San Casciano dei Bagni: 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 San Casciano dei Bagni
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: Localita' Ponte a Rigo 301, San Casciano dei Bagni.
San Casciano dei Bagni, hot springs where Tuscany meets Lazio and Umbria
At the southern tip of the province of Siena, where Tuscany meets Lazio and Umbria, San Casciano dei Bagni is a hill village known for its thermal springs, used since ancient times. In recent years excavations at the Bagno Grande sanctuary have brought to light bronze statues from the Etruscan and Roman periods, making the village known well beyond Italy.
The land is all hills, woods and farms, with Monte Cetona close by. Buyers can choose between houses in the village, often stone-built on several floors, and farmhouses scattered in the countryside, where access roads, water supply and services are what count. For larger services and trains, people go to Chiusi or, across the regional border, Orvieto and Acquapendente.
Istat, the national statistics office, counts 1,444 residents in 2023, down 11.8% since 2011. The population is markedly older: an average age of 53.1 against 47.6 for the province, with over-65s at 37.0%. Foreign residents make up 9.6%. Declared incomes are below the provincial average.
Most of the province of Siena is in seismic zone 3, but San Casciano is one of the 4 municipalities in zone 2, with an expected ground acceleration of 0.144 g. For a stone farmhouse, ask what structural work has been done and have it checked.
On the slopes the report checks the official landslide maps for the address; the Revenue Agency (Agenzia delle Entrate) publishes the cadastral maps, so the report reaches the land parcel.
Key points
- Spa village where Tuscany meets Lazio and Umbria.
- Over-65s at 37.0%, average age 53.1.
- One of 4 Siena municipalities in seismic zone 2.
- Expected acceleration 0.144 g: check the structure.
Overview
San Casciano dei Bagni is a municipality in the province of Siena, in Toscana. At the end of 2023 it had 1,444 residents, among the smallest in the province (32 of 35).
Earthquakes
For Italy's Civil Protection Department, San Casciano dei Bagni is in seismic zone 2, a zone where strong earthquakes are possible. Only 4 of 35 municipalities in the province are in zone 2.
In the built-up area, the expected ground shaking (peak ground acceleration, PGA) is about 0.144 g, a moderate value: the level with a 10% probability of being exceeded in 50 years, on rock.
For anyone buying in San Casciano dei Bagni, 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 resident population has fallen by 11.8%. The estimated average age is 53 years, higher than the province average (48). 37% of residents are over 65 (the regional figure is 26%). Foreign residents make up 9.6% of the population. On average, a household has 2.0 members.
Income and climate
In tax year 2024, taxpayers in San Casciano dei Bagni declared an average taxable income of 22,309 euros, below the provincial average (25,404 euros). The Italian average is 24,895 euros.
San Casciano dei Bagni is in climate zone E, with 2,333 heating degree days: heating may be switched on from 15 October to 15 April, for up to 14 hours a day. The same table puts the town hall at 582 metres above sea level.
Services
In the official Ministry of Education and Ministry of Health lists, San Casciano dei Bagni has 2 schools and 2 pharmacies. The Overture Maps data also lists 2 grocery shops and supermarkets.
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 2.4% of the land in San Casciano dei Bagni, 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
San Casciano dei Bagni 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 open contaminated sites in San Casciano dei Bagni; one has been cleaned up or closed.
Landslides and flooding
Landslide and flood hazard changes from one street to the next even within San Casciano dei Bagni: 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 San Casciano dei Bagni 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 40 inhabited census areas in San Casciano dei Bagni. Half of the residents live in areas scoring 68 or more.
Residents by band
- fair 44.2%
- good 55.8%
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 052027. The text on this page is generated automatically from the data.