Quick answerHai Phong is a city in Vietnam, with 4,664,124 people inside the city limits in 2025. It is best known for the Port of Hai Phong, the Cát Bà Island and the Đồ Sơn Beach. Its official language is Vietnamese, and its currency is the Vietnamese đồng.
Hai Phong is the third-largest city in Vietnam, with about 4.7 million people in the municipality and about 2.3 million in the urban area (2025). It stands at the mouth of the Cấm River and is the main port of northern Vietnam.
Key facts
| Country | Vietnam |
|---|---|
| Population (city) | 4,664,124 (2025) |
| Time zone | Asia/Ho_Chi_Minh |
| Language | Vietnamese |
| Currency | Vietnamese đồng (VND, ₫) |
| Coordinates | 20.865139° N, 106.683833° E |
Overview
Hai Phong is a centrally-governed city on the north-eastern coast of Vietnam, at the mouth of the Cấm River on the Gulf of Tonkin. The municipality covers 3,194.72 square kilometres and had 4,664,124 residents in 2025, after Hải Dương province was merged into it, with 2,346,921 people in the urban area. It is the third-largest city in Vietnam and includes Cát Bà Island and Bạch Long Vĩ Island.
Hai Phong has the historical distinction of being the first city in both Vietnam and mainland South-East Asia to be electrified. It grew as a French colonial port in the 19th century and became the main port of northern Vietnam, with the Port of Hai Phong on the Cấm River handling much of the north's trade. During the Vietnam War its harbour was mined by the United States in 1972.
Today Hai Phong is an industrial centre of the north, with shipbuilding, steel and electronics, and its Cat Bi International Airport serves the Red River Delta. Its landmarks include the Hai Phong Opera House, the Du Hang Pagoda, Đồ Sơn Beach and Cát Bà Island, in Ha Long Bay, and the city is known as the Flamboyant City for its red-flowering trees.
What Hai Phong is known for
- Port of Hai Phong
- Cát Bà Island
- Đồ Sơn Beach
- Hai Phong Opera House
- Flamboyant City
- Cat Bi Airport
Landmarks
- Hai Phong Opera House
- Du Hang Pagoda
- Cát Bà Island
- Đồ Sơn Beach
- Hai Phong Port
- Lê Chân Statue
- Bạch Long Vĩ Island
Frequently asked questions
What is the population of Hai Phong?
About 4.7 million people live in the Hai Phong municipality (4,664,124 in 2025). The urban area had about 2.3 million people in 2025. That makes Hai Phong the third-largest city in Vietnam, after Ho Chi Minh City and Hanoi, and the main port city of the north.
Where is Hai Phong located?
Hai Phong is on the north-eastern coast of Vietnam, at the mouth of the Cấm River on the Gulf of Tonkin, east of Hanoi. It is the main port of northern Vietnam, famous for Cát Bà Island, Đồ Sơn Beach and its flamboyant trees. Its coordinates are 20.87° N, 106.68° E.
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Keep exploring
- Vietnam — the country Hai Phong is in
- Ho Chi Minh City — another city in Vietnam
- Hanoi — another city in Vietnam
- Da Nang — another city in Vietnam
- All cities in Vietnam
- All countries — the full list
Sources & last updated
Last updated: . Figures are shown with their year; where sources disagree, the value is left out rather than estimated.