This population data for Italy was collected from istat.it. I pulled the 2023 data on 2023-APR-07. The data reflects the population of each comune as of JAN-01 of each year. I then wrote code (Java, R) to reformat the data.
Note: There is a new access point for Italian data located at Data Warehouse. This will gradually replace the i.stat system.
Note that some comuni are so small that the government does not show figures for them for fear of making the data personally identifiable. The population for those comuni is listed in my data files as NA. Another reason you will see an NA value is because the comune does not exist as of the pull date, at least by that name. Occasionally comuni are merged together with other comuni to form a new one. Or sometimes a comune is cleaved into parts to form several new comuni.
At the time of this data pull, the data shows 5 super regions, 20 regions, 107 provinces, and 7894 comuni.
There are three files here for each year. The first file has population data for all comuni in Italy (tutti). The second file only includes comuni in the southern super region (sud), Sicilia, and Sardegna AND which had population less than 20,000. The third file includes includes special circustance comuni as explained in the paragraph below. They are all sorted first by region and then by comune population in descending order.
There are comuni which qualify for the 7% tax regime, but are in a special category. The Italian Finance Ministry has a web page about the 7% tax regime and discusses which comuni qualify. It has links to lists of comuni shown in annex 1, 2, and 2-bis. If you click on those links you can see the lists. For your convenience I have collected all the comuni from those annexes into a single list available at the button below.
Note: Please be aware that there is some disagreement about whether the comuni on those annex lists which have population greater than 20,000 qualify for the program. As you can see at the Finance Ministry's web page, those comuni are: Teramo, Ascoli Piceno, Macerata, Spoleto, Reiti, and Fabriano. If you ask different experts, you can get different answers. For example, commercialista Nicolò Bolla claims those comuni qualify for the 7% tax regime. Read all the way down to the Q&A section at the bottom of his page. However, the law firm of Studio Legale Metta claims those comuni do no qualify. I sent an email to the Italian Tax Agency (Agenzia Entrate) asking if those comuni qualify. If I receive an answer, I will update this web page. Meanwhile, I advise you proceed with caution if you plan to reside in those comuni and apply for the 7% tax regime.
These files are in tab separated value (tsv)* format. You should be able to import this data into any spreadsheet easily.
Here is a file for all comuni in Italy covering years 2019..2023. This might be useful to see trends in a comune.
Here is where you can access files I posted previously for 2021 and 2022.
* Why not csv? Yes, csv is more common but also more error prone. If there are any commas in your data, they have to be properly escaped to distinguish them from the commas used as separators. Tabs are much more rare in data.
See also for information on the boundaries of comuni in Italy.