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Hayfan, 
Yemen
176,151 people lived in Hayfan in 2025. It is the 3433rd largest of the world's 12,138 cities, and the 18th largest in Yemen.
The UN measures every city in the world the same way, by where the buildings are rather than where the boundary runs, so this figure and Hayfan's own can differ widely. What counts as a city here.
Verified 2026-09-30 · 73 canaries
People · every five years · 1975 to 2050
How Hayfan grew
Where Hayfan had 10 people in 2005, it had 22.9 in 2025.
On the UN's projection it will have 339,061 people in 2050. On the UN's projection it passes 250,000 people between 2035 and 2040. The UN first counts it as a city in 2005, when it passed 50,000 people.
projected (after 2025) · how sure the UN is: high moderate low
How to read this: read it left to right, 1975 to 2050, one column every five years, the height being people. Hatching marks the projected years. Below, a strip of the UN's confidence: strong colour where the census maps are recent and detailed, pale where they are not, blank where the place was not counted as a city.
People · your family's years · 1975 to 2050
Hayfan through your family’s years
Put in the years your family were born. You’ll see how many people lived in Hayfan in each of those years, and when each of them turned 30.
Yemen · every city · 2025
Where it is
How to read this: Hayfan is the dot in colour with a ring around it. The grey dots are the other cities of Yemen in 2025, 111 in all, led by Sana'a, 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, Hayfan covered 24 km², and buildings, roads and other built-up land covered 0.1 km² of it.
How to read this: each pale square is the city's whole area, the strong square inside it the part that is built on; one scale for all three, so a bigger square is more land. Hatched is the UN's projection.
Of every 100 people in Yemen
Its share of Yemen
Of every 1,000 people in Yemen in 2025, 4 lived in Hayfan, which is 176,151 people.
How to read this: 1,000 squares, one for every 1,000th person in Yemen; the coloured squares live in Hayfan. The grey rest live in other cities, in towns or in the countryside.
Ranked by people · 2025
Cities of a similar size
In the world, 2025
- 3418 Lwambo Democratic Republic of the Congo176,648
- 3422 Nkongsamba Cameroon176,511
- 3423 Madhabpur Bangladesh176,480
- 3428 Islampur India176,380
- 3433 Hayfan176,151
- 3434 Layyah Pakistan176,125
- 3451 Pingtung City Taiwan175,377
- 3459 Kitenge Democratic Republic of the Congo174,943
- 3485 Bukoba Tanzania173,889
In Yemen, 2025
- 2940 Bajil202,715
- 3053 Bayt Sa`dan196,086
- 3150 Al `Udayn190,661
- 3190 Ar Rijad188,715
- 3433 Hayfan176,151
- 3631 Zalmat Hubaysh166,653
- 3800 Ash Shajarah159,506
- 4034 Mawza`150,293
- 4339 Manazil Baradan140,682
How to read this: names are in order of size, the leading number being each city's rank among all 12,138 in 2025; the bars share a scale within a list. A jump in the ranks means a city under 300,000 people, which is not given a page here.
Apparatus
Sources and method
The figures for Hayfan are the UN's own, at five-year steps: an estimate for each of 2005 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 Hayfan 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