unincorporated territories
*
Swan Islands (1863–1972): claimed under the Guano Islands Act; sovereignty ceded to Honduras in a 1972 treaty.
*
Republic of Hawaii (1898–1900): became the
Territory of Hawaii after it was organized and incorporated by the
Hawaiian Organic Act on April 30, 1900.
*
Philippines
The Philippines, officially the Republic of the Philippines, is an Archipelagic state, archipelagic country in Southeast Asia. Located in the western Pacific Ocean, it consists of List of islands of the Philippines, 7,641 islands, with a tot ...
:
military government, 1898-1899;
insular government, 1899–1935;
commonwealth government, 1935–1942 and 1945–1946 (islands under
Japanese occupation, 1942–1945 and
puppet state, 1943–1945); granted independence on July 4, 1946, by the
Treaty of Manila.
Former U.S.-administered areas
*
Panama Canal (1903–1999):
Canal Zone abolished on October 1, 1979, after the signing of the
Torrijos–Carter Treaties in 1977. The U.S. retained a military base on the former Canal Zone until December 31, 1999, when joint U.S.-Panama control of the Panama Canal ended.
*
Corn Islands (1914–1971): leased for 99 years under the
Bryan–Chamorro Treaty, but returned to
Nicaragua
Nicaragua, officially the Republic of Nicaragua, is the geographically largest Sovereign state, country in Central America, comprising . With a population of 7,142,529 as of 2024, it is the third-most populous country in Central America aft ...
after the treaty was annulled in 1970.
*
Canton and Enderbury Islands (1939–1979):
condominium jointly administered by the United States and the United Kingdom.
*
Trust Territory of the Pacific Islands (1947–1994):
U.N. trust territory administered by the U.S.; included the
Marshall Islands, the
Federated States of Micronesia, and
Palau, which are
sovereign state
A sovereign state is a State (polity), state that has the highest authority over a territory. It is commonly understood that Sovereignty#Sovereignty and independence, a sovereign state is independent. When referring to a specific polity, the ter ...
s (that have entered into a
Compact of Free Association with the U.S.), along with the Commonwealth of the Northern Mariana Islands.
*
Nanpō Islands and
Marcus Island (1952–1968): returned to Japan by mutual agreement.
*
Ryukyu Islands and
Daitō Islands (
1952–1972): returned to Japan in an agreement.
Former U.S. military occupations
*
First occupation of Cuba (1898–1902): sovereignty over the island relinquished by Spain on April 11, 1899, when the
Treaty of Paris took effect. Cuban independence was recognized on May 20, 1902.
* Military occupation of the
Philippines
The Philippines, officially the Republic of the Philippines, is an Archipelagic state, archipelagic country in Southeast Asia. Located in the western Pacific Ocean, it consists of List of islands of the Philippines, 7,641 islands, with a tot ...
,
Puerto Rico, and
Guam during the
Spanish–American War (1898–1899): territories annexed on April 11, 1899, when the Treaty of Paris took effect.
*
Second occupation of Cuba (1906–1909)
*
United States occupation of Nicaragua (1912–1933)
*
United States occupation of Veracruz (1914)
*
United States occupation of Haiti (1915–1934)
*
United States occupation of the Dominican Republic (1916–1924)
*
Sugar Intervention on Cuba (1917–1922)
* Participation in the
Occupation of Austria-Hungary (1918–1919)
* Participation in the
Occupation of the Rhineland (1918–1921)
* Participation in the
Occupation of Constantinople (1918–1923)
* Occupation of
Greenland in World War II (1941–1945)
* Occupation of
Iceland in World War II (1941–1946):
military base retained until 2006.
*
Allied Military Government for Occupied Territories, in Allied-controlled sections of Italy from the July 1943
invasion of Sicily until the September armistice with Italy. AMGOT continued in newly liberated areas of Italy until the end of the war, and also existed in France.
* Occupation of
Clipperton Island in World War II (1944–1945): occupied territory, returned to France on October 23, 1945.
*
United States Army Military Government in Korea: occupation south of the
38th parallel from 1945 to 1948.
* American zones of
Allied-occupied Germany (1945–1949)
*
Occupation of Japan (1945–1952)
*
Nanpō Islands and
Marcus Island (1945–1952)
*
Ryukyu Islands and
Daitō Islands (
1945–
1952)
* American occupation zones in
Allied-occupied Austria and
Vienna
Vienna ( ; ; ) is the capital city, capital, List of largest cities in Austria, most populous city, and one of Federal states of Austria, nine federal states of Austria. It is Austria's primate city, with just over two million inhabitants. ...
(1945–1955)
* American occupation zone in
West Berlin (1945–1990)
*
Free Territory of Trieste (1947–1954): the U.S. co-administered a portion of the territory (between the
Kingdom of Italy and the former
Kingdom of Yugoslavia
The Kingdom of Yugoslavia was a country in Southeast Europe, Southeast and Central Europe that existed from 1918 until 1941. From 1918 to 1929, it was officially called the Kingdom of Serbs, Croats, and Slovenes, but the term "Yugoslavia" () h ...
) with the United Kingdom.
*
Operation Power Pack, Dominican Republic (1965–66)
*
Grenada invasion and occupation (1983)
*
Panama invasion and occupation (1989–1990)
*
Operation Uphold Democracy, Haiti (1994–1995)
*
Coalition Provisional Authority, Iraq (2003–2004)
*
Green Zone, Iraq (March 20, 2003December 31, 2008)
Flora and fauna
The territories of the United States have many plant and animal species found nowhere else in the United States. All U.S. territories have tropical climates and ecosystems.
Forests

The USDA says the following about the U.S. territories (plus Hawaii):
Forests in the U.S. territories are vulnerable to
invasive species and new housing developments.
El Yunque National Forest in Puerto Rico is the only
tropical rain forest in the
United States National Forest system.
American Samoa has 80.84% forest cover and the
Northern Mariana Islands has 80.37% forest cover—these are among the
highest forest cover percentages in the United States (only
Maine
Maine ( ) is a U.S. state, state in the New England region of the United States, and the northeasternmost state in the Contiguous United States. It borders New Hampshire to the west, the Gulf of Maine to the southeast, and the Provinces and ...
and
New Hampshire are higher).
Birds
U.S. territories have many bird species that are
endemic (not found in any other location).
Introduction of the invasive
brown tree snake has harmed Guam's native bird population—nine of twelve endemic species have become extinct, and the territorial bird (the
Guam rail) is extinct in the wild.
Puerto Rico has several endemic bird species, such as the critically endangered
Puerto Rican parrot, the
Puerto Rican flycatcher, and the
Puerto Rican spindalis. The Northern Mariana Islands has the
Mariana swiftlet,
Mariana crow,
Tinian monarch and
golden white-eye (all endemic). Birds found in
American Samoa include the
many-colored fruit dove, the
blue-crowned lorikeet, and the
Samoan starling.
The
Wake Island rail (now extinct) was endemic to
Wake Island, and the
Laysan duck is endemic to
Midway Atoll and the
Northwest Hawaiian Islands.
Palmyra Atoll has the second-largest red-footed booby colony in the world, and
Midway Atoll has the largest breeding colony of
Laysan albatross in the world.
The
American Birding Association currently excludes the U.S. territories from their "ABA Area" checklist.
Other animals
American Samoa has several reptile species, such as the
Pacific boa (on the island of
Ta‘ū) and
Pacific slender-toed gecko. American Samoa has only a few mammal species, such as the
Pacific (Polynesian) sheath-tailed bat, as well as oceanic mammals such as the
Humpback whale.
Guam and the
Northern Mariana Islands also have a small number of mammals, such as the
Mariana fruit bat; oceanic mammals include
Fraser's dolphin and the
Sperm whale. The
fauna of Puerto Rico includes the
common coquí (frog), while the
fauna of the U.S. Virgin Islands includes species found in
Virgin Islands National Park (including 302 species of fish).
American Samoa has a location called
Turtle and Shark which is important in
Samoan culture and mythology.
Protected areas
There are two
National Parks in the U.S. territories: the
National Park of American Samoa, and
Virgin Islands National Park. The
National Park Service also manages
War in the Pacific National Historical Park on Guam. There are also
National Natural Landmarks,
National Wildlife Refuges (such as
Guam National Wildlife Refuge),
El Yunque National Forest in
Puerto Rico, and the
Pacific Islands Heritage Marine National Monument (which includes the
U.S. Minor Outlying Islands).
Public image

In ''The Not-Quite States of America'', his book about the U.S. territories, essayist Doug Mack said:
Representative
Stephanie Murphy of Florida said about a 2018 bill to make Puerto Rico the 51st state, "The hard truth is that Puerto Rico's lack of political power allows Washington to treat Puerto Rico like an afterthought." According to
Governor of Puerto Rico Ricardo Rosselló, "Because we don't have political power, because we don't have representatives,
osenators, no vote for president, we are treated as an afterthought." Rosselló called Puerto Rico the "oldest, most populous colony in the world".
Rosselló and others have referred to the U.S. territories as American "colonies".
David Vine of ''The Washington Post'' said the following: "The people of
he U.S. territoriesare all too accustomed to being forgotten except in times of crisis. But being forgotten is not the worst of their problems. They are trapped in a state of third-class citizenship, unable to access full democratic rights because politicians have long favored the military's freedom of operation over protecting the freedoms of certain U.S. citizens."
In his article "How the U.S. Has Hidden Its Empire", Daniel Immerwahr of ''The Guardian'' writes, "The confusion and shoulder-shrugging indifference that mainlanders displayed
oward territoriesat the time of Pearl Harbor hasn't changed much at all.
.. aps of the contiguous U.S.give
ainlandersa truncated view of their own history, one that excludes part of their country."
The
2020 U.S. Census excludes non-citizen U.S. nationals in American Samoa—in response to this,
Mark Joseph Stern of ''Slate'' said, "The Census Bureau's total exclusion of American Samoans provides a pertinent reminder that, until the courts step in, the federal government will continue to treat these Americans with startling indifference."
Galleries
Members of the House of Representatives (non-voting)
File:Aumua Amata Radewagen congressional photo.jpg, alt=Official photo, with American flag, Amata Coleman Radewagen (R), (American Samoa)
File:James Moylan official photo (1).jpg, alt=Official photo, James Moylan (R), (Guam)
File:Kimberlyn King-Hinds official portrait.jpg, alt=Official photo, Kimberlyn King-Hinds (R), (Northern Mariana Islands)
File:Hernández Rivera Pablo 119th Congress.jpg, alt=Official photo, Pablo Hernández Rivera (D), (Puerto Rico)
File:Rep._Stacey_E._Plaskett_(VI).jpg, alt=Official photo, Stacey Plaskett (D), (U.S. Virgin Islands)
Territorial governors
File:Nikolao Pula with CHCC Staff 2022-04-09 Cropped.jpg, alt=Pula Nikolao Pula, Pula Nikolao Pula (R), ( American Samoa)
File:Lou Leon Guerrero in 2018.jpeg, alt=Lou Leon Guerrero, Lou Leon Guerrero (D), ( Guam)
File:Arnold Palacios.jpg, alt=Arnold Palacios, Arnold Palacios (I), ( Northern Mariana Islands)
File:Official portrait of Resident Commissioner Jenniffer Gonzalez (4x5 cropped).jpg, alt=Jenniffer González-Colón, Jenniffer González-Colón ( PNP-R), ( Puerto Rico)
File:Governor_Albert_Bryan_Jr..jpg, alt=Albert Bryan, Albert Bryan Jr. (D), ( U.S. Virgin Islands)
Satellite images
File:TutuilaFromSpace.jpg, Tutuila and Aunu'u ( American Samoa)
File:Guam ali 2011364 lrg.jpg, Guam
File:Saipan from ISS 2.png, Saipan ( Northern Mariana Islands)
File:STS034-76-88.jpg, Puerto Rico
File:US Virgin Islands.png, U.S. Virgin Islands
File:BakerIsland_ISS010.jpg, alt=Satellite photo, Baker Island
File:Howland_island_nasa.jpg, alt=Satellite photo, Howland Island
File:JarvisISS008-E-14052.PNG, alt=Satellite photo, Jarvis Island
File:Johnston_Atoll.png, alt=Satellite photo, Johnston Atoll
File:Kingman_Reef_-_2014-02-18_-_Landsat_8_-_15m.png, alt=Satellite photo, Kingman Reef
File:Midway_Atoll_aerial_photo_2008.JPG, alt=Satellite photo, Midway Atoll
File:Navassa_ISS014.jpg, alt=Satellite photo, Navassa Island
File:Palmyra_Atoll_2010-03-18,_EO-1_ALI_bands_5-4-3-1,_15m_resolution.png, alt=Satellite photo, Palmyra Atoll
File:Wake_Island.png, alt=Satellite photo, Wake Island
Maps
File:Aq-map.png, American Samoa
File:Guam - Location Map (2013) - GUM - UNOCHA.svg, Guam
File:Northern Mariana Islands map.gif, Northern Mariana Islands
File:Rico (1).png, Puerto Rico
File:Virgin Islands-CIA WFB Map.png, U.S. Virgin Islands
File:NOAA Map of the US EEZ.svg, U.S. exclusive economic zone
See also
More detail on all current territories
* Article indexes:
AS,
GU,
MP,
PR,
VI
* Congressional districts:
AS,
GU,
MP,
PR,
VI
* Geography:
AS,
GU,
MP,
PR,
VI
* Geology:
AS,
GU,
MP,
PR,
VI
*
List of museums in the unincorporated territories of the United States
*
List of U.S. National Historic Landmarks in the U.S. territories
* Outlines:
AS,
GU,
MP,
PR,
VI
* Per capita income:
AS,
GU,
MP,
PR,
VI
*
Territories of the United States on stamps
*
U.S. National Historic Places:
AS,
GU,
MP,
PR,
VI,
UM
Related topics
*
Enabling act (United States)
*
Historic regions of the United States
*
Insular area
*
List of extreme points of the United States
*
List of states and territories of the United States
*
Organic act
*
Organized incorporated territories of the United States
*
Territorial evolution of the United States
*
U.S. Caribbean region
*
U.S. territorial sovereignty
*
51st state
Notes
References
External links
The United States and its Territories: 1870–1925: The Age of Imperialism(
Digital Library special collectionat the
University of Michigan
The University of Michigan (U-M, U of M, or Michigan) is a public university, public research university in Ann Arbor, Michigan, United States. Founded in 1817, it is the oldest institution of higher education in the state. The University of Mi ...
)
FindLaw: ''Downes v. Bidwell'', 182 U.S. 244 (1901)regarding the distinction between incorporated and unincorporated territories
FindLaw: ''People of Puerto Rico v. Shell Co.'', 302 U.S. 253 (1937)regarding the application of U.S. law to organized but unincorporated territories
FindLaw: ''United States v. Standard Oil Company'', 404 U.S. 558 (1972) regarding the application of U.S. law to unorganized unincorporated territories
Application of the U.S. Constitution in U.S. Insular Areas
Definitions of Insular Area Political Organizations
United States District Court decision addressing the distinction between Incorporated vs Unincorporated territoriesUSDA—Islands on the Edge: Housing Development and Other Threats to America's Pacific and Caribbean Island ForestsHarvard Law Review—U.S. Territories: IntroductionThe Washington Post—Most countries have given up their colonies. Why hasn't America?LGBT issues in the U.S. territories(includes background information about the U.S. territories)
{{DEFAULTSORT:Territories Of The United States
Colonization history of the United States