Santomenna: what to know before buying a home
A municipality in the province of Salerno, Campania. Official data on earthquakes, population, services and transport.
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Search for an address in Santomenna
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 Roma 1, Santomenna.
Santomenna, the upper Sele valley on the edge of Irpinia
Santomenna lies in the upper Sele valley, in the inland part of the province of Salerno that borders Irpinia. The village is at around 540 metres, between wooded slopes and fields, and looks to the larger towns of the valley for work, secondary schools and hospital. To reach Salerno you head down to the plain and the motorway.
This is one of the areas struck by the 1980 earthquake, and many houses were rebuilt or strengthened in the following years. That is what matters for a buyer: when and how the work was done, whether there are structural sign-off certificates and whether the building was brought up to standard. Santomenna is in seismic zone 1 on the Civil Protection Department's scale, the highest, with 17 other municipalities in the province, while 97 are in zone 2. Expected ground acceleration in the built-up area is about 0.262 g.
Istat, the national statistics office, recorded 388 residents in 2023, 18.0% fewer than in 2011. The estimated average age is 49.6, against 45.2 for the province, and over-65s make up 29.1%, above the provincial 22.7%. Households are small, 1.85 people on average.
Declared incomes are below the provincial average and the market is small: few sales, family homes, some rebuilt properties in good condition. It is climate zone D, with cool winters.
Revenue Agency (Agenzia delle Entrate) cadastral data are available and the report reaches the land parcel. On the slopes, the official landslide maps for the exact address are what count.
Key points
- Village in the upper Sele valley, bordering Irpinia.
- Seismic zone 1, the highest, acceleration about 0.262 g.
- 388 residents in 2023, down 18.0% since 2011.
- Homes rebuilt after 1980: ask for certificates and records of the work.
Overview
Santomenna is a municipality in the province of Salerno, in Campania. At the end of 2023 it had 388 residents, among the smallest in the province (154 of 158).
Earthquakes
For Italy's Civil Protection Department, Santomenna is in seismic zone 1, the highest-risk zone, where very strong earthquakes are possible. Only 18 of 158 municipalities in the province are in zone 1.
In the built-up area, the expected ground shaking (peak ground acceleration, PGA) is about 0.262 g, a high value: the level with a 10% probability of being exceeded in 50 years, on rock.
For anyone buying in Santomenna, 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 18.0%. The estimated average age is 50 years, higher than the province average (45). 29% of residents are over 65 (the regional figure is 21%). Foreign residents make up 1.5% of the population. On average, a household has 1.8 members.
Income and climate
In tax year 2024, taxpayers in Santomenna declared an average taxable income of 13,194 euros, below the provincial average (19,912 euros). The Italian average is 24,895 euros.
Santomenna is in climate zone D, with 1,989 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 540 metres above sea level.
Services
In the official Ministry of Education and Ministry of Health lists, Santomenna has 1 school and 1 pharmacy.
The data shows no grocery shops and supermarkets within the municipality, against a provincial average of 0.8 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 Santomenna, compared with 8.0% 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 no open contaminated sites in Santomenna; one has been cleaned up or closed.
Landslides and flooding
Landslide and flood hazard changes from one street to the next even within Santomenna: 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 Santomenna 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 8 inhabited census areas in Santomenna. Half of the residents live in areas scoring 58 or more.
Residents by band
- fair 100.0%
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 065131. The text on this page is generated automatically from the data.