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Calasetta: what to know before buying a home

A municipality in the province of Sulcis Iglesiente, Sardegna. Official data on earthquakes, population, services and transport.

Liveability index free for any address

Search for an address in Calasetta

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 Magenta 1, Calasetta.

Calasetta, the tip of Sant'Antioco and the ferry to Carloforte

Calasetta occupies the northern tip of the island of Sant'Antioco, in south-west Sardinia. The village was founded in the 18th century by families of Ligurian origin who came from Tabarka, in Tunisia, and Tabarchino, the same dialect spoken in Carloforte, is still in use. The streets of the centre are straight and laid out in a grid, lined with low, light-coloured houses.

Ferries leave the harbour for Carloforte, on the island of San Pietro, while Sant'Antioco is linked to mainland Sardinia by road. For the hospital and wider services, residents go to Carbonia or Iglesias, and Cagliari is about an hour and a half away. The sea is why many people buy here: a large share of homes are lived in only in summer, and the market is split between holiday flats and villas and houses in the centre for year-round residents.

Istat, the national statistics office, counts 2,821 residents (2023), almost exactly the same as in 2011. The average age is high, 51.1 against 50.6 in the province of Sulcis Iglesiente, and over-65s are 32.7%. Households are small, with 1.82 people on average, and foreign residents are 1.9%. Declared incomes are slightly above the provincial average.

Seismic risk is among the lowest in Italy: all 24 municipalities in the province are in zone 4, and the expected ground acceleration is 0.050 g. The climate is mild, in climate zone B, so for a house near the sea what matters most is wind, salt air and protection from summer heat.

From the address, the report gives you the price band, cadastral maps, services within reach and the official flood and landslide maps along the coast.

Key points

  • Northern tip of Sant'Antioco, ferries to Carloforte
  • Founded by Tabarchino settlers, with a grid-plan centre
  • Over-65s at 32.7%, households of 1.82
  • Seismic zone 4, expected acceleration 0.050 g

Overview

Calasetta is a municipality in the province of Sulcis Iglesiente, in Sardegna. At the end of 2023 it had 2,821 residents, ranked 13 of 24 municipalities in the province.

Earthquakes

For Italy's Civil Protection Department, Calasetta is in seismic zone 4, the lowest-risk zone, where strong earthquakes are very rare. All 24 municipalities in the province are in the same zone.

In the built-up area, the expected ground shaking (peak ground acceleration, PGA) is about 0.050 g, a moderate value: the level with a 10% probability of being exceeded in 50 years, on rock.

In zone 4 the risk is low, but for an older building it is still worth asking about the state of the structure.

Population

Compared with the 2011 census, the number of residents is nearly unchanged. The estimated average age is 51 years, in line with the province. 33% of residents are over 65 (the regional figure is 27%). Foreign residents make up 1.9% of the population. On average, a household has 1.8 members.

Income and climate

In tax year 2024, taxpayers in Calasetta declared an average taxable income of 19,875 euros, in line with the province (19,085 euros). The Italian average is 24,895 euros.

Calasetta is in climate zone B, with 789 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 10 metres above sea level.

Services

In the official Ministry of Education and Ministry of Health lists, Calasetta has 3 schools and 1 pharmacy. The Overture Maps data also lists 1 grocery shop and 1 sports facility.

The data shows no healthcare facilities within the municipality, against a provincial average of 0.5 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 6.0% of the land in Calasetta, compared with 3.4% in the region. In 2024 built-up land grew by 0.6 hectares.

Radon and contaminated sites

Calasetta is not among the radon priority areas designated by the Regione Sardegna in 2022. Radon varies from building to building and can only be known by measuring it, especially on ground floors and in basements.

Landslides and flooding

Landslide and flood hazard changes from one street to the next even within Calasetta: 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 Calasetta 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 Calasetta. Half of the residents live in areas scoring 72 or more.

Residents by band

  • fair 35.7%
  • good 64.3%

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

ISTAT code 119002. The text on this page is generated automatically from the data.