San Martino Alfieri: what to know before buying a home
A municipality in the province of Asti, Piemonte. Official data on earthquakes, population, services and transport.
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Search for an address in San Martino Alfieri
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 Giuseppe Garibaldi 1, San Martino Alfieri.
San Martino Alfieri, the castle and the hills around Asti
The second part of San Martino Alfieri's name comes from the Alfieri family, linked to the castle that stands over the village, surrounded by its park. The municipality lies in the hills of the province of Asti, at around 250 metres, with fields and scattered houses on the slopes. Asti and Alba are the reference towns for work, secondary schools and the hospital, reached by car.
The housing market is made up of detached homes, village houses with a courtyard and the odd farmhouse. With an old building, the roof, damp and the services are what count; with a farmhouse, also whether extensions and outbuildings are authorised, to be compared with the town hall's records. On the slopes the ground is not the same everywhere, and the report measures elevation and slope at the address, checking the official landslide maps.
There were 678 residents in 2023, down 4.8% on the 712 of 2011. The estimated average age is 48.4, almost the same as the province's 47.9; over-65s are 28.0% and foreign residents 6.5%. Average declared income is slightly above the provincial level. Bars and restaurants, 10.32 per 1,000 residents against 5.34 in the province, also serve people from outside.
Seismic hazard is low: San Martino Alfieri is in zone 4 of the Civil Protection classification, along with 112 other municipalities around Asti, while 4 are in zone 3. Expected acceleration is about 0.043 g. In a country house, the likeliest costs are maintenance and energy efficiency.
Revenue Agency (Agenzia delle Entrate) cadastral maps are published: from the address the report finds the land parcel, useful for seeing how much land goes with the house.
Key points
- Hill village near Asti, linked to the Alfieri family's castle.
- 678 residents, down 4.8% since 2011.
- Seismic zone 4, expected acceleration about 0.043 g.
- Bars and restaurants: 10.32 per 1,000 residents.
Overview
San Martino Alfieri is a municipality in the province of Asti, in Piemonte. At the end of 2023 it had 678 residents, ranked 57 of 117 municipalities in the province.
Earthquakes
For Italy's Civil Protection Department, San Martino Alfieri is in seismic zone 4, the lowest-risk zone, where strong earthquakes are very rare. Most municipalities in the province (113 of 117) are in the same zone.
In the built-up area, the expected ground shaking (peak ground acceleration, PGA) is about 0.043 g, a low value: the level with a 10% probability of being exceeded in 50 years, on rock.
In zone 4 the risk is low, but for an older building it is still worth asking about the state of the structure.
Population
Compared with the 2011 census, the resident population has fallen by 4.8%. The estimated average age is 48 years, in line with the province. 28% of residents are over 65 (the regional figure is 27%). Foreign residents make up 6.5% of the population. On average, a household has 2.3 members.
Income and climate
In tax year 2024, taxpayers in San Martino Alfieri declared an average taxable income of 24,993 euros, in line with the province (24,302 euros). The Italian average is 24,895 euros.
San Martino Alfieri is in climate zone E, with 2,510 heating degree days: heating may be switched on from 15 October to 15 April, for up to 14 hours a day. The same table puts the town hall at 257 metres above sea level.
Services
In the official Ministry of Education and Ministry of Health lists, San Martino Alfieri has 1 school. The Overture Maps data also lists 1 grocery shop.
The data shows no pharmacies within the municipality, against a provincial average of 0.4 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 5.8% of the land in San Martino Alfieri, compared with 7.3% in the province and 6.7% in the region. In 2024 built-up land stayed almost the same.
Radon and contaminated sites
San Martino Alfieri is not among the radon priority areas designated by the Regione Piemonte in 2023. According to the ISPRA map, the estimated radon emission in the municipality is low. 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 San Martino Alfieri.
Landslides and flooding
Landslide and flood hazard changes from one street to the next even within San Martino Alfieri: 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 San Martino Alfieri 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 13 inhabited census areas in San Martino Alfieri. Half of the residents live in areas scoring 58 or more.
Residents by band
- fair 57.6%
- good 42.4%
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.
- Radon priority areas (Legislative Decree 101/2020), Regione Piemonte, national list compiled by ARPA Lombardia. Licence Atto pubblico (art. 5 L. 633/1941), 2023.
- Contaminated sites, Regione Piemonte, Anagrafe regionale dei siti contaminati (ASCO). Licence CC BY 4.0, updated to 9 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 005099. The text on this page is generated automatically from the data.