Castel San Giorgio: 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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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 Tenente Bruno Lombardi 1, Castel San Giorgio.
Castel San Giorgio, between the Nocera plain and the hills
Castel San Giorgio is a municipality made up of separate villages. It lies north of Nocera Inferiore in the province of Salerno, with a stretch of flat farmland belonging to the fertile Agro nocerino-sarnese and a hillier part where settlements such as Lanzara climb towards the mountains. Many residents work in Nocera, Salerno or the Naples area.
For getting about, the Naples-Salerno motorway is the key link, with the Nocera exit a few minutes away, along with the railway stations in the area. Buyers mostly find detached houses with land, blocks of flats from recent decades and some older houses in the village centres, which need to be assessed one by one.
The population is young for inland Campania. There were 13,723 residents in 2023, up 2.3% since 2011 according to Istat, the national statistics office; the estimated mean age is 43.1 against 45.2 for the province, and over-65s are 19.2%. Households average 2.65 people and foreign residents are few, 2.6%. Declared incomes are in line with the provincial average.
Castel San Giorgio is in seismic zone 2 of the Civil Protection classification, like 97 municipalities in the province; another 18, towards Irpinia, are in zone 1. The expected ground acceleration in the built-up area is about 0.133 g. The 1980 earthquake caused damage across the whole area and many houses were rebuilt or repaired afterwards, so asking for the paperwork on that work helps you judge the state of the building.
On the slopes above the villages the ground is loose volcanic material, the same that slid down onto the neighbouring towns of Sarno and Siano in 1998. The report checks the official landslide and flood hazard maps at the individual address. The Revenue Agency (Agenzia delle Entrate) publishes the cadastral maps.
Key points
- Villages spread between the Nocera plain and the hills.
- Population up 2.3%, mean age 43.1.
- Seismic zone 2, expected acceleration about 0.133 g.
- Slopes to check for landslides, as in neighbouring towns.
Overview
Castel San Giorgio is a municipality in the province of Salerno, in Campania. At the end of 2023 it had 13,723 residents, ranked 18 of 158 municipalities in the province.
Earthquakes
For Italy's Civil Protection Department, Castel San Giorgio 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 0.133 g, a moderate value: the level with a 10% probability of being exceeded in 50 years, on rock.
For anyone buying in Castel San Giorgio, 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 2.3%. The estimated average age is 43 years, lower than the province average (45). 19% of residents are over 65 (the regional figure is 21%). Foreign residents make up 2.6% of the population. On average, a household has 2.7 members.
Income and climate
In tax year 2024, taxpayers in Castel San Giorgio declared an average taxable income of 20,140 euros, in line with the province (19,912 euros). The Italian average is 24,895 euros.
Castel San Giorgio is in climate zone C, with 1,253 heating degree days: heating may be switched on from 15 November to 31 March, for up to 10 hours a day. The same table puts the town hall at 90 metres above sea level.
Services
In the official Ministry of Education and Ministry of Health lists, Castel San Giorgio has 13 schools and 4 pharmacies. The Overture Maps data also lists 4 grocery shops and supermarkets, 5 healthcare facilities, 4 sports facilities and 3 parks and green areas.
There are 0.3 grocery shops and supermarkets per 1,000 residents, fewer than the province average (0.8).
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 23.8% of the land in Castel San Giorgio, compared with 8.0% in the province and 10.6% in the region. In 2024 built-up land grew by 0.6 hectares.
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 Castel San Giorgio. 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 Castel San Giorgio: 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 Castel San Giorgio 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 61 inhabited census areas in Castel San Giorgio. Half of the residents live in areas scoring 63 or more.
Residents by band
- modest 1.8%
- fair 52.8%
- good 45.4%
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 065034. The text on this page is generated automatically from the data.