Italy
Emilia-Romagna
Bologna
Castel Guelfo di Bologna is a comune in the provincia of Bologna, Emilia-Romagna with a population of 4,486 as of 2025. Between 1830 and 1912, at least 15 passengers departing from Castel Guelfo di Bologna arrived in the United States. The comune was previously known as Castel Guelfo.
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 Gramsci, 10
40023 Castel Guelfo di Bologna
Map
Historical Names
Castel Guelfo→Castel Guelfo di Bologna
Changed on December 16, 1876
Località
Each Italian comune is divided into località (localities), which include centri abitati (populated centers) and nuclei abitati (smaller settlements).
Centri abitati
AltitudePopulation- Castel Guelfo di Bologna32m2,727
- Crocetta23m134
- La Billa18m15
Nuclei abitati
AltitudePopulation- Via Larga36m185
- San Martino29m61
- Picchio38m29
- Fantuzza18m24
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 29% since 1951. US arrivals peaked in 1906 with 15 recorded passengers. Since 2001, net international immigration has added the equivalent of 7% of the current population.
Total US arrivals
15
1830–1912
Peak year
1906
15 arrivals
Cittadinanza per discendenza
Could a line from Castel Guelfo di Bologna qualify for Italian citizenship?
Between 1830 and 1912, at least 15 passengers from Castel Guelfo di Bologna arrived in the United States. Arrivals peaked in 1906. 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 Castel Guelfo di Bologna
Born in Castel Guelfo di Bologna (BO), 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
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Top Emigrant Cognomi
Most common cognomi (family names) among emigrants from Castel Guelfo di Bologna recorded in US arrivals, 1830 to 1912.
Notable People
People born in Castel Guelfo di Bologna.