Italy
Sardegna
Cagliari
Decimomannu is a comune in the provincia of Cagliari, Sardegna with a population of 8,358 as of 2025.
Contact
To request vital records from the anagrafe (records office), write to the PEC address or email below. Include the full name, approximate date, and record type in Italian.
Map
Località
Each Italian comune is divided into località (localities), which include centri abitati (populated centers) and nuclei abitati (smaller settlements).
Centro abitato
AltitudePopulation- Decimomannu10m7,789
Nuclei abitati
AltitudePopulation- Su Meriagu16m46
- Is Orrus236m39
- Villaggio Azzurro II11m0
Population and Migration
This chart shows annual resident population and international migration (2001 to present). Not all data is available for every period, so gaps are normal.
The population has grown 508% since 1861.
Cittadinanza per discendenza
Could a line from Decimomannu qualify for Italian citizenship?
If your ancestor was born in Decimomannu, Italy may recognize you as a citizen under jure sanguinis (citizenship by descent).
The birthplace alone does not decide it. Each generation between that ancestor and you does: who naturalized, and when. Since the 2025 law, the number of generations matters too.
The checker goes back through your line one generation at a time. It is not legal advice, and it does not search for records.
Check your lineItalian-born ancestor
Your ancestor from Decimomannu
Born in Decimomannu (CA), Italy
Each generation between
Name and dates
Did this person naturalize before their child was born?
You
A likely outcome
and the documents your line would need
Not ready to start? Get an email when the citizenship rules change.