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Lowest Average Elevation by Country (Top 13)

Lowest Average Elevation by Country (Top 13)

Education & ScienceApril 22, 2026

The average land elevation on Earth is about 840 meters (2,756 feet) above sea level. However, some countries barely rise above the ocean, which has major effects on their geography, ecology, economies, and even their survival as climate change accelerates. World Atlas data shows that the 13 countries with the lowest average elevations range from just 5 feet (Maldives) to 272 feet (Trinidad and Tobago).

These nations are among the most geographically fragile places on the planet, especially when compared to high-altitude countries like Bhutan (10,761 ft), Nepal (10,761 ft), and Tajikistan (10,449 ft). This article takes a closer look at each of the 13 lowest-elevation countries, covering their geological backgrounds, key statistics, climate risks, and their adaptation efforts.

The Ranked Data at a Glance

Rank	Country	Average Elevation (Feet)	Average Elevation (Meters)
1	Maldives	5 ft	1.5 m
2	Tuvalu	6 ft	1.8 m
3	Kiribati	7 ft	2 m
4	Marshall Islands	7 ft	2 m
5	Singapore	49 ft	15 m
6	Qatar	92 ft	28 m
7	Netherlands	98 ft	30 m
8	Denmark	112 ft	34 m
9	Gambia	112 ft	34 m
10	Estonia	200 ft	61 m
11	Senegal	226 ft	69 m
12	Guinea-Bissau	230 ft	70 m
13	Trinidad and Tobago	272 ft	83 m

Source: World Atlas

1. Maldives — Average Elevation: 5 Feet (1.5 Meters)

The Maldives holds the undisputed title of the world’s lowest-lying nation, with an average elevation of just 1.5 meters (4.9 feet) above sea level. The country’s highest natural point reaches only 2.4 meters (7 ft 10 in) above sea level, making it not just the flattest country by average but also the nation with the world’s lowest maximum elevation.

Key Facts:

The Maldives comprises approximately 1,192 coral islands arranged in 26 natural atolls.
The national population exceeds 389,000 people.
The country consists entirely of coral atolls rather than volcanic or continental landmass.
Atolls form through a slow geological process: coral grows around a subsiding volcanic seamount over millions of years, leaving a ring-shaped reef around a central lagoon.
The Maldives straddles the equator in the central Indian Ocean, southwest of Sri Lanka.
Tourism accounts for the primary source of national income and government revenue.

Geological Profile:
The geological composition of the Maldives is foundational to its low elevation. Unlike mountainous nations built on tectonic collisions, the Maldives sits on thick layers of dead coral limestone perched on submerged volcanic seamounts. Scientists have drilled over 1,400 meters through coral limestone before striking volcanic rock on Pacific atolls, a structural pattern replicated across the Indian Ocean island chains. Coral atoll islands are typically low-lying by definition, with elevations of less than 5 meters considered standard across all atoll formations globally.

Climate Vulnerability:

Scientists predict sea levels could rise by 0.5 to 1.4 meters during the 21st century, threatening the physical existence of many Maldivian islands.
Under the most severe IPCC scenarios (SSP5-8.5), global mean sea level rise by 2100 is projected between 0.63 and 1.01 meters.
The Maldivian government has initiated construction of Hulhumalé, a purpose-built artificial island reclaimed from a lagoon, designed to be more climate-resilient.
Hulhumalé Phase I reclamation began on October 16, 1997, covering 188 hectares at a cost of USD 11 million.
As of early 2021, Hulhumalé housed approximately 100,000 residents and is designed to eventually accommodate 240,000 people.
Hulhumalé Phase 3 reclamation was actively underway as of late 2025, with 31 of a planned 63 hectares reclaimed.

2. Tuvalu — Average Elevation: 6 Feet (1.8 Meters)

Tuvalu ranks second globally with an average elevation of just 1.8 meters (6 feet). It is a Western Pacific archipelagic nation situated approximately 4,000 kilometers northeast of Australia, roughly halfway between Australia and Hawaii.

Key Facts:

Tuvalu consists of three reef islands and six atolls.
The total land area is only about 26 km² (less than 10 sq mi).
The highest elevation in the country — just 4.6 meters (15 ft) above sea level — is found on Niulakita island.
This gives Tuvalu the second-lowest maximum elevation of any country in the world, after the Maldives.
The nation contains approximately 710 km² of reef platforms.
Soils are typically shallow, porous, alkaline, and coarse-textured, with carbonate mineralogy.

Climate Vulnerability:

Tuvalu’s location in the open ocean makes it especially vulnerable to storm surges and wave overtopping.
The highest elevations are typically narrow storm dunes on the ocean-facing side of islands, prone to overtopping during tropical cyclones.
Cyclone Bebe famously caused catastrophic overtopping.
Remote sensing studies over four decades showed a net increase of 73.5 hectares (2.9%) in land area due to sediment dynamics, though the changes are geographically uneven.
Atoll nations including Tuvalu face the most severe economic losses from sea level rise relative to GDP among all Pacific nations.

3. Kiribati — Average Elevation: 7 Feet (2 Meters)

Kiribati shares the third rank with the Marshall Islands, both averaging 2 meters (7 feet) above sea level. The Republic of Kiribati is an archipelago of 33 low-lying islands (32 coral atolls and one raised limestone island) spread across the central Pacific Ocean.

Key Facts:

The coral atolls have a maximum elevation of just 3 to 4 meters above sea level.
21 of the 33 islands are inhabited, with a population of approximately 119,446 as of 2020.
The total land area is roughly 811 km².
Kiribati straddles the equator with an average annual temperature of 27.5°C.
Islands are broken into three major groups: the Gilbert Islands, the Phoenix Islands, and the Line Islands.
Kiribati occupies an Exclusive Economic Zone (EEZ) of roughly 3.6 million km².
Approximately 51% of the population lives on the capital island of South Tarawa.

Climate Vulnerability:

Kiribati is recognized as one of the world’s most at-risk countries to climate change.
Its isolated, low-lying atolls, combined with highly concentrated population centers create extreme vulnerability.
Threats include heat waves, drought, intensified cyclones, saline intrusion, wave-driven flooding, and permanent inundation.
The 2019 IPCC Special Report on the Ocean and Cryosphere estimated a potential sea level rise of 1.1 meters by 2100 that could threaten to submerge over two-thirds of the country.
Projected estimates suggest some Pacific Island nations such as Kiribati, may be uninhabitable by 2050 due to climate change impacts.
The entire territory, except the volcanic island of Banaba, sits below two meters above sea level.

4. Marshall Islands — Average Elevation: 7 Feet (2 Meters)

The Marshall Islands co-rank third alongside Kiribati with an average elevation of 2 meters (7 feet). Located in the North Pacific Ocean, this island nation is one of the most geographically dispersed sovereign states on Earth.

Key Facts:

The Marshall Islands is composed of 29 coral atolls and 5 single coral islands.
These form two roughly parallel chains: the eastern Ratak (Sunrise) chain and the western Rālik (Sunset) chain.
The nation encompasses over 750,000 sq miles (approximately 1.94 million km²) of ocean but only about 70 sq miles (181 km²) of actual land.
The total number of islands and islets is approximately 1,225.
22 of the 29 atolls and 4 of the 5 islands are uninhabited.
The highest recorded point in the Marshall Islands is on East-central Airik Island in Maloelap Atoll at just 14 meters (33 feet).
The Kwajalein Atoll contains the world’s largest lagoon and is used as a US missile test range.
The islands of Bikini and Enewetak are former U.S. nuclear test sites.

Geological and Ecological Profile:

Terrain consists entirely of low coral limestone and sand islands.
Fragile coral reefs fringe all atolls, serving as the only natural defense against ocean surge.
The clearance over the reef in submerged sections is typically no more than a couple of feet.

5. Singapore — Average Elevation: 49 Feet (15 Meters)

Singapore is a clear outlier in this ranking. It is the only global financial center and densely populated city-state among the world’s lowest-elevation countries. Its average elevation is 15 meters (49 feet). Singapore is flat because it originated from the southern tip of the Malay Peninsula, not because of coral atoll formation.

Key Facts:

One-third of Singapore, including the central business district, is less than 5 meters above sea level.
Singapore is one of the world’s most densely populated territories, covering just 728 km².
The country has pursued aggressive land reclamation — 17% of its current land area is reclaimed from the sea.
New buildings are mandated to be built at least 4 meters above mean sea level, and critical infrastructure at least 5 meters above mean sea level.
Singapore’s Prime Minister announced that up to SGD 100 billion (approximately USD 72 billion) could be spent on climate change adaptation, including flood defenses.
By 2100, sea levels around Singapore are projected to rise by approximately 1 meter, according to national climate projections.
Singapore’s urban planners have devised defensive strategies, including sea walls, polders, and new reclaimed islands.

Statistical Context:
Despite its high-income status, Singapore’s elevation profile makes it climatically comparable to Pacific atoll nations in terms of coastal flood risk. The difference lies not in geography but in adaptive capacity: Singapore’s financial resources and governance infrastructure enable it to invest billions in sea-level rise adaptation that poorer, low-lying nations cannot afford.

6. Qatar — Average Elevation: 92 Feet (28 Meters)

Qatar ranks sixth with a mean elevation of 28 meters (92 feet). The Qatari peninsula is a predominantly flat, barren desert landscape projecting northward into the Persian Gulf, bounded on all other sides by Saudi Arabia.

Key Facts:

Qatar covers approximately 11,586 km² — slightly smaller than the U.S. state of Connecticut.
The terrain is predominantly flat and desolate desert.
The highest point is Tuwayyir al Hamir at just 103 meters (338 feet).
Qatar’s lowest point is the Dukhan Sabkha, a salt flat depression reaching 7 meters below sea level.
The northern sector is relatively flat, while the central sector exhibits elevations ranging from 11 to 21 meters.
The peninsula’s shape reflects the Qatar Arch, formed during the Precambrian Amar Collision approximately 640–620 million years ago.
Sand dunes occupy 1.6% of Qatar’s area, reaching heights of 38 to 67 meters.
Qatar has no rivers and relies entirely on desalination for its freshwater supply.
The majority of the population is concentrated in or near the capital, Doha on the eastern part of the peninsula.

7. Netherlands — Average Elevation: 98 Feet (30 Meters)

The Netherlands is probably the world’s best-known low-elevation country. For centuries, it has battled the sea using impressive hydraulic engineering. The country’s name means “lower countries,” which directly reflects its geography.

Key Facts:

Approximately 26% of the Netherlands lies below sea level.
About 21% of the national population lives in areas below sea level.
The lowest point, the Zuidplaspolder northeast of Rotterdam, reaches 6.76 meters below average sea level.
Along with Lammefjord in Denmark, the Zuidplaspolder is also one of the lowest points in the entire European Union.
17% of the total land area was reclaimed from the sea through dike construction and pumping.
Polders — enclosed low-lying tracts of land drained and maintained by dikes and pumps — cover vast portions of the country.
Four major rivers (Rhine, Meuse, Scheldt, and Ems) drain into the Netherlands, making it the drainage basin for much of western Europe.
The country’s highest point is Vaalserberg in the southeast province of Limburg at 323 meters.
Amsterdam, Rotterdam, and Delft all sit below sea level.

Engineering Legacy:
The Dutch have spent centuries reclaiming land from the sea. Since the 14th century, polder drainage systems involving dikes, canals, windmills, and pumping stations have transformed the landscape, converting the beds of lakes, estuaries, and sea inlets into productive agricultural and urban land. This engineering tradition has made the Netherlands a global authority on flood management and climate adaptation.

8. Denmark — Average Elevation: 112 Feet (34 Meters)

Denmark is eighth on the list, tied with Gambia at an average elevation of 34 meters (112 feet). Its low landscape is mostly the result of glaciers from the last Ice Age, which smoothed the land and left flat plains across the Jutland peninsula and Danish islands.

Key Facts:

Denmark’s lowest dry elevation is found in the Lammefjord Polder in Zealand province at 7.0 meters (23 feet) below sea level.
The Lammefjord Polder is considered one of the lowest points in the entire European Union.
The polder was drained beginning in 1873, but the lowest elevations were only pumped dry by 1943.
The reclaimed Lammefjord seabed is excellent agricultural land, especially for carrots and potatoes.
Denmark’s highest elevation is Møllehøj at 170.86 meters — exceptionally low for a European country.
The country sits at the junction of the North Sea and Baltic Sea, with 7,314 km of coastline.
Denmark’s flat topography reflects a landscape shaped by glacial deposition rather than tectonic uplift.

9. Gambia — Average Elevation: 112 Feet (34 Meters)

The Gambia shares the eighth and ninth spots with Denmark, both at an average elevation of 34 meters (112 feet). It is Africa’s smallest mainland country and is a narrow strip of land along the West African coast, made up mostly of the Gambia River floodplain.

Key Facts:

The Gambia is entirely surrounded by Senegal except for its short Atlantic coastline.
The country extends approximately 480 km inland along the Gambia River but is only 24–48 km wide.
Its geography is dominated by the low-lying Gambia River valley and its adjacent floodplains.
Elevations rarely exceed 50 meters anywhere in the country.
The population is approximately 2.9 million (2026).
The Gambia River is the country’s defining geographic feature and primary axis of settlement.

10. Estonia — Average Elevation: 200 Feet (61 Meters)

Estonia is tenth on the list, with an average elevation of 61 meters (200 feet). It sits on the eastern coast of the Baltic Sea and has a very different geography from the tropical atoll nations. Estonia’s low elevation comes from its location on the flat northwestern part of the East European Platform.

Key Facts:

Estonia’s average elevation reaches approximately 50–61 meters (164–200 ft).
The country’s highest point, Suur Munamägi (“Big Egg Mountain”) in the hilly southeast, reaches just 318 meters (1,043 feet).
Estonia is a flat country covering 45,339 km², with the northwest and coastal regions particularly low-lying.
The country boasts over 3,794 km of coastline marked by bays, straits, and inlets.
1,520 islands sit off Estonia’s coast, comprising nearly 8% of the country’s total land area.
The country has more than 1,400 natural and artificial lakes.
Oil shale and limestone deposits, along with forests covering 47% of the land, are the dominant natural resources.
Estonia’s climate is maritime, with moderate winters and cool summers.

11. Senegal — Average Elevation: 226 Feet (69 Meters)

Senegal is eleventh, with an average elevation of 69 meters (226 feet). This coastal West African country lies in a large geological depression called the Senegal-Mauritanian Basin, which is why most of its land is very flat.

Key Facts:

Terrain is generally low, with rolling plains rising to foothills only in the far southeast.
70% of Senegal’s population lives in the coastal region, amplifying the risk of climate change-driven displacement.
Natural hazards include seasonally flooded lowlands and periodic droughts.
Coastal flood hazard in Senegal is classified as “high” by global risk assessments, with potentially damaging waves expected at least once every 10 years.
The historic city of Saint-Louis sits on an extremely low-lying river-mouth plain and faces a severe coastal flooding risk.
Research shows that the most severe coastal water level events have the potential to flood nearly half of Saint-Louis’s plain.
The artisanal fishing district of Gueth Ndar is particularly vulnerable due to its low elevation on a sand barrier.
Senegal’s total land area is approximately 192,530 km².

12. Guinea-Bissau — Average Elevation: 230 Feet (70 Meters)

Guinea-Bissau is twelfth, with an average elevation of 70 meters (230 feet). This small West African country borders Senegal to the north and Guinea to the southeast, and it has one of the lowest coastlines in Africa.

Key Facts:

The terrain consists mostly of low coastal plains with Guinean mangrove swamps, rising toward a forest-savanna mosaic in the east.
The lowest point is sea level at the Atlantic Ocean.
The highest point is Dongol Ronde at just 277 meters (909 feet).
Guinea-Bissau hosts the Bijagós Archipelago — a UNESCO Biosphere Reserve of approximately 88 islands and islets — particularly renowned for its unique low-lying coastal ecosystems.
A global remote sensing analysis identified 1,203 km² of tidal flats in Guinea-Bissau, ranking it 28th worldwide in terms of tidal flat area.
The country borders the North Atlantic Ocean between Guinea and Senegal.
Its coastal mangrove swamps are among the most extensive in West Africa.

13. Trinidad and Tobago — Average Elevation: 272 Feet (83 Meters)

Trinidad and Tobago is the lowest-lying of the top 13 countries, with an average elevation of 83 meters (272 feet). Unlike the others on this list, it has real mountain ranges, but its large lowland plains on Trinidad and the coral platform in southwestern Tobago lower the national average.

Key Facts:

Trinidad is traversed by three distinct mountain ranges that are geological continuations of the Venezuelan coastal cordillera.
The Northern Range, an outlier of the Andes Mountains, contains the country’s highest peak, El Cerro del Aripo, at 940 meters (3,084 feet).
The second-highest peak, El Tucuche, reaches 936 meters (3,071 feet).
The Central Range is a low-lying, swampy range with a maximum elevation of just 325 meters.
The Southern Range reaches a maximum of only 305 meters.
Tobago, located 30 km northeast of Trinidad, is generally more rugged with elevations up to approximately 549 meters (1,800 feet).
The only extensive lowland on Tobago is a coral platform at the southwest end.
Trinidad’s Caroni Plain — composed of alluvial sediment — is the largest flat lowland zone, situated between the Northern and Central ranges.
The total land area of Trinidad and Tobago is 5,128 km².

The Science Behind Low Elevation: Geology and Geomorphology

Understanding why these 13 countries share such low elevations requires examining three distinct geological origins.

Coral Atoll Formation

The four countries with the lowest elevations (Maldives, Tuvalu, Kiribati, and the Marshall Islands) are made up entirely or mostly of coral atolls. Charles Darwin’s subsidence theory, widely supported, explains that atolls form when a volcanic island slowly sinks below the ocean over millions of years, while coral reefs continue to grow upward toward the sunlight. The reef and small coral islands are all that remain of the original volcano, forming a ring around a central lagoon. Because atoll formation relies on coral growing as fast as the sea rises, these islands are always thin, low, and just above the ocean surface.

Glacial and Fluvial Deposition

Estonia, Denmark, the Netherlands, and the Gambia have low elevations because of glaciers and river sediment. During the last ice age, glaciers flattened these areas and left behind moraine deposits in northern Europe and the flat plains of West Africa. In the Netherlands, polders are another example—these are areas of land reclaimed from below sea level over centuries through engineering.

Tectonic Flatlands and Sedimentary Basins

Qatar, Senegal, and Guinea-Bissau are located on ancient sedimentary basins where tectonic activity created wide, flat areas rather than mountains. In Qatar, the land is shaped by the Qatar Arch, a structure formed long ago during the Precambrian Amar Collision, which resulted in a gently rounded peninsula covered by loose sediment.

Sea Level Rise: The Defining Threat of the 21st Century

The most consequential implication of low national elevation is exposure to rising seas. The global mean sea level rise rate has more than doubled since the start of the satellite record, increasing from 2.1 mm per year between 1993 and 2002 to 4.7 mm per year between 2015 and 2024. In 2024 alone, global mean sea level increased by 5.9 mm — a record annual rise.

IPCC AR6 Projections for Global Mean Sea Level Rise (relative to 1995–2014 baseline):

By 2050: 0.15–0.23 m (low emissions) to 0.20–0.29 m (high emissions).
By 2100: 0.28–0.55 m (low emissions) to 0.63–1.01 m (high emissions).
By 2150: 0.37–0.86 m (low emissions) to 0.98–1.88 m (high emissions).

Statistical Impact on Specific Nations:

Current annual economic losses from coastal flooding in Asia and the Pacific total approximately USD 26.8 billion.
By 2050, annual economic damages from sea level rise in Asia and the Pacific are expected to reach USD 143.7–197.8 billion.
Atoll nations — Kiribati, Maldives, Marshall Islands, and Tuvalu — face the most severe economic losses relative to GDP of any country in the world.
1 million people in Asia and the Pacific currently live below 1 meter above mean sea level.
In the broader developing world, sea level rise disproportionately affects countries in Asia and the Pacific, home to approximately 59% of the world’s population.

Economic and Social Dimensions of Low Elevation

Infrastructure Costs:
Low elevation leads to ongoing, rising infrastructure costs. Flooding causes direct damage to homes, roads, and utilities and also imposes indirect costs such as lost productivity, lower property values, higher insurance premiums, and long-term economic problems. In 2024, the United States had 27 weather disasters that each caused over a billion dollars in damage, totaling about USD 182 billion. This shows how expensive repeated flooding can be, even for rich countries. For developing countries with low elevations, these costs are even more damaging. Wealthy countries sometimes see a boost in rebuilding and economic growth after floods, but this rarely happens in middle- or low-income countries, which often face lasting economic losses instead.

Agricultural Impact:
Low-lying delta and coastal regions in South and Southeast Asia grow about 88% of the world’s rice. Rising sea levels threaten to make farmland in these areas salty, putting the food supply of hundreds of millions at risk. Countries such as Senegal and Guinea-Bissau, where many people work in agriculture, are especially vulnerable to this problem.

Population Displacement:
In low-elevation developing countries, the risk of large-scale displacement is very high. If sea levels rise by one meter in Indonesia, 2.8 million people would have to move; with a three-meter rise, that number jumps to 5.1 million. In Vietnam, about 11% of the population is at risk from a one-meter rise, and up to 26% from a three-meter rise. For countries like Kiribati, Tuvalu, and the Marshall Islands, the entire population could eventually be forced to leave if their nations become uninhabitable.

Adaptation Strategies: How Low-Elevation Nations Are Responding

Land Reclamation and Artificial Islands:
The Maldives has invested heavily in land reclamation through the Hulhumalé project, building an artificial island that now houses approximately 100,000 people at a higher elevation than the natural islands. Singapore has reclaimed roughly 17% of its land area from the sea, transforming its coastline and expanding buildable territory.

Dike and Polder Systems:
The Netherlands pioneered the global standard in flood engineering. Since the 14th century, an elaborate drainage network of dikes, canals, and pumping stations has protected land that sits far below sea level. Denmark’s Lammefjord Polder similarly converted a former sea inlet into productive agricultural land. These European models are studied worldwide as templates for coastal climate adaptation.

Managed Retreat and International Migration:
For the most vulnerable atoll nations, managed retreat and migration agreements represent increasingly mainstream policy discussions. The Maldivian government has previously explored purchasing land abroad for potential population relocation in the event of worst-case scenarios.

Building Codes and Infrastructure Standards:
Singapore mandates that new buildings be constructed at least 4 meters above mean sea level, with critical infrastructure at least 5 meters above mean sea level. This regulatory approach — setting elevation-based minimum construction thresholds — is increasingly viewed as a model for other low-elevation nations.

Statistical Context: The World’s Elevation Spectrum

To fully appreciate the statistical significance of these 13 nations, consider the global elevation spectrum:

World average land elevation: 840 meters (2,756 feet).
Highest average elevation (Bhutan): 3,280 meters (10,761 feet).
Lowest average elevation (Maldives):5 meters (5 feet).
Ratio between highest and lowest: Bhutan’s average elevation is approximately 2,187 times higher than the Maldives’.

The four atoll countries (Maldives, Tuvalu, Kiribati, and the Marshall Islands) have average elevations that are only about 0.18–0.24% of the world’s average land elevation. This is extremely low by any standard. Even Trinidad and Tobago, the highest on this list at 83 meters, is just 9.9% of the global average. The Netherlands and Denmark, both wealthy and advanced, have average elevations below 5% of the world average. This shows that low elevation is not just a problem for developing countries—it is a geological fact that affects nations of all income levels, regions, and political systems.

Conclusion

The 13 countries with the lowest average elevations are found on five continents, have three different geological origins, and range from very wealthy places like Singapore to some of the poorest in West Africa. They all share a geographic vulnerability that did not matter much before the industrial age, but that is now a major challenge due to human-caused climate change. In 2024, global sea levels rose by a record 5.9 mm, and the rate of increase has more than doubled since satellites began tracking it.

For countries that are only 5 to 7 feet above sea level, these numbers are not just statistics—they show how much time remains before major changes, such as adaptation, relocation, or even losing land, become necessary. According to World Atlas data, these 13 countries are right at the edge of habitable land, making their elevation some of the most important geographic facts for policy, science, and human geography today.