Regional surname distribution
Castagno Surname in Italy
The Castagno surname is recorded for 1,855 people across 13 Italian regions. The strongest regional presence is in Piemonte.
Regional distribution in Italy
This page shows where the Castagno surname is more or less present across Italian regions. Regional patterns are useful as orientation clues and should not be read as proof of a single family origin.
| Region | People | Share |
|---|---|---|
| Piemonte | 1,433 | 77.3% |
| Campania | 218 | 11.8% |
| Liguria | 89 | 4.8% |
| Lombardia | 31 | 1.7% |
| Lazio | 23 | 1.2% |
| Sicilia | 14 | 0.8% |
| Calabria | 10 | 0.5% |
| Valle d'Aosta | 8 | 0.4% |
| Emilia-Romagna | 6 | 0.3% |
| Molise | 6 | 0.3% |
Castagno Surname Regional Distribution Map in Italy
This map shows the Italian areas where the Castagno surname is more or less present. Warmer colors indicate stronger presence, while cooler colors indicate lighter presence.
How to read these data
The regional concentration in Piemonte can help guide future genealogy research, especially when combined with family documents, immigration records, or a known ancestral town. Regional patterns are best read as orientation clues, not as proof of a single family origin.
Have the Castagno surname in your family? We can help verify the likely town of origin through Italian civil and parish records. Request a surname origin research check or contact Ciao Genealogy.
