Castellammare di Stabia: what to know before buying a home
A municipality in the province of Napoli, Campania. Official data on earthquakes, population, services and transport.
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Search for an address in Castellammare di Stabia
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: Strada Napoli 77, Castellammare di Stabia.
Castellammare di Stabia, spas, shipyard and Monte Faito
Castellammare di Stabia closes the Bay of Naples to the south, where the coast turns towards the Sorrento peninsula and Monte Faito drops almost to the sea. A cable car climbs from the town to the top of the Faito, and the shipyard on the harbour has been building ships for more than two centuries. The name comes from ancient Stabiae, buried with Pompeii by the eruption of AD 79: the Roman villas can be visited on the Varano hill.
It is also a town of mineral waters, with dozens of different springs that gave rise to its spas. The old centre, squeezed between sea and hill, has historic palazzi, alleys and social housing; above it, towards Scanzano and the lower slopes of the Faito, homes climb the hillside along steep roads. For Naples and Sorrento there is the Circumvesuviana railway, and the Sorrento coast road starts right here.
The population is falling: 62,471 residents in 2023, 5.3% fewer than in 2011, according to Istat, the national statistics office. The average age is 43.9 and over-65s make up 21.8%, slightly above the province; foreign residents account for 2.1%. There are 42 supermarkets on record, 0.67 per 1,000 residents against 0.58 across the province.
Compared with most of the Naples area, earthquake hazard is lower. Castellammare is one of 16 municipalities in the province in seismic zone 3, while 76 are in the more hazardous zone 2, and expected ground acceleration is about 0.116 g. In the old centre's palazzi it is still worth asking about the state of walls, floors and roofs and any work already done.
The hazard to watch is a different one. On the slopes of the Faito and the surrounding hills, landslides and mudflows after heavy rain are a real danger, and near the mouths of the streams flooding matters too: both are checked for the address.
Key points
- Spas, shipyard, the Faito cable car and the villas of Stabiae.
- 62,471 residents, down 5.3% since 2011.
- Seismic zone 3, one of only 16 in the province.
- Landslides on the Faito slopes: check the address.
Overview
Castellammare di Stabia is a municipality in the province of Napoli, in Campania. At the end of 2023 it had 62,471 residents, among the most populous in the province (6 of 92).
Earthquakes
For Italy's Civil Protection Department, Castellammare di Stabia is in seismic zone 3, a zone where strong earthquakes are possible but rare. Only 16 of 92 municipalities in the province are in zone 3.
In the built-up area, the expected ground shaking (peak ground acceleration, PGA) is about 0.116 g, a moderate value: the level with a 10% probability of being exceeded in 50 years, on rock.
Even in zone 3, seismic standards apply to new buildings: for an older building, ask about the design year and any structural work.
Population
Compared with the 2011 census, the resident population has fallen by 5.3%. The estimated average age is 44 years, in line with the province. 22% of residents are over 65 (the regional figure is 21%). Foreign residents make up 2.1% of the population. On average, a household has 2.6 members.
Income and climate
In tax year 2024, taxpayers in Castellammare di Stabia declared an average taxable income of 21,797 euros, in line with the province (21,545 euros). The Italian average is 24,895 euros.
Castellammare di Stabia is in climate zone C, with 1,095 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 6 metres above sea level.
Services
In the official Ministry of Education and Ministry of Health lists, Castellammare di Stabia has 53 schools and 20 pharmacies. The Overture Maps data also lists 42 grocery shops and supermarkets, 45 healthcare facilities, 40 sports facilities and 9 parks and green areas.
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 39.0% of the land in Castellammare di Stabia, compared with 34.9% in the province and 10.6% in the region. In 2024 built-up land stayed almost the same.
Radon and contaminated sites
Official databases list 4 contaminated sites, or sites still under investigation, in Castellammare di Stabia, and 5 more have been cleaned up or closed. 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 Castellammare di Stabia: 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 Castellammare di Stabia 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 210 inhabited census areas in Castellammare di Stabia. Half of the residents live in areas scoring 65 or more.
Residents by band
- modest 3.0%
- fair 43.4%
- good 53.6%
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 063024. The text on this page is generated automatically from the data.