Castellammare del Golfo: what to know before buying a home
A municipality in the province of Trapani, Sicilia. 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: Corso Giuseppe Garibaldi 1, Castellammare del Golfo.
Castellammare del Golfo, harbour town near Scopello and Zingaro
A castle on the water, a small harbour and houses stepping up the hillside behind: Castellammare del Golfo looks out over the gulf that bears its name, on the coast of western Sicily between Palermo and Trapani. The municipality also includes Scopello, with its sea stacks, and part of the Zingaro nature reserve, the protected coastline that runs on towards San Vito Lo Capo. The motorway to Trapani passes just above the town, and Palermo airport is less than an hour away.
Tourism weighs heavily on the housing market. Open data record 11.78 cafés and restaurants per 1,000 residents, against 5.45 in the province, and some homes are used as holiday houses or let over the summer. Anyone looking for a year-round home should bear in mind a town that fills up in summer and goes quiet in winter. It lies in climate zone B, the national heating classification: mild winters and little need for heating.
Istat, the national statistics office, counted 14,691 residents in 2023, up 0.6% on 2011, so the population has barely moved. The estimated average age is 45.3, over-65s make up 23.3% and foreign residents 7.1%. Households are small, 2.13 people on average, and declared incomes are slightly below the provincial average.
The province of Trapani remembers the Belice earthquake of 1968. Today 6 municipalities in the province are in seismic zone 1, and Castellammare is in zone 2 with 17 others; expected ground acceleration in the built-up area is about 0.092 g. In the houses of the centre, often old and extended several times, ask what work has been done on roofs, floors and added storeys.
The Revenue Agency (Agenzia delle Entrate) publishes the cadastral maps, and the report identifies the land parcel from the address. Between the cliffs of Scopello, the slopes behind the town and the streams running into the gulf, landslide and flood hazard vary a lot and are checked for the individual address.
Key points
- Harbour town on the gulf, with Scopello and part of the Zingaro reserve.
- 11.78 cafés and restaurants per 1,000 residents.
- Seismic zone 2, expected acceleration about 0.092 g.
- 14,691 residents in 2023, over-65s at 23.3%.
Overview
Castellammare del Golfo is a municipality in the province of Trapani, in Sicilia. At the end of 2023 it had 14,691 residents, ranked 7 of 25 municipalities in the province.
Earthquakes
For Italy's Civil Protection Department, Castellammare del Golfo is in seismic zone 2, a zone where strong earthquakes are possible. Most municipalities in the province (18 of 25) are in the same zone.
In the built-up area, the expected ground shaking (peak ground acceleration, PGA) is about 0.092 g, a moderate value: the level with a 10% probability of being exceeded in 50 years, on rock.
For anyone buying in Castellammare del Golfo, 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 number of residents is nearly unchanged. The estimated average age is 45 years, in line with the province. 23% of residents are over 65 (the regional figure is 23%). Foreign residents make up 7.1% of the population. On average, a household has 2.1 members.
Income and climate
In tax year 2024, taxpayers in Castellammare del Golfo declared an average taxable income of 18,362 euros, in line with the province (18,927 euros). The Italian average is 24,895 euros.
Castellammare del Golfo is in climate zone B, with 820 heating degree days: heating may be switched on from 1 December to 31 March, for up to 8 hours a day. The same table puts the town hall at 26 metres above sea level.
Services
In the official Ministry of Education and Ministry of Health lists, Castellammare del Golfo has 16 schools and 6 pharmacies. The Overture Maps data also lists 14 grocery shops and supermarkets, 18 healthcare facilities, 16 sports facilities and 5 parks and green areas.
There are 1.2 healthcare facilities per 1,000 residents, more than the province average (0.7).
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 7.5% of the land in Castellammare del Golfo, compared with 7.9% in the province and 6.6% in the region. In 2024 built-up land grew by 13.3 hectares.
Radon and contaminated sites
According to the ISPRA map, the estimated radon emission in the municipality is low. 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 Castellammare del Golfo.
Landslides and flooding
Landslide and flood hazard changes from one street to the next even within Castellammare del Golfo: 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 del Golfo 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 106 inhabited census areas in Castellammare del Golfo. Half of the residents live in areas scoring 81 or more.
Residents by band
- modest 0.0%
- fair 31.0%
- good 14.0%
- very good 51.8%
- excellent 3.2%
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 081005. The text on this page is generated automatically from the data.