Rome is the most populous city in Italy. With 2.75 million inhabitants, the capital of the country put ahead Milan and Naples. Compared to the number of citizens in 2012, the resident population of Rome increased by over 140,000 individuals. Regional data Rome is located in the center of Italy in the Lazio region. Lazio is the second-largest region in terms of population size after Lombardy. In 2024, the region counts roughly 5.7 million inhabitants, whereas Lombardy has over ten million individuals. The third-largest region is Campania, with 5.6 million people. Naples, the major center of Campania, has around 910,000 inhabitants at the beginning of 2024. Nevertheless, this city was, back in the 19th century, one of the largest cities in Western Europe. Tourism in Rome The Eternal City is also the main tourist destination in Italy and was the eighth most-visited city in Europe. The largest groups of international visitors in Rome came from the United States of America, Japan, and the United Kingdom. Every year, more and more tourists also enjoy the best-known tourist attractions in Rome, like the Colosseum, the Roman Forum, and the Palatine Hill, which together recorded almost ten million visitors in 2022.

Milan, Bologna, Genoa, Florence, and Turin recorded a population increase between 2022 and 2023. In fact, all the other largest municipalities registered a decrease, most prominently in the south and on the islands. However, Naples is the third-largest Italian municipality, after Rome and Milan.

Throughout the early modern period, the largest city in Italy was Naples. The middle ages saw many metropolitan areas along the Mediterranean grow to become the largest in Europe, as they developed into meeting ports for merchants travelling between the three continents. Italy, throughout this time, was not a unified country, but rather a collection of smaller states that had many cultural similarities, and political control of these cities regularly shifted over the given period. Across this time, the population of each city generally grew between each century, but a series of plague outbreaks in the 1600s devastated the populations of Italy's metropolitan areas, which can be observed here. Naples At the beginning of the 1500s, the Kingdom of Naples was taken under the control of the Spanish crown, where its capital grew to become the largest city in the newly-expanding Spanish Empire. Prosperity then grew in the 16th and 17th centuries, before the city's international importance declined in the 18th century. There is also a noticeable dip in Naples' population size between 1600 and 1700, due to an outbreak of plague in 1656 that almost halved the population. Today, Naples is just the third largest city in Italy, behind Rome and Milan. Rome Over 2,000 years ago, Rome became the first city in the world to have a population of more than one million people, and in 2021, it was Italy's largest city with a population of 2.8 million; however it did go through a period of great decline in the middle ages. After the Fall of the Western Roman Empire in 476CE, Rome's population dropped rapidly, below 100,000 inhabitants in 500CE. 1,000 years later, Rome was an important city in Europe as it was the seat of the Catholic Church, and it had a powerful banking sector, but its population was just 55,000 people as it did not have the same appeal for merchants or migrants held by the other port cities. A series of reforms by the Papacy in the late-1500s then saw significant improvements to infrastructure, housing, and sanitation, and living standards rose greatly. Over the following centuries, the Papacy consolidated its power in the center of the Italian peninsula, which brought stability to the region, and the city of Rome became a cultural center. Across this period, Rome's population grew almost three times larger, which was the highest level of growth of these cities.

Rome was the Italian municipality recording the highest number of overnight stays in travel accommodation establishments in 2023. That year, tourist overnight stays in Rome surpassed ** million, exceeding pre-pandemic levels. Venice and Milan followed in the ranking in 2023, with around **** million and **** million overnight stays, respectively.

In 2023, Bologna was the leading connected city in Italy, with a score of **. Milan closely followed, with a score of **. Cagliari, a city in Sardinia, ranked third, with a connected city score of **.

The city of Paris in France had an estimated gross domestic product of 757.6 billion Euros in 2021, the most of any European city. Paris was followed by the spanish capital, Madrid, which had a GDP of 237.5 billion Euros, and the Irish capital, Dublin at 230 billion Euros. Milan, in the prosperous north of Italy, had a GDP of 228.4 billion Euros, 65 billion euros larger than the Italian capital Rome, and was the largest non-capital city in terms of GDP in Europe. The engine of Europe Among European countries, Germany had by far the largest economy, with a gross domestic product of over 4.18 trillion Euros. The United Kingdom or France have been Europe's second largest economy since the 1980s, depending on the year, with forecasts suggesting France will overtake the UK going into the 2020s. Germany however, has been the biggest European economy for some time, with five cities (Munich, Berlin, Hamburg, Stuttgart and Frankfurt) among the 15 largest European cities by GDP. Europe's largest cities In 2023, Moscow was the largest european city, with a population of nearly 12.7 million. Paris was the largest city in western Europe, with a population of over 11 million, while London was Europe's third-largest city at 9.6 million inhabitants.

This statistic depicts the number of smart city projects carried out in selected Italian cities as of 2018. According to data, the city with the largest number of projects was Milan (** projects), followed by the North Italian city of Genoa, with **. Padua ranked third with ** projects.

Frequency of point replacement mutations in HBsAg of strains isolated from pregnant women in the South of Iran.

In 2020, Trento ranked as the most sustainable city in Italy, with a score of ***** points. Reggio-Emilia and Mantova, in the North as well, ranked second and third, respectively, while Cosenza, in the South, followed.

In 1500, the largest city was Paris, with an estimated 225 thousand inhabitants, almost double the population of the second-largest city, Naples. As in 1330, Venice and Milan remain the third and fourth largest cities in Western Europe, however Genoa's population almost halved from 1330 until 1500, as it was struck heavily by the bubonic plague in the mid-1300s. In lists prior to this, the largest cities were generally in Spain and Italy, however, as time progressed, the largest populations could be found more often in Italy and France. The year 1500 is around the beginning of what we now consider modern history, a time that saw the birth of many European empires and inter-continental globalization.

In 2018, most green jobs in Italy were found in the Northern Italian city of Milan. More specifically, the number of green jobs in the city amounted to 63 thousand occupancies. Moreover, Rome and Turin ranked second and third, whereas the Southern Italian city of Naples ranked fourth. Nationwide, the largest number of green jobs were found in the North-West, where over one million positions were related to this field.

Green jobs are jobs which contribute to benefit the environment. For instance, working in the sector of renewable energy or sustainable manufacturing is considered a green job.

This statistic illustrates the top ten cities in Italy in terms of bike usage in 2016. According to the study, the Italian cities where bicycles were most popular were Bolzano and Trento, where ** percent of trips within the urban areas were taken by bike. Ferrara ranked third: in this city, people chose to travel by bike in ** percent of cases.

The largest Western European city in 1200 was Palermo, with 150 thousand inhabitants. This is a great decrease in the number 150 years previously, where the population was 350 thousand. The city of Cordova also decreased by almost 400 thousand in this time, possibly because of the declining Arabian control and influence in the area. Seville is the third largest city on this list, although it's overall population decreased by ten thousand since 1050. The largest cities are generally in Spain or Italy, although the second largest city on this list is Paris, with 110 thousand inhabitants. In the lists that follow, Paris remains at the top as either the largest (1500 and 1650) or second largest (1330 and 1800) city in Western Europe.

Argentina has the largest Italian population outside of Italy, with around 1.17 million Italians residing in the South American country as of 2023. This community represented almost one fifth of all citizens residing outside the Republic, seven million. Germany hosted the second-largest community, with about 900,000 Italians, while in Brazil lived around 790,000 people with Italian citizenship. In total, three million Italians resided in the Americas, whereas 3.5 million in other European countries. In the nineteenth and twentieth centuries, Argentina was one of the main destinations for Italian emigrants, in particular in the early 1900s. Increasing tendency to emigrate  Between 2006 and 2020, the number of Italians living abroad constantly increased. As of 2020, over five million Italians lived outside their homeland. Data related to the educational level of the emigrated population show that one third of the academics decided to leave the country. In 2017, 32.5 percent of Italians holding a university degree did not reside in Italy. Better jobs and lower taxes  When asked about the reasons why leaving their country, the opportunity to pay lower taxes and have better jobs played an important role. Indeed, about 43 percent of Italians declared to be ready to leave Italy for a place where taxes were lower. In addition, roughly 37 percent could leave Italy for better working chances.

London was by far the largest urban agglomeration in the United Kingdom in 2025, with an estimated population of *** million people, more than three times as large as Manchester, the UK’s second-biggest urban agglomeration. The agglomerations of Birmingham and Leeds / Bradford had the third and fourth-largest populations, respectively, while the biggest city in Scotland, Glasgow, was the fifth largest. Largest cities in Europe Two cities in Europe had larger urban areas than London, with Istanbul having a population of around **** million and the Russian capital Moscow having a population of over **** million. The city of Paris, located just over 200 miles away from London, was the second-largest city in Europe, with a population of more than **** million people. Paris was followed by London in terms of population size, and then by the Spanish cities of Madrid and Barcelona, at *** million and *** million people, respectively. The Italian capital, Rome, was the next largest city at *** million, followed by Berlin at *** million. London’s population growth Throughout the 1980s, the population of London fluctuated from a high of **** million people in 1981 to a low of **** million inhabitants in 1988. During the 1990s, the population of London increased once again, growing from ****million at the start of the decade to **** million by 1999. London's population has continued to grow since the turn of the century, and despite declining between 2019 and 2021, it reached *** million people in 2023 and is forecast to reach almost *** million by 2047.

In 2020, Palermo ranked as the less sustainable city in Italy, with a score of ***** points. Ragusa and Massa ranked second and third, respectively, while Alessandria, followed. On the contrary, Trento was the most environmental-friendly city in Italy in 2020.

This statistic illustrates the top ten cities in Italy with the longest bike lane network per capita in 2015. That year, the Italian city with the largest availability of bike lanes was Reggio Emilia, with more than ** meters of bike network per inhabitant. This was almost double the figure for Mantova and Lodi, which ranked second and third respectively, with about **** meters of cycling paths per inhabitant.

In 2024, Russia had the largest population among European countries at ***** million people. The next largest countries in terms of their population size were Turkey at **** million, Germany at **** million, the United Kingdom at **** million, and France at **** million. Europe is also home to some of the world’s smallest countries, such as the microstates of Liechtenstein and San Marino, with populations of ****** and ****** respectively. Europe’s largest economies Germany was Europe’s largest economy in 2023, with a Gross Domestic Product of around *** trillion Euros, while the UK and France are the second and third largest economies, at *** trillion and *** trillion euros respectively. Prior to the mid-2000s, Europe’s fourth-largest economy, Italy, had an economy that was of a similar sized to France and the UK, before diverging growth patterns saw the UK and France become far larger economies than Italy. Moscow and Istanbul the megacities of Europe Two cities on the eastern borders of Europe were Europe’s largest in 2023. The Turkish city of Istanbul, with a population of 15.8 million, and the Russian capital, Moscow, with a population of 12.7 million. Istanbul is arguably the world’s most famous transcontinental city with territory in both Europe and Asia and has been an important center for commerce and culture for over 2,000 years. Paris was the third largest European city with a population of ** million, with London being the fourth largest at *** million.

The statistic shows the audience share of Sanremo Music Festival's third night in Italy from 1987 to 2020. As of the survey period, the third night registering the highest audience share took place in 1987 reaching **** percent of the audience. In 2020, the third night of the festival reached **** percent of the audience. Started in 1951, the Sanremo Music Festival is currently the most popular Italian song competition. Held annually in the Italian city of Sanremo, in Liguria, the festival is broadcasted by RAI, the national public broadcasting company. The format of the Sanremo Music Festival was the main inspiration for the Eurovision Song Contest.

This statistic illustrates the top three international destinations with the largest flight price drop* leaving from Italy between 2016 and 2017. According to the study, the average price of flights from Milan to Havana fell from *** euro to *** euro within a year. Similarly, the price of flights to Miami fell from *** to *** euro. The third destination with the biggest price drop was Phuket City in Thailand.