Country
Australia and Oceania
Marshall Islands
The Marshall Islands are a country of low coral islands in the Pacific Ocean. Rings of islands circle calm lagoons. Long ago, sailors made maps of the waves from sticks and shells.
The Marshall Islands are a country in the central Pacific made of 29 coral atolls and 5 coral islands in two long chains. No island rises more than 6 meters above high tide. Marshallese navigators once learned to read ocean swells with charts made of sticks. The 2021 census counted 42,418 people.
The Republic of the Marshall Islands spreads more than 1,200 islands and islets across two parallel atoll chains, Ratak (Sunrise) and Ralik (Sunset), in eastern Micronesia. Self-governing under its 1979 constitution and in free association with the United States, it is home to Kwajalein, which Britannica calls the world's largest atoll. Its 2021 census counted 42,418 people, down from 53,158 in 2011.
Photo: mrlins, CC BY 2.0, via Wikimedia Commons
Discover the Marshall Islands
The Marshall Islands are far out in the Pacific Ocean.
The islands are flat and sandy. Most are rings of land around a lagoon.
The Marshall Islands are in the central Pacific Ocean, among the easternmost islands of Micronesia. The country has 29 coral atolls and 5 coral islands, with more than 1,200 islands and islets in all, arranged in two chains: Ratak, the Sunrise chain, in the east and Ralik, the Sunset chain, in the west.
Marshallese is the official language, and English is also spoken. The money is the US dollar. The capital is on Majuro Atoll. The 2021 census counted 42,418 people. The photo shows the main road on Majuro.
The two chains lie about 200 km apart and run some 1,300 km (800 miles) from northwest to southeast; together the islands have only about 181 km² of land, scattered over roughly 466,000 km² (180,000 square miles) of ocean. Majuro Atoll is the capital; government offices are in Delap-Uliga-Djarrit (DUD), three islets joined by landfill.
The 2021 census, managed by the Economic Policy, Planning and Statistics Office, counted 42,418 people, a fall from 53,158 in 2011 in which, the office's director said, migration was a major factor. Marshallese is the official language and the language of the Nitijela, the parliament; English is spoken, though by a minority fluently. The photo shows Majuro's main road.
Majuro, Kwajalein and Bikini
Majuro is where the capital is.
Kwajalein is a giant ring of islands around a huge lagoon.
Most people live on two atolls: Majuro, where the capital is, and Kwajalein. Majuro has a dock for cargo ships, and both Majuro and Kwajalein have international airports. On the other atolls, people live in villages, and ships and small planes link the islands.
Kwajalein is the largest atoll in the world, Britannica says. Its islets add up to only about 16 square kilometers of land, but they circle a lagoon of about 1,700 square kilometers. Many atolls have good places for boats to anchor inside their lagoons.
Majuro and Kwajalein, which offers jobs at a United States missile testing range, together held more than three-fourths of the population in the 2021 census: 23,156 on Majuro Atoll and 9,789 on Kwajalein Atoll. Both have international airports; government ships run scheduled voyages to the outer islands, where people live in traditional villages.
Kwajalein, the largest atoll in the group and, Britannica says, the world, has about 16 km² of land around a lagoon of about 1,700 km² (655 square miles). Ebeye, on Kwajalein, and Majuro have hospitals. In 2010 UNESCO inscribed Bikini Atoll on the World Heritage List as the site of United States nuclear tests from 1946 to 1958.
Rings of coral
An atoll is a ring of coral islands.
In the middle is a calm lagoon. Coconut palms and breadfruit trees grow on the sand.
Most of the Marshall Islands are true atolls: an oval coral reef around a lagoon, with small islands strung along the reef. The coral sits on the rims of old volcanoes that rise from the deep ocean floor. No island is more than 6 meters above high tide.
The soil is sandy and not very fertile. Coconut palms, pandanus and breadfruit trees are the main plants. It is warm all year, about 28 °C on average. The south gets much more rain than the north, where some atolls have no people because too little rain falls. The photo shows the Pacific Ocean off Colombia, not these islands.
Nearly all of the 29 atolls are true atolls: irregular, oval reefs enclosing a lagoon, with islets along the reef. The islands are coral caps on the rims of submerged volcanoes, and none rises more than about 6 m above high tide. Soils are sandy and low in fertility; coconut and pandanus palms and breadfruit dominate, and the Ratak islands tend to be more wooded than the Ralik.
The mean annual temperature is about 28 °C. Rainfall rises from 500–800 mm a year in the north to about 4,000 mm (160 inches) in the southern atolls; October and November are the wettest months, and several northern atolls are uninhabited for lack of rain. The photo shows the Pacific Ocean off Nuquí, Colombia, not the Marshall Islands.
A sea where sharks are protected
The ocean around the islands is full of life.
The country made a law to protect sharks in its waters.
In 2011 the Nitijela, the Marshall Islands' parliament, passed a law ending commercial shark fishing in all of the country's waters, almost 2 million square kilometers of ocean. At the time, the Pew Environment Group called it the world's largest shark sanctuary. The law also made it illegal to sell sharks or shark products, and any shark caught by accident must be set free.
On the outer islands, many families fish, grow coconut, pandanus, breadfruit and taro, and raise pigs and chickens. They also make copra, dried coconut, which ships carry to a coconut-oil plant in Majuro: 7,275 tons in the 2024 fiscal year. The photo shows the Pacific Ocean off Colombia, not these islands.
In October 2011 the Nitijela unanimously ended commercial shark fishing in all 1,990,530 km² of the country's waters, which the Pew Environment Group then called the world's largest shark sanctuary. The law banned the sale of sharks and shark products, set large fines for possessing shark fins, banned the wire leaders used on longlines and required fishing vessels to land their catch in Marshallese ports. It followed a March 2011 moratorium by the Marine Resources Authority.
Britannica describes outer-island life as subsistence farming, fishing and raising pigs and poultry, with coconut, pandanus, breadfruit and taro the major food crops. Copra is still made there: in fiscal 2024 copra makers delivered 7,275 tons to the Tobolar Copra Processing Authority in Majuro, after a record 7,580 tons in 2022 (Marshall Islands Journal, 2025). The photo shows the Pacific Ocean off Colombia, not the Marshall Islands.
Marshallese life and navigation
Marshallese sailors once steered canoes by feeling the waves.
They learned the waves from maps made of sticks and shells.
The Marshallese are Micronesian people, and most are Christian today. Long ago, the islanders were skilled navigators who made long canoe trips between the atolls. Many atolls are flat and impossible to see from a distance. Navigators learned to feel how ocean swells bend around islands.
They studied this with stick charts: sticks, usually the midribs of palm fronds tied with coconut fiber, showed the swells, and small shells marked islands. Students memorized the charts at home instead of taking them to sea.
The Marshallese are Micronesians; American missionaries arrived in the 1850s, and most people are now Christian. Navigators read the swells, along with stars and bird movements: Hakai Magazine (2015) describes swells bending around land and making a choppy sea that told a navigator where an island lay. Their stick charts came in two broad types, the teaching mattang, showing how waves move around land, and the rebbelib, mapping actual islands and swells; a third type, the medo, covered smaller areas. Use declined, particularly after World War II.
The constitution of 1979 created a president elected by the 33-member Nitijela, with a Council of Iroij (chiefs) advising on traditional law and custom. Majuro is home to the College of the Marshall Islands (1993), which grants certificates and associate degrees.
Navigators to a republic
People sailed to these islands about 2,000 years ago.
Much later other countries ruled them. Today the Marshall Islands govern themselves.
People settled the Marshall Islands about 2,000 years ago; charcoal from earth ovens on Majuro dates to around 30 BCE to 50 CE. A Spanish navigator sighted the islands in 1529, and the British captains John Marshall and Thomas Gilbert explored part of them in 1788.
Germany, then Japan, and after World War II the United States ran the islands. In 1979 the Marshall Islands adopted their own constitution and began governing themselves. They joined the United Nations in 1991.
Micronesians, perhaps influenced by Lapita culture, settled the islands around the start of the Common Era; earth-oven charcoal at Laura on Majuro gives dates of about 30 BCE and 50 CE. Álvaro Saavedra sighted them in 1529, John Marshall and Thomas Gilbert explored in 1788, and Russian expeditions mapped much of the group (1803–23). Germany made a protectorate in 1886, Japan took the islands in 1914, and the United States governed them as part of a UN trust territory from 1947.
After their people were moved to other atolls, Bikini and Enewetak served as US nuclear test sites from 1946 to 1958, and Bikini was later found too contaminated for its people to return permanently. The 1979 constitution brought self-government, a Compact of Free Association with the United States was approved by voters in 1983, US administration ended in 1986, and the country joined the UN on September 17, 1991.
The Marshall Islands on the map
Find the Pacific Ocean on the globe.
Look north of the equator, in the middle of the ocean. Tiny dots in two lines are the Marshall Islands.
Find the central Pacific, just north of the equator. The Marshall Islands are two lines of atolls running from northwest to southeast, about 200 kilometers apart.
Their nearest neighbors are Wake Island to the north, Kiribati and Nauru to the south, and the Federated States of Micronesia to the west. The country has no land borders.
The Ratak and Ralik chains lie about 200 km apart and stretch some 1,300 km northwest to southeast, scattered over about 466,000 km² of ocean; the country's waters cover 1,990,530 km² (Pew, 2011).
Nearest neighbors: Wake Island (north), Kiribati and Nauru (south) and the Federated States of Micronesia (west).
- Land area
- 181 km²
- Atolls and coral islands
- 29 + 5
- Highest land above high tide
- under 6 m
- People (2021 census)
- 42,418
Amazing facts
-
Sailors learned the waves from maps made of sticks and shells.
Marshallese stick charts used curved sticks for ocean swells and small shells for islands.
Stick charts, usually palm-frond midribs tied with coconut fiber, used diagonal and curved sticks for swell patterns and fingernail-sized shells for islands.
-
Kwajalein has a giant lagoon inside its ring of islands.
Kwajalein's islets have only about 16 square kilometers of land but surround a lagoon of about 1,700 square kilometers.
Kwajalein, the largest atoll in the world according to Britannica, has about 16 km² (6 square miles) of land around a 1,700 km² (655-square-mile) lagoon.
-
The capital's town is three little islands joined together.
Government offices are in Delap-Uliga-Djarrit, three islands on Majuro that were joined by landfill.
The capital town's local name, DUD, is an acronym for Delap, Uliga and Djarrit, three islets now merged by landfill.
-
Some islands in the north have no people because little rain falls.
Several northern atolls are uninhabited because they get too little rain.
Rainfall ranges from 500–800 mm in the north, where several atolls are uninhabited for lack of rain, to about 4,000 mm in the south.
Words to know
- atoll
- a ring-shaped coral reef or chain of islands around a lagoon
- lagoon
- a shallow body of water partly or wholly enclosed by a reef or islands
- swell
- a long, rolling wave that travels far across the ocean
- navigator
- a person who finds the way across the sea
- copra
- dried coconut meat, sold to make coconut oil
- sanctuary
- a place where animals are protected by law
Discovery challenge
-
What is an atoll?
What shape do most of the Marshall Islands' atolls have?
How does Britannica describe a true atoll, as most of the Marshall Islands are?
- A ring of coral around a lagoon
- A tall snowy mountain
- A long river valley
Show the answer
A ring of coral around a lagoon
A ring of coral around calm water.
An oval coral reef around a lagoon, with islets on the reef.
An irregular, oval coral reef surrounding a lagoon, with islets along the reef.
-
What did old maps of the waves use for islands?
On Marshallese stick charts, what stood for islands?
In a Marshallese stick chart, which material marked the positions of islands?
- Small shells
- Feathers
- Stones painted red
Show the answer
Small shells
Small shells!
Small shells; the sticks showed swells.
Fingernail-sized shells; curved and diagonal sticks showed swells.
-
Which animals are protected in all the country's waters?
In 2011 the Marshall Islands made a sanctuary for which animals?
Which animals did the Nitijela's 2011 law protect across 1,990,530 km² of ocean?
- Penguins
- Sharks
- Polar bears
Show the answer
Sharks
Sharks!
Sharks: commercial shark fishing was ended.
Sharks: fishing, sale, trade and possession were banned.
-
How high are the islands?
How high above high tide do the Marshall Islands rise?
According to Britannica, what is the most any Marshall Islands atoll or island rises above high tide?
- No more than about 6 meters
- About 600 meters
- Over 2,000 meters
Show the answer
No more than about 6 meters
They are very low: no more than about 6 meters above high tide.
No more than about 6 meters (20 feet).
About 6 m (20 ft) above high tide.
Places to discover in Marshall Islands
-
Watch
City
Majuro
Majuro is the capital of the Marshall Islands, a country in the Pacific Ocean. It is an atoll: a ring of 64 small islands on a coral reef around a lagoon. The 2021 census counted 23,156 people on the atoll.
-
Watch
Natural wonder
Pacific Ocean
The Pacific Ocean is the largest and deepest ocean basin on Earth, covering more than 30 percent of the planet's surface. It holds more than half of Earth's free water. Its deepest point, Challenger Deep in the Mariana Trench, is nearly 11 kilometers down, and earthquakes and volcanoes ring its edges.
Explore next
-
Watch
City
Majuro
Majuro is the capital of the Marshall Islands, a country in the Pacific Ocean. It is an atoll: a ring of 64 small islands on a coral reef around a lagoon. The 2021 census counted 23,156 people on the atoll.
-
Watch
Natural wonder
Pacific Ocean
The Pacific Ocean is the largest and deepest ocean basin on Earth, covering more than 30 percent of the planet's surface. It holds more than half of Earth's free water. Its deepest point, Challenger Deep in the Mariana Trench, is nearly 11 kilometers down, and earthquakes and volcanoes ring its edges.
-
Watch
Country Kiribati Kiribati is a country of 33 coral islands scattered across about 2,900 kilometers of the central Pacific, on both sides of the Equator. Only 20 islands have people living on them, and most are low atolls ringed around lagoons. Kiribati became independent from Britain in 1979. Its 2020 census counted 119,438 people.
-
Watch
Country Nauru Nauru is a tiny island in the Pacific Ocean, just south of the Equator. It covers only 21 square kilometers. Mining for phosphate, a rock made from old bird droppings, changed most of the island. The 2021 census counted 11,680 people.
-
Watch
Country Micronesia The Federated States of Micronesia is a country in the western Pacific made of four states: Yap, Chuuk, Pohnpei and Kosrae. Its islands range from high islands to low coral atolls, spread across about 2,800 kilometers of ocean. Off Pohnpei lie the stone ruins of Nan Madol, a World Heritage site. The 2023 census counted 75,817 people.
-
Watch
Country Australia Australia is a country and the smallest continent, surrounded by ocean in the Southern Hemisphere. Much of its middle is dry and flat, most people live near the coast, and its animals include kangaroos, koalas and the platypus, a mammal that lays eggs.
-
Watch
Country American Samoa American Samoa is a group of islands in the South Pacific, the eastern part of the Samoan islands. It is a territory of the United States, but most people are Samoan and follow the fa'asamoa, the Samoan way of life. Rainforest covers its steep volcanic mountains, coral reefs ring its shores, and the 2020 census counted 49,710 people.
-
Watch
Country Christmas Island Christmas Island is an Australian territory in the Indian Ocean, south of Java. It is the top of an old volcanic mountain that rises from the sea floor, covered in rainforest. It is famous for the red crab migration, when millions of crabs march from the forest to the sea. About 1,889 people lived there in 2025.
For parents & teachers
What children will learn
- Locate the Marshall Islands and their two atoll chains in the central Pacific.
- Explain what an atoll is and why the islands are so low.
- Describe how Marshallese navigators used stick charts to learn ocean swells.
- Outline the history from early settlement to self-government in 1979 and UN membership in 1991.
Recommended ages: 3 to 17 · About 15 minutes
Talk about it
- How could you find an island you cannot see, using only the waves?
- Why might people move from small outer islands to Majuro or Kwajalein?
- Why would a country choose to protect sharks in all of its waters?
Try at home or in class
- Make a stick chart with craft sticks or straws and buttons: lay curved sticks for waves and buttons for islands.
- Drop a pebble into a tub of water beside a block and watch how the ripples bend around it.
Key vocabulary: atoll, lagoon, swell, navigator, copra, sanctuary
Where these facts come from
- Wikidata , Wikimedia Foundation (CC0 1.0)
- Natural Earth vector data , Natural Earth (NACIS) (Public domain)
- Marshall Islands , Encyclopaedia Britannica
- Marshall Islands: History , Encyclopaedia Britannica
- Marshall Islands: Atolls and Major Places (census results from the Economic Policy, Planning and Statistics Office) , City Population (Thomas Brinkhoff)
- Marshall Islands census numbers show heavy out-migration , RNZ
- Marshall Islands Census 2021 , Global Health Data Exchange (IHME)
- Bikini Atoll Nuclear Test Site , UNESCO World Heritage Centre
- Navigating a Sticky Situation , Hakai Magazine
- World's Largest Shark Sanctuary Declared in Central Pacific , The Pew Charitable Trusts
- Copra set to dip in 2025 , The Marshall Islands Journal
- PlayOwl region table, version 1 , PlayOwl (PlayOwl original data)
- flag-icons 7.5.0 , Panayiotis Lipiridis and contributors (MIT)
- Wikimedia Commons , Wikimedia Foundation (Per file (public domain, CC0, CC BY or CC BY-SA); see each media record)
Checked, not yet human-reviewed. Last updated November 1, 2026. Spotted a mistake? Tell us.