Gonnosfanadiga: what to know before buying a home
A municipality in the province of Medio Campidano, Sardegna. Official data on earthquakes, population, services and transport.
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Search for an address in Gonnosfanadiga
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 Nazionale 1, Gonnosfanadiga.
Gonnosfanadiga, olive groves below Monte Linas
Gonnosfanadiga is the Sardinian town where the Campidano plain meets the Linas mountains, in the south-west of the island, between Villacidro and Guspini. The town is known above all for its olives: the Nera di Gonnos is a table olive variety grown here for generations, and groves cover much of the land around the town. Behind it rise the wooded slopes of the Linas massif.
The centre is made up of traditional Campidano courtyard houses, low, with a gateway onto the street and an inner yard, some built with sun-dried earth bricks as was the local custom, alongside newer homes in concrete block. Courtyard houses in need of restoration are often large and cheap, but work on earth-brick walls needs builders who know how to handle them. For a hospital and the main services people go to San Gavino Monreale or Cagliari.
The town is losing people. Istat, the national statistics institute, counted 6,090 residents in 2023, 612 fewer than in 2011, a fall of 9.1%. The average age is 49.2, over-65s make up 28.1% and foreign residents only 0.7%. Average incomes are below those of the province, which are already low.
Earthquakes are a distant thought in Sardinia. All 28 municipalities in the Medio Campidano, like the rest of the island, are in seismic zone 4, and the expected ground acceleration here is about 0.050 g. In older houses, damp, roofs and wiring matter more than seismic design. The area is in climate zone C, with mild winters and very hot summers.
Water is the more practical concern. Streams coming down from the Linas swell quickly in autumn storms, and areas near their beds need checking: the report reads flood and landslide hazard from the official maps for each address. The Revenue Agency publishes the cadastral maps, so the report can trace the plot.
Key points
- Home of the Nera di Gonnos olive, below the Linas massif.
- 612 fewer residents than in 2011.
- Seismic zone 4, like all of Sardinia.
- Streams from the Linas to check for flood hazard.
Overview
Gonnosfanadiga is a municipality in the province of Medio Campidano, in Sardegna. At the end of 2023 it had 6,090 residents, ranked 6 of 28 municipalities in the province.
Earthquakes
For Italy's Civil Protection Department, Gonnosfanadiga is in seismic zone 4, the lowest-risk zone, where strong earthquakes are very rare. All 28 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 resident population has fallen by 9.1%. The estimated average age is 49 years, in line with the province. 28% of residents are over 65 (the regional figure is 27%). Foreign residents make up 0.7% of the population. On average, a household has 2.2 members.
Income and climate
In tax year 2024, taxpayers in Gonnosfanadiga declared an average taxable income of 17,585 euros, below the provincial average (19,085 euros). The Italian average is 24,895 euros.
Gonnosfanadiga is in climate zone C, with 1,210 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 185 metres above sea level.
Services
In the official Ministry of Education and Ministry of Health lists, Gonnosfanadiga has 4 schools and 2 pharmacies. The Overture Maps data also lists 11 grocery shops and supermarkets, 2 healthcare facilities, 1 sports facility and 1 green area.
There are 1.8 grocery shops and supermarkets per 1,000 residents, more than the province average (0.9).
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 1.9% of the land in Gonnosfanadiga, compared with 3.4% in the region. In 2024 built-up land stayed almost the same.
Radon and contaminated sites
Gonnosfanadiga is one of the municipalities designated as a radon priority area by the Regione Sardegna in 2022. 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.
Landslides and flooding
Landslide and flood hazard changes from one street to the next even within Gonnosfanadiga: 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 Gonnosfanadiga 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 20 inhabited census areas in Gonnosfanadiga. Half of the residents live in areas scoring 81 or more.
Residents by band
- fair 0.5%
- good 18.5%
- very good 80.9%
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.
- Radon priority areas (Legislative Decree 101/2020), Regione Sardegna, national list compiled by ARPA Lombardia. Licence Atto pubblico (art. 5 L. 633/1941), 2022.
- 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 117007. The text on this page is generated automatically from the data.