Sanza: 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 Sanza
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 Val D'Agri 0, Sanza.
Sanza, below Monte Cervati in the Vallo di Diano
Sanza lies in the southern part of the Vallo di Diano, where the valley floor gives way to the mountains of the Cilento National Park. Behind the village rises Monte Cervati, the highest peak in Campania, and much of the municipal area is woodland, pasture and mountain. The village itself is compact, with stone houses in the old part and newer buildings along the roads leading in.
Like many inland villages in the province of Salerno, it has lost people. Istat, the national statistics office, counts 2,355 residents (2023), down 12.7% from 2,697 in 2011. Over-65s make up 27.0%, against 22.7% across the province, and the average age is 47.5. Foreign residents are 2.6%. Average incomes are well below the provincial level.
Most buyers here are looking at an old house in the centre that needs work, often as a second home or to return to a family village. Look closely at the load-bearing walls, the roof and the wiring and plumbing, and ask for the planning permits for any extensions.
There is a seismic reason too. Sanza is in seismic zone 2, as are 96 other municipalities in the province, according to the Civil Protection classification, and the expected ground acceleration is about 0.154 g. Before buying, find out whether the building has been strengthened and under which permits. On hilly ground like this, the report also checks the official landslide and flood maps for the exact spot.
The Revenue Agency's cadastral maps are available, so the report can find the land parcel from the address.
Key points
- Village in the Vallo di Diano below Monte Cervati
- 2,355 residents, down 12.7% since 2011
- Over-65s at 27.0%, against 22.7% in the province
- Seismic zone 2: check past strengthening work and permits
Overview
Sanza is a municipality in the province of Salerno, in Campania. At the end of 2023 it had 2,355 residents, ranked 77 of 158 municipalities in the province.
Earthquakes
For Italy's Civil Protection Department, Sanza is in seismic zone 2, a zone where strong earthquakes are possible. Most municipalities in the province (97 of 158) are in the same zone.
In the built-up area, the expected ground shaking (peak ground acceleration, PGA) is about 0.154 g, a medium-high value: the level with a 10% probability of being exceeded in 50 years, on rock.
For anyone buying in Sanza, 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 12.7%. The estimated average age is 47 years, higher than the province average (45). 27% of residents are over 65 (the regional figure is 21%). Foreign residents make up 2.6% of the population. On average, a household has 2.3 members.
Income and climate
In tax year 2024, taxpayers in Sanza declared an average taxable income of 15,361 euros, below the provincial average (19,912 euros). The Italian average is 24,895 euros.
Sanza is in climate zone D, with 1,854 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 558 metres above sea level.
Services
In the official Ministry of Education and Ministry of Health lists, Sanza has 4 schools and 1 pharmacy. The Overture Maps data also lists 1 grocery shop and 2 parks and green areas.
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 1.6% of the land in Sanza, 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 contaminated sites in Sanza.
Landslides and flooding
Landslide and flood hazard changes from one street to the next even within Sanza: 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 Sanza 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 19 inhabited census areas in Sanza. Half of the residents live in areas scoring 66 or more.
Residents by band
- modest 2.2%
- fair 35.6%
- good 62.2%
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 065133. The text on this page is generated automatically from the data.