Sant'Alfio: what to know before buying a home
A municipality in the province of Catania, Sicilia. Official data on earthquakes, population, services and transport.
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Search for an address in Sant'Alfio
The report looks at the exact point: landslide and flood risk, seismic zone, price per square metre for the area, services and nearby stops.
For example: Via Catania 1, Sant'Alfio.
Sant'Alfio, on the eastern slopes of Etna
The Hundred Horse Chestnut, the Castagno dei Cento Cavalli, a centuries-old tree known across Sicily, stands within Sant'Alfio, on the eastern slopes of Mount Etna. The village is at around five hundred metres, among vineyards, chestnut woods and orchards climbing towards the volcano, with the Ionian Sea visible below towards Giarre and Riposto. Catania is within driving distance for work, the university and hospitals.
Traditional houses are built of lava stone, with thick walls and clay tile roofs; alongside them are more recent villas and country houses, often with land. On a volcanic hillside the exact location matters a lot: slope, distance from streams and road access should be looked at plot by plot, and the report reads them for the address together with the official landslide and flood maps.
On the eastern side of Etna, earthquakes are a real consideration. Sant'Alfio is in seismic zone 2, like 54 of the 58 municipalities in the province of Catania, with an expected ground acceleration of about 0.224 g. For a masonry building, ask whether there has been any seismic upgrading; for a reinforced concrete house, the design year and the structural sign-off.
Istat, the national statistics office, counted 1,520 residents in 2023, down 6.8% since 2011. The average age is 46.2 against 44.2 for the province, and over-65s make up 24.2%. Foreign residents account for 2.8%. Declared incomes are below the provincial average.
The Revenue Agency (Agenzia delle Entrate) publishes the cadastral maps and the report reaches the land parcel from the address, including farmland with a rural building.
Key points
- Eastern slopes of Etna, home of the Hundred Horse Chestnut.
- Seismic zone 2, expected acceleration about 0.224 g.
- Lava stone houses and villas with land.
- Population down 6.8% since 2011.
Overview
Sant'Alfio is a municipality in the province of Catania, in Sicilia. At the end of 2023 it had 1,520 residents, among the smallest in the province (57 of 58).
Earthquakes
For Italy's Civil Protection Department, Sant'Alfio is in seismic zone 2, a zone where strong earthquakes are possible. Most municipalities in the province (54 of 58) are in the same zone.
In the built-up area, the expected ground shaking (peak ground acceleration, PGA) is about 0.224 g, a medium-high value: the level with a 10% probability of being exceeded in 50 years, on rock.
For anyone buying in Sant'Alfio, the building matters a great deal: ask for the design year, whether it met the 2008 seismic standards, and whether any seismic retrofit has been carried out.
Population
Compared with the 2011 census, the resident population has fallen by 6.8%. The estimated average age is 46 years, higher than the province average (44). 24% of residents are over 65 (the regional figure is 23%). Foreign residents make up 2.8% of the population. On average, a household has 2.3 members.
Income and climate
In tax year 2024, taxpayers in Sant'Alfio declared an average taxable income of 17,582 euros, below the provincial average (20,793 euros). The Italian average is 24,895 euros.
Sant'Alfio is in climate zone D, with 1,440 heating degree days: heating may be switched on from 1 November to 15 April, for up to 12 hours a day. The same table puts the town hall at 531 metres above sea level.
Services
In the official Ministry of Education and Ministry of Health lists, Sant'Alfio has 3 schools and 1 pharmacy. The Overture Maps data also lists 1 grocery shop.
The data shows no healthcare facilities within the municipality, against a provincial average of 0.7 per 1,000 residents.
Public transport
We do not yet have open public transport timetables for this municipality: the report says so explicitly, without inventing distances.
How built-up it is
Buildings, roads, car parks and other sealed surfaces cover 4.0% of the land in Sant'Alfio, compared with 8.0% in the province and 6.6% in the region. In 2024 built-up land stayed almost the same.
Radon and contaminated sites
According to the ISPRA map, the estimated radon emission in the municipality is medium. Radon varies from building to building and can only be known by measuring it, especially on ground floors and in basements.
Official databases list no contaminated sites in Sant'Alfio.
Landslides and flooding
Landslide and flood hazard changes from one street to the next even within Sant'Alfio: the report checks the address against the ISPRA maps.
House prices
The Revenue Agency's price ranges per square metre (OMI) apply to zones, not to whole municipalities: the report gives the range for the address's zone.
Land registry
The cadastral maps for Sant'Alfio are public: from the address the report finds the sheet and parcel number.
Liveability area by area
The Vicinalia liveability index runs from 0 to 100 and looks at the place, not the people who live there: services within walking distance, transport, green space, natural hazards, air, quiet, buildings and connection. Here it is worked out at the centre of each of the 11 inhabited census areas in Sant'Alfio. Half of the residents live in areas scoring 65 or more.
Residents by band
- fair 40.6%
- good 59.4%
Vicinalia index by census area, licence CC BY-SA 4.0. Data: IdroGEO ISPRA (2026), Istat, INGV, EEA, AGCOM, Overture Maps and OpenStreetMap.
The colour is the value at the centre of the area. For an exact address, search for it above: the free check looks at that exact point. How the index is worked out
Data sources
- Seismic classification of municipalities, Dipartimento della Protezione Civile. Licence CC BY 4.0, updated to 2025-05.
- MPS04 seismic hazard model, INGV. Licence CC BY 4.0, 2004 model.
- Data by census section, Istat. Licence CC BY 4.0, residents at the end of 2023, compared with the 2011 census.
- Places, Overture Maps Foundation. Licence CDLA Permissive 2.0 and others depending on provider, release 2026-10-21.0.
- Income and main IRPEF variables by municipality, MEF, Dipartimento delle Finanze. Licence CC BY 3.0 IT, tax year 2024.
- Climate zones and heating degree days of municipalities (Presidential Decree 412/1993, Annex A), Normattiva. Licence CC BY 4.0, current text.
- Land take, territorial dynamics and ecosystem services, ISPRA e SNPA. Licence CC BY 4.0, 2024 data.
- Predictive radon map by municipality, ISPRA. Licence CC BY 4.0, version 2022-11.
- Contaminated sites, ISPRA, MOSAICO - Banca dati nazionale dei siti oggetto di procedimento di bonifica. Licence CC BY 4.0, updated to 12 November 2026.
- Liveability index by census area, Vicinalia, from the data in the report sections. Licence CC BY-SA 4.0, worked out on 30 September 2026.
- List of Italian municipalities, Istat. Licence CC BY 4.0, updated to 21 February 2026.
ISTAT code 087046. The text on this page is generated automatically from the data.