Italy
Lazio
Roma
Monte Porzio Catone is a comune in the provincia of Roma, Lazio with a population of 8,579 as of 2025. Between 1830 and 1912, at least 11 passengers departing from Monte Porzio Catone arrived in the United States. The comune was previously known as Monte Porzio.
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.
Address
Via Roma 5
00040 Monte Porzio Catone
Map
Historical Names
Monte Porzio→Monte Porzio Catone
Changed on February 1, 1873
Località
Each Italian comune is divided into località (localities), which include centri abitati (populated centers) and nuclei abitati (smaller settlements).
Centri abitati
AltitudePopulation- Monte Porzio Catone451m6,928
- Armetta320m1,011
Nuclei abitati
AltitudePopulation- Pratone-Belvedere497m209
- San Marco310m104
- Selve di Mondragone375m55
Population and Migration
This chart shows annual resident population, US arrivals (1830 to 1912), and international migration (2001 to present). Not all data is available for every period, so gaps are normal.
The population has grown 179% since 1951. US arrivals peaked in 1900 with 11 recorded passengers.
Total US arrivals
11
1830–1912
Peak year
1900
11 arrivals
Cittadinanza per discendenza
Could a line from Monte Porzio Catone qualify for Italian citizenship?
Between 1830 and 1912, at least 11 passengers from Monte Porzio Catone arrived in the United States. Arrivals peaked in 1900. If one of them is your ancestor, 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 Monte Porzio Catone
Born in Monte Porzio Catone (RM), Italy
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Top Emigrant Cognomi
Most common cognomi (family names) among emigrants from Monte Porzio Catone recorded in US arrivals, 1830 to 1912.
- 1.Angimo1
- 2.Bagnetti1
- 3.Carlone1
- 4.Castani1
- 5.Crisante1
- 6.De maschio1
- 7.Esposito1
- 8.Federici1
- 9.Maggiolo1
- 10.Testanetta1
Notable People
People born in Monte Porzio Catone.