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Hải Dương, 
Vietnam
323,442 people lived in Hải Dương in 2025. It is the 1776th largest of the world's 12,138 cities, and the 14th largest in Vietnam.
That figure counts the whole built-up area, not the area Hải Dương governs, so it may be far from the number the city publishes about itself. How the UN measures a city.
Verified 2026-09-30 · 73 canaries
People · every five years · 1975 to 2050
How Hải Dương grew
Count 10 people in Hải Dương in 1975 and the same count gives 23.3 in 2025.
On the UN's projection it will have 309,675 people in 2050. It passed 250,000 people between 2000 and 2005.
projected (after 2025) · how sure the UN is: high moderate low
How to read this: one column every five years, 1975 to 2050; its height is the number of people. Hatched columns are the UN's projection. The thin strip beneath says how sure the UN is of each figure: the stronger the colour, the surer. A blank means the place was not on the UN's list of cities that year.
People · your family's years · 1975 to 2050
Hải Dương through your family’s years
Put in the years your family were born. You’ll see how many people lived in Hải Dương in each of those years, and when each of them turned 30.
Vietnam · every city · 2025
Where it is
How to read this: Hải Dương is the dot in colour with a ring around it. The grey dots are the other cities of Vietnam in 2025, 137 in all, led by Ho Chi Minh City, each drawn with an area that matches its people. Countries next door are outlines only.
Area and built-up land · km²
How much land it covers
In 2025, Hải Dương covered 75 km², and buildings, roads and other built-up land covered 14 km² of it. That is 43 m² of built-up land for each person, about a square 7 by 7 metres. Since 1975, its built-up land has grown to 7 times its size, and its people are 2.3 times as many.
How to read this: the outer pale square stands for all the land the city covers, and the solid square inside it for the part with buildings, roads and the like on it. All three squares share a scale, so you can compare them by eye. A hatched one is a year the UN has projected.
Of every 100 people in Vietnam
Its share of Vietnam
Of every 1,000 people in Vietnam in 2025, 3 lived in Hải Dương, which is 323,442 people.
How to read this: shrink Vietnam to 1,000 people and this is what you get. The coloured squares are the ones who would live in Hải Dương; the grey ones are everybody else, in other cities, in towns and out in the country.
Ranked by people · 2025
Cities of a similar size
In the world, 2025
- 1772 Montpellier France324,059
- 1773 Lieshan China323,702
- 1774 Bodeh Indonesia323,511
- 1775 Huangshan China323,492
- 1776 Hải Dương323,442
- 1777 Lucena Philippines323,308
- 1778 Valladolid Spain323,201
- 1779 Buffalo United States322,892
- 1780 Parma United States322,420
In Vietnam, 2025
- 1273 Tây Ninh437,816
- 1384 Huế408,692
- 1602 Vinh355,643
- 1620 Nam Định353,044
- 1776 Hải Dương323,442
- 1792 Quảng Ngãi320,907
- 1814 Buôn Ma Thuột316,052
- 1944 Quy Nhơn297,184
- 2027 Vinh Long287,685
How to read this: the figure in front of a name is where that city stands among the 12,138 cities the UN counted in 2025, and each bar is its people, on one scale per list. Numbers are missing where a city has fewer than 300,000 people and so has no page of its own.
Apparatus
Sources and method
The figures for Hải Dương are the UN's own, at five-year steps: an estimate for each of 1975 to 2025, then projection to 2050. Projected years are drawn hatched, and the UN publishes no range of uncertainty for a city. What a city means here, how the UN measures one, and why that number can differ from the one Hải Dương publishes about itself: how the figures here are put together.
Sources: UN WUP 2025 · Natural Earth · flag-icons. Every source, its licence and how to cite it →
Verified 2026-09-30 · 73 canaries