Cetona: what to know before buying a home
A municipality in the province of Siena, Toscana. Official data on earthquakes, population, services and transport.
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Search for an address in Cetona
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 Remo Cacioli 1, Cetona.
Cetona, below its mountain between Val di Chiana and Val d'Orcia
At the foot of Monte Cetona, in the south of the province of Siena, the village of Cetona runs down from the fortress hill to a large, elongated square lined with palazzi and stone houses. From the village you look out over the Val di Chiana, while on the other side of the mountain lies the Val d'Orcia. Monte Cetona has important caves and prehistoric sites, explained in the village's civic museum.
Over the years the area has drawn many second-home buyers, Italian and foreign, mainly for farmhouses and estates in the hills. For anyone living here full time, the reference points for services and trains are Chiusi and Chianciano, with the station and the A1 motorway exit near Chiusi.
According to Istat, the national statistics office, there were 2,488 residents in 2023, down 12.5% since 2011. The population is older than the provincial average: average age 51.3 against 47.6 in the province, with 34.0% over 65 against 26.9%. Foreign nationals make up 12.7%.
The climate is zone D, with hot summers and cool winters. In stone farmhouses the main costs are roofs, walls and systems and, in the countryside, water supply and drainage, all to be checked before signing the preliminary contract (compromesso).
Cetona is in seismic zone 3 of the Civil Protection classification, like 30 other municipalities in the province of Siena, with an expected ground acceleration of 0.145 g: a moderate hazard, worth bearing in mind with old buildings. The Revenue Agency (Agenzia delle Entrate) cadastre is published and the report finds the land parcel even for an isolated estate, together with the official landslide and flood maps for that plot.
Key points
- Stone village at the foot of Monte Cetona
- Station and A1 motorway near Chiusi
- Average age 51.3, against 47.6 in the province
- Seismic zone 3, expected acceleration 0.145 g
Overview
Cetona is a municipality in the province of Siena, in Toscana. At the end of 2023 it had 2,488 residents, ranked 25 of 35 municipalities in the province.
Earthquakes
For Italy's Civil Protection Department, Cetona is in seismic zone 3, a zone where strong earthquakes are possible but rare. Most municipalities in the province (31 of 35) are in the same zone.
In the built-up area, the expected ground shaking (peak ground acceleration, PGA) is about 0.145 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 12.5%. The estimated average age is 51 years, higher than the province average (48). 34% of residents are over 65 (the regional figure is 26%). Foreign residents make up 12.7% of the population. On average, a household has 2.1 members.
Income and climate
In tax year 2024, taxpayers in Cetona declared an average taxable income of 22,189 euros, below the provincial average (25,404 euros). The Italian average is 24,895 euros.
Cetona is in climate zone D, with 2,000 heating degree days: heating may be switched on from 1 November to 15 April, for up to 12 hours a day. The same table puts the town hall at 385 metres above sea level.
Services
In the official Ministry of Education and Ministry of Health lists, Cetona has 4 schools and 2 pharmacies. The Overture Maps data also lists 6 grocery shops and supermarkets and 1 sports facility.
The data shows no healthcare facilities within the municipality, against a provincial average of 0.6 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 4.1% of the land in Cetona, compared with 4.0% in the province and 6.2% in the region. In 2024 built-up land stayed almost the same.
Radon and contaminated sites
Cetona is not among the radon priority areas designated by the Regione Toscana in 2025. 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 Cetona.
Landslides and flooding
Landslide and flood hazard changes from one street to the next even within Cetona: 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 Cetona 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 25 inhabited census areas in Cetona. Half of the residents live in areas scoring 70 or more.
Residents by band
- fair 28.2%
- good 71.4%
- very good 0.4%
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.
- Radon priority areas (Legislative Decree 101/2020), Regione Toscana, national list compiled by ARPA Lombardia. Licence Atto pubblico (art. 5 L. 633/1941), 2025.
- 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 052008. The text on this page is generated automatically from the data.