San Martino Valle Caudina: what to know before buying a home
A municipality in the province of Avellino, Campania. Official data on earthquakes, population, services and transport.
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Search for an address in San Martino Valle Caudina
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 Carlo del Balzo 1, San Martino Valle Caudina.
San Martino Valle Caudina, on the slopes of Partenio
The Valle Caudina is the basin between the Partenio and Taburno mountains that links Irpinia, the Avellino area, to the Sannio around Benevento. San Martino occupies its Irpinian side, resting on the slopes of Partenio at around 300 metres. The town is overlooked by the Pignatelli della Leonessa castle, and above the houses chestnut woods climb towards the mountain. Montesarchio and the villages of the Benevento area are a few minutes away, Avellino and Caserta about forty.
The old centre has stone houses on sloping streets; towards the valley there are small blocks of flats and houses built from the 1970s onwards. For work, many people travel to Benevento, Avellino, Caserta and the Naples area. Prices are low compared with the province of Naples, and declared incomes are close to the Avellino average.
The population is holding steady, which is not a given in Irpinia. Istat, the national statistics office, counted 4,796 residents in 2023, up 1.1% on 2011. San Martino ranks 18 in the province by population. The average age is 45.4, 22.9% are over 65 and foreign residents make up just 2.3%.
Earthquakes come first. The town is in seismic zone 2 under the Civil Protection Department classification, but with a high expected ground acceleration of about 0.209 g; in the province of Avellino, 58 municipalities are in zone 1. For houses in the old centre, ask for the construction date, work done after the 1980 earthquake and the structural records; for blocks of flats, the registered design and inspection certificate.
The second issue is the Partenio slopes: layers of volcanic soil over rock that can slide in heavy rain, plus the gullies running down towards the town. The report checks landslides and flooding at the address with official maps and finds the plot in the Revenue Agency cadastre.
Key points
- Valle Caudina, on the Partenio slopes, with the Pignatelli castle.
- 4,796 residents, up 1.1% since 2011.
- Seismic zone 2, expected acceleration about 0.209 g.
- Partenio slopes: check landslides at the address.
Overview
San Martino Valle Caudina is a municipality in the province of Avellino, in Campania. At the end of 2023 it had 4,796 residents, ranked 18 of 118 municipalities in the province.
Earthquakes
For Italy's Civil Protection Department, San Martino Valle Caudina is in seismic zone 2, a zone where strong earthquakes are possible. Most municipalities in the province (60 of 118) are in the same zone.
In the built-up area, the expected ground shaking (peak ground acceleration, PGA) is about 0.209 g, a medium-high value: the level with a 10% probability of being exceeded in 50 years, on rock.
For anyone buying in San Martino Valle Caudina, 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 grown by 1.1%. The estimated average age is 45 years, in line with the province. 23% of residents are over 65 (the regional figure is 21%). Foreign residents make up 2.3% of the population. On average, a household has 2.2 members.
Income and climate
In tax year 2024, taxpayers in San Martino Valle Caudina declared an average taxable income of 19,625 euros, in line with the province (19,951 euros). The Italian average is 24,895 euros.
San Martino Valle Caudina is in climate zone D, with 1,794 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 315 metres above sea level.
Services
In the official Ministry of Education and Ministry of Health lists, San Martino Valle Caudina has 3 schools and 2 pharmacies. The Overture Maps data also lists 4 grocery shops and supermarkets and 1 sports facility.
The data shows no healthcare facilities within the municipality, against a provincial average of 0.5 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 11.7% of the land in San Martino Valle Caudina, compared with 7.4% in the province and 10.6% 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 one contaminated site, or site still under investigation, in San Martino Valle Caudina. The report tells you whether one is close to the address.
Landslides and flooding
Landslide and flood hazard changes from one street to the next even within San Martino Valle Caudina: 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 Valle Caudina 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 65 inhabited census areas in San Martino Valle Caudina. Half of the residents live in areas scoring 57 or more.
Residents by band
- modest 20.6%
- fair 79.4%
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 064083. The text on this page is generated automatically from the data.