The tourists-per-resident ratio is the number Spain should fear

Is a city with ten million visitors really busier than a town with one million? Not if the first has a huge population and the second has a few thousand people living in its old center. Headline arrivals tell you who is famous. They don't tell you who is struggling.

That is why a recent chart deserves attention. Xataka published a bubble chart titled "The 30 busiest cities for tourism in the EU in 2025," built on Eurostat data on nights spent in tourist accommodation. The takeaway is that the most extreme cases, measured against the number of residents, are in Spain. That fits the broader picture: Eurostat's tourism highlights say Spain was again the most visited EU destination for international tourists in 2024, with 322 million nights in tourist accommodation.

We should be careful about what we claim. We have the chart's framing, not its full dataset, so we won't pretend to rank individual cities. The argument stands anyway.

The ratio is the honest number

Total arrivals measure success from the point of view of an airline, a hotel chain or a tourism ministry. The ratio of visitors to residents measures something else: how much of a place's daily life is given over to people who are passing through. A bakery, a bus line, a stairwell, a rental market. All of them feel a tourist-heavy ratio long before a national statistic does.

This is why we think the per-resident lens is the fairer way to talk about overtourism. A large metropolis can absorb crowds that would flatten a small historic center. Statista has run a similar exercise, estimating tourists per inhabitant from 2019 figures, and the logic is the same. Look at the density of visitors, not the prestige of the destination.

Spain's extremes are a warning, not a trophy

It is tempting for a tourism board to read this chart as a compliment. Look how popular we are. We would read it the opposite way. A country that leads the EU in overnight stays and also hosts the most extreme per-resident cases is running a concentration experiment: put enormous demand into a small number of urban areas and see how long the locals tolerate it.

Our view is that the risk is less about any single summer and more about erosion. When residents feel like extras in their own neighborhood, the authenticity that drew people there in the first place starts to thin out. That is a business problem as much as a social one. It is also a prediction, not a fact, but the pattern looks familiar enough that regulators and tourism boards should not wait for a backlash to act.

Travelers have more power than they think

Waiting for governments to fix this is a weak strategy. The reader can do something useful today.

First, shift your dates. Shoulder seasons spread demand, and a city in autumn or spring is usually a more relaxed place to be, for you and for the people who live there. Check local conditions, calendars and prices before booking, but the principle holds.

Second, choose the lesser-known city. Spain and the rest of Europe are full of places with real heritage, food and landscape that never appear on an arrivals leaderboard. Their charm is not a consolation prize. Often it is the better trip: easier to book, easier to walk, easier to talk to people.

Third, stay longer and spread your spending. We think a visitor who sleeps several nights and eats in neighborhood places tends to leave more of value behind than one who ticks a monument off a list.

Our verdict

Stop reading rankings by volume. Read them by pressure. The tourists-per-resident ratio is imperfect, since data methods vary and, as Statista itself notes, comparing city tourism is challenging. But it asks the right question: who carries the weight of your trip?

Our recommendation is simple. Treat the most crowded places on that chart as a reason to go elsewhere, or at least to go at another time of year. The cities that will deserve your visit in ten years are the ones that still feel lived in.