1. Geographic Location of Vietnam
Vietnam is located on the eastern side of the Indochinese Peninsula in Southeast Asia and is part of the Asian continent. It shares its borders with several countries, with Laos and Cambodia to the west and China to the north. To the east and south, Vietnam is bordered by the East Sea (South China Sea).
Positioned along the eastern edge of the Eurasian landmass and near the center of Southeast Asia, Vietnam holds a strategically important geographic location. The country has direct access to the East Sea and a gateway to the Pacific Ocean, which creates favorable conditions for international trade, cultural exchange, and maritime activities. The 105°E meridian passes through Vietnam’s territory, meaning most of the country operates in the UTC+7 time zone.
2. Coordinates and Extreme Points of Vietnam
Geographic Coordinates
Mainland Vietnam extends from approximately 8°34′N to 23°23′N in latitude and from 102°09′E to 109°24′E in longitude. This north-south stretch gives the country a long, narrow shape with significant geographic and climatic variation across regions.
Extreme Points of Vietnam
- Northernmost point: Located at 23°22′N, 105°19′E in Lũng Cú Commune, Tuyên Quang Province
- Southernmost point: Located at 8°37′N, 104°43′E in Đất Mũi Commune, Cà Mau Province
- Westernmost point: Located at 22°24′N, 102°08′E in Sín Thầu Commune, Điện Biên Province
- Easternmost point: Located at 12°39′N, 109°28′E in Đại Lãnh Commune, Khánh Hòa Province
Beyond the mainland, Vietnam’s island territories extend further south and east in the East Sea (South China Sea), reaching approximately 6°50′N in latitude and spanning from about 101°E to 117°20′E in longitude. This wide maritime range further expands Vietnam’s geographic presence and strategic position in the region.
3. Topography of Vietnam
Vietnam’s landscape is remarkably diverse, with mountains and hills covering approximately three-quarters of the country’s total land area, while plains account for the remaining one-quarter. Despite its extensive mountainous terrain, about 85% of the country lies at elevations below 1,000 meters (3,281 feet), giving much of Vietnam a relatively low-lying topography.
The nation’s major flatlands include the Red River Delta in northern Vietnam and the Mekong River Delta in the south, both of which are among the country’s most important agricultural regions. In addition, the Central Coastal Plain stretches along the coast from Thanh Hóa Province to Lâm Đồng Province, forming a narrow but significant corridor of fertile land and human settlement.
Mountainous and hilly regions are concentrated primarily in northern Vietnam and along the Trường Sơn Mountain Range, which extends through much of the country’s central region. These highland areas play an important role in shaping Vietnam’s climate, river systems, biodiversity, and natural resources.
4. Territorial Scope of Vietnam
Vietnam’s territory is a unified and indivisible whole, consisting of land, sea, and airspace. These three components together define the country’s full sovereign space.
• Land Territory
Vietnam’s mainland stretches approximately 1,650 km from north to south. Its narrowest point from east to west is located in Quảng Trị Province, highlighting the country’s long and slender geographic shape.
- Total area: 331,212 km²
- Land area: approximately 93.5%
- Water area: approximately 6.5%
Land Borders
Vietnam shares land borders with three countries, extending for more than 4,600 km in total.
- Laos: over 2,100 km in length, bordering 9 provinces: Điện Biên, Sơn La, Thanh Hóa, Nghệ An, Hà Tĩnh, Quảng Trị, Huế, Đà Nẵng, and Quảng Ngãi
- China: over 1,400 km in length, bordering 7 provinces: Điện Biên, Lai Châu, Lào Cai, Tuyên Quang, Cao Bằng, Lạng Sơn, and Quảng Ninh
- Cambodia: over 1,100 km in length, bordering 8 provinces: Quảng Ngãi, Gia Lai, Đắk Lắk, Lâm Đồng, Đồng Nai, Tây Ninh, Đồng Tháp, and An Giang
Vietnam’s land borders are often defined by natural geographical features such as mountain peaks, river valleys, watershed divides, and stream channels.
Coastline and Maritime Region
Vietnam has a coastline stretching approximately 3,260 km from Móng Cái City in Quảng Ninh Province to Hà Tiên City in Kiên Giang Province.
The country has 20 coastal provinces and cities, including Quảng Ninh, Hải Phòng, Hưng Yên, Ninh Bình, Thanh Hóa, Nghệ An, Hà Tĩnh, Quảng Trị, Huế, Đà Nẵng, Quảng Ngãi, Gia Lai, Đắk Lắk, Khánh Hòa, Lâm Đồng, Ho Chi Minh City, Đồng Tháp, Vĩnh Long, Cần Thơ, and Cà Mau.
Islands and Archipelagos
Vietnam is home to more than 4,000 islands of various sizes, the majority of which are located close to the mainland coast. The country also has two major offshore archipelagos: the Hoàng Sa (Paracel) Archipelago, administered by Đà Nẵng, and the Trường Sa (Spratly) Archipelago, administered by Khánh Hòa Province.
Vietnam’s largest island is Phú Quốc Island, covering an area of approximately 574 square kilometers.
• Maritime Territory
Vietnam’s maritime area covers roughly 1 million square kilometers. The country’s easternmost offshore islands are located within the Trường Sa Archipelago.
The East Sea (South China Sea) is bordered by several coastal nations, including Vietnam, China, Indonesia, Thailand, the Philippines, Malaysia, Cambodia, Singapore, and Brunei.
Vietnam’s maritime zones include internal waters, the territorial sea, the contiguous zone, the exclusive economic zone (EEZ), and the continental shelf.
Internal Waters
Internal waters are the areas of water adjacent to the mainland and located landward of the baseline. Foreign vessels operating in these waters must comply with the laws and regulations of the coastal state. Permission is generally required for foreign ships to enter or leave internal waters.
Territorial Sea
The territorial sea is the maritime zone over which a coastal state exercises sovereignty. Vietnam’s territorial sea extends 12 nautical miles from the baseline (1 nautical mile = 1,852 meters).
The outer limit of the territorial sea constitutes Vietnam’s maritime national boundary. It is determined by lines drawn parallel to and equidistant from the baseline, as well as maritime boundary agreements in shared bays with neighboring countries.
Under the 1982 United Nations Convention on the Law of the Sea (UNCLOS), foreign vessels are generally not required to obtain permission to pass through another country's territorial sea, provided they comply with the principle of innocent passage.
The right of innocent passage allows ships to pass through territorial waters in a continuous and expeditious manner. During transit, vessels may not engage in activities that could threaten the peace, security, or interests of the coastal state, including:
- Threatening or using force
- Conducting intelligence-gathering activities
- Polluting the marine environment
- Engaging in illegal fishing
- Deviating from normal navigation routes without justification
However, military vessels, submarines, nuclear-powered ships, or vessels conducting specialized activities such as scientific research may be subject to additional requirements and may need prior authorization from the coastal state.
Vietnam’s Law of the Sea follows these international principles while also requiring foreign vessels to comply with Vietnamese regulations concerning security, safety, and environmental protection when passing through its territorial sea.
Contiguous Zone
The contiguous zone is a maritime area established to enable the coastal state to enforce its laws and protect its sovereign interests. Vietnam’s contiguous zone extends 12 nautical miles beyond the territorial sea.
Within this zone, the government may take measures related to national security and defense, customs enforcement, taxation, immigration control, public health regulations, and the prevention or punishment of legal violations.
Exclusive Economic Zone (EEZ)
The Exclusive Economic Zone extends beyond and adjacent to the territorial sea, creating a maritime zone that reaches 200 nautical miles from the baseline.
Within the EEZ, Vietnam possesses sovereign rights over the exploration, development, management, and use of natural resources. At the same time, other countries retain certain freedoms recognized under international law, including navigation, overflight, and the laying of submarine cables and pipelines.
Continental Shelf
The continental shelf consists of the seabed and subsoil that form the natural underwater extension of the country's land territory beyond the territorial sea. It generally extends to the outer edge of the continental margin and may reach depths of approximately 200 meters or more.
Where the outer edge of the continental margin lies within 200 nautical miles of the baseline, the continental shelf is measured out to the 200-nautical-mile limit.
Vietnam exercises sovereign rights over the exploration, exploitation, conservation, and management of natural resources located on and beneath its continental shelf.
• Airspace
Vietnam’s airspace refers to the atmospheric space above its national territory. Over land, it is defined by the country's land borders, while over the sea it extends above the territorial sea and the airspace associated with Vietnam’s islands and island territories.
5. Climate of Vietnam
Mainland Vietnam extends from 8°34′N to 23°23′N, placing the entire country within the tropical zone of the Northern Hemisphere. This geographic location, combined with the strong influence of the East Sea (South China Sea), gives Vietnam a humid tropical monsoon climate characterized by high temperatures, abundant rainfall, and consistently high humidity.
Vietnam’s climate varies considerably due to differences in latitude, topography, and proximity to the sea. As a result, distinct climate patterns can be observed across the country's northern, central, and southern regions.
Northern Vietnam
Northern Vietnam experiences a humid tropical monsoon climate with a relatively cool winter season. The region has four fairly distinct seasons: spring, summer, autumn, and winter. Summers are typically hot, humid, and rainy, while winters are cooler and drier, particularly in the mountainous areas of the north where temperatures can drop significantly.
Central Vietnam
Central Vietnam has a tropical monsoon climate that is strongly influenced by both its terrain and the East Sea. Rainfall is typically concentrated during the final months of the year, while many areas experience hot, dry föhn winds during the summer months. This region is also one of the most vulnerable to tropical storms and typhoons, which frequently affect the coastline and surrounding communities.
Southern Vietnam
Southern Vietnam has a tropical savanna-monsoon climate with consistently warm temperatures throughout the year. Rather than four seasons, the region experiences two distinct seasons: a rainy season and a dry season. Annual temperature fluctuations are generally much smaller than those found in northern Vietnam.
Rainfall Patterns
Vietnam receives substantial annual precipitation, with average rainfall generally ranging from about 1,500 mm to more than 2,000 mm per year. Many mountainous and coastal areas receive significantly higher amounts of rainfall due to the combined effects of topography and monsoon circulation patterns.
Monsoon Systems and Local Winds
Vietnam’s climate is shaped primarily by two major monsoon systems. The Northeast Monsoon typically affects the country from November through April, while the Southwest Monsoon generally dominates from May through October.
In addition to these large-scale weather systems, local wind patterns also play an important role in regional climate variation. These include the hot, dry föhn winds that affect parts of Central Vietnam and the southeasterly winds originating from the East Sea. Together, these influences contribute to the remarkable diversity and regional variation of Vietnam’s climate.
6. Notable Geographic Regions of Vietnam
* Regions and Provincial-Level Administrative Units
Vietnam is divided into three major geographic regions and six socioeconomic regions. The country consists of 34 provincial-level administrative units, including 28 provinces and 6 centrally governed cities.
• Northern Vietnam
Northern Vietnam is divided into two regions:
- Northern Midlands and Mountains Region
This region includes 9 provinces: Tuyên Quang, Cao Bằng, Lai Châu, Lào Cai, Thái Nguyên, Điện Biên, Lạng Sơn, Sơn La, Phú Thọ
- Red River Delta Region
This region includes 6 provinces and municipalities: Hà Nội City, Hải Phòng City, Bắc Ninh, Quảng Ninh, Hưng Yên, Ninh Bình
• Central Vietnam
Central Vietnam is divided into two regions:
- North Central Region
This region includes 5 provinces and municipalities: Thanh Hóa, Nghệ An, Hà Tĩnh, Quảng Trị, Huế City
- South Central Coast Region
This region includes 6 provinces and municipalities: Đà Nẵng City, Quảng Ngãi, Gia Lai, Đắk Lắk, Khánh Hòa, Lâm Đồng
• Southern Vietnam
Southern Vietnam is divided into two regions:
- Southeast Region
This region includes 3 provinces and municipalities: Hồ Chí Minh City, Đồng Nai, Tây Ninh
- Mekong River Delta Region
This region includes 5 provinces and municipalities: Đồng Tháp, Vĩnh Long, An Giang, Cần Thơ City, Cà Mau
* Notable Geographic Features
Vietnam is home to a wide range of remarkable geographic landmarks and natural features.
- Largest province: Lâm Đồng, with an area of approximately 24,233 square kilometers.
- Smallest province: Hưng Yên, covering approximately 2,514 square kilometers.
- Highest point: Fansipan Peak, rising to 3,143 meters in the Hoàng Liên Sơn Mountain Range in Lào Cai Province. It is often referred to as the "Roof of Indochina."
- Lowest point: The Cà Mau Peninsula in Cà Mau Province. This area has an average elevation of only about 0.5 to 1 meter above sea level, and some low-lying locations are nearly at sea level.
- Longest river entirely within Vietnam: The Đồng Nai River, with a length of approximately 586 kilometers.
- Largest natural lake: Ba Bể Lake, located in Thái Nguyên Province, covering an area of about 5 square kilometers.
- Largest island: Phú Quốc Island, located in An Giang Province, with an area of approximately 574 square kilometers.
- Largest cave in Vietnam and the world: Sơn Đoòng Cave, located within Phong Nha-Kẻ Bàng National Park in Quảng Trị Province. The cave is approximately 9 kilometers long, 200 meters high, and 160 meters wide, making it the largest known cave passage in the world.
7. The Significance of Vietnam’s Geographic Location
Vietnam’s geographic location plays an important role in the country’s economic development, political position, and cultural identity. Its strategic location, diverse natural environment, and access to major regional trade routes have significantly influenced the nation’s history and modern development.
Strategic Location
Vietnam is located in Southeast Asia and forms part of the broader East Asian region. The country shares land borders with China to the north and with Laos and Cambodia to the west, while its eastern and southern boundaries face the East Sea (South China Sea).
This location places Vietnam at a crossroads between mainland Southeast Asia and the maritime routes of the Western Pacific. As a result, the country serves as an important gateway connecting regional economies with major global markets, facilitating trade, transportation, and international cooperation.
Climate and Ecological Advantages
Vietnam’s humid tropical monsoon climate provides favorable conditions for agricultural production. The country is particularly well suited for rice cultivation, industrial crops, aquaculture, and other agricultural activities that contribute significantly to the national economy.
At the same time, this climate also brings challenges. Tropical storms, floods, and other natural hazards regularly affect different parts of the country, requiring ongoing efforts in disaster preparedness and environmental management.
Maritime Location and International Transportation
With its long coastline and proximity to major international shipping lanes in the East Sea, Vietnam enjoys significant advantages in maritime transportation and global trade.
This strategic maritime position supports the development of seaports, logistics networks, and international commerce while also contributing to the country's broader role in regional security and economic connectivity.
Natural Resources
Vietnam's location between the Asian mainland and the Pacific Ocean contributes to its rich natural resource base. The country benefits from diverse ecosystems and abundant resources, including forests, mineral deposits, marine resources, and fertile agricultural land.
These natural assets provide important opportunities for industrial development, resource-based industries, and export-oriented economic growth.
Cultural Influence and International Exchange
Vietnam’s location at the intersection of major cultural spheres has contributed to a rich and diverse cultural heritage. Throughout its history, the country has been influenced by neighboring civilizations, including China and India, as well as by interactions with Western nations.
These cultural exchanges have helped shape Vietnam’s unique identity, blending indigenous traditions with a variety of external influences.
8. Conclusion
Vietnam’s geography, characterized by its strategic location, diverse terrain, and tropical monsoon climate, has played a fundamental role in shaping the nation’s economy, culture, and way of life. Understanding these geographic characteristics is essential not only for appreciating Vietnam’s natural advantages but also for supporting sustainable development across key sectors such as agriculture, tourism, transportation, and environmental conservation. As Vietnam continues to grow and integrate with the global economy, its geographic position remains one of its most valuable assets.
Source: Vietnam's Geography