Topics
Naples, 
Italy
2,767,923 people lived in Naples in 2025. It is the 181st largest of the world's 12,138 cities, and the largest in Italy.
This is the UN's built-up area, drawn from satellite pictures and census maps rather than from the city limits, and the two can be a long way apart. The rule behind it.
Verified 2026-09-30 · 73 canaries
People · every five years · 1975 to 2050
How Naples grew
Where Naples had 10 people in 1975, it had 10.7 in 2025.
On the UN's projection it will have 2.4 million 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
Naples through your family’s years
Put in the years your family were born. You’ll see how many people lived in Naples in each of those years, and when each of them turned 30.
Italy · every city · 2025
Where it is
How to read this: Naples is the dot in colour with a ring around it. The grey dots are the other cities of Italy in 2025, 95 in all, 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, Naples covered 539 km², and buildings, roads and other built-up land covered 129 km² of it. That is 47 m² of built-up land for each person, about a square 7 by 7 metres. Since 1975, its built-up land has grown by 32%, and its people have grown by 7%.
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 Italy
Its share of Italy
Of every 100 people in Italy in 2025, 5 lived in Naples, which is 2.8 million people.
How to read this: 100 squares, one for every 100th person in Italy; the coloured squares live in Naples. 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
- 177 Tasikmalaya Indonesia2,827,255
- 178 Dalian China2,796,248
- 179 Yogyakarta Indonesia2,793,747
- 180 Agra India2,786,762
- 181 Naples2,767,923
- 182 Conacry Guinea2,727,684
- 183 Essen Germany2,717,087
- 184 Cali Colombia2,700,232
- 185 Guiyang China2,686,949
In Italy, 2025
- 181 Naples2,767,923
- 194 Milan2,599,022
- 207 Rome2,376,474
- 447 Turin1,150,975
- 812 Palermo667,442
- 1042 Genoa532,509
- 1229 Catania453,376
- 1253 Bologna443,849
- 1298 Florence430,806
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 Naples 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 Naples 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