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Zaragoza, 
Spain
585,533 people lived in Zaragoza in 2025. It is the 934th largest of the world's 12,138 cities, and the 6th largest in Spain.
Like every city on this site, Zaragoza is counted as a built-up area seen from above rather than as a city government's territory. Why that changes the number.
Verified 2026-09-30 · 73 canaries
People · every five years · 1975 to 2050
How Zaragoza grew
Count 10 people in Zaragoza in 1975 and the same count gives 13.1 in 2025.
On the UN's projection it will have 519,783 people in 2050.
projected (after 2025) · how sure the UN is: high moderate low
How to read this: each column is one of the UN's five-yearly estimates, 1975 through 2050, and taller means more people. Where a column is hatched the year has not happened yet. The strip under the columns is the UN's own confidence in each figure, palest where it is least sure; where it is blank the city was not on the list at all.
People · your family's years · 1975 to 2050
Zaragoza through your family’s years
Put in the years your family were born. You’ll see how many people lived in Zaragoza in each of those years, and when each of them turned 30.
Spain · every city · 2025
Where it is
How to read this: Zaragoza is the dot in colour with a ring around it. The grey dots are the other cities of Spain in 2025, 84 in all, led by Madrid, 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, Zaragoza covered 65 km², and buildings, roads and other built-up land covered 14 km² of it. That is 24 m² of built-up land for each person, about a square 5 by 5 metres. Since 1975, its built-up land has grown by 74%, and its people have grown by 31%.
How to read this: pale is the whole of the city's land; the stronger square inside it is what is actually built on. The three are drawn to the same scale, so a larger square really is more land, and hatching means the year is the UN's projection rather than a count.
Of every 100 people in Spain
Its share of Spain
Of every 100 people in Spain in 2025, 1 lived in Zaragoza, which is 585,533 people.
How to read this: 100 squares stand for everyone in Spain, one square for every 100th person. Count the coloured ones and you have Zaragoza's share; the grey remainder live somewhere else in the country.
Ranked by people · 2025
Cities of a similar size
In the world, 2025
- 930 Deoria India586,987
- 931 Kuching Malaysia586,880
- 932 Izhevsk Russia586,811
- 933 Yenagoa Nigeria586,393
- 934 Zaragoza585,533
- 935 Loudi China585,521
- 936 Cangzhou China585,507
- 937 Adama Ethiopia584,854
- 938 Ujjain India583,405
In Spain, 2025
- 114 Barcelona3,982,704
- 366 Valencia1,390,045
- 721 Bilbao741,795
- 769 Seville699,504
- 934 Zaragoza585,533
- 1057 Málaga521,854
- 1173 Palma de Mallorca473,499
- 1428 Alicante397,948
- 1489 Las Palmas de Gran Canaria381,670
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 Zaragoza 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 Zaragoza 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