Casteltermini: what to know before buying a home
A municipality in the province of Agrigento, Sicilia. Official data on earthquakes, population, services and transport.
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Search for an address in Casteltermini
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 Luigi Cadorna 1, Casteltermini.
Casteltermini, the Platani valley and its sulphur-mining past
Casteltermini lies in the hilly interior of the province of Agrigento in Sicily, on high ground above the Platani valley at around five hundred and fifty metres. For generations work came from the sulphur mines in the area, closed for decades now; today there is farming, local services and heavy emigration to northern Italy and abroad. The town is also known for the Tataratà, the Holy Cross festival with its sword dance.
The housing market reflects the loss of population. Many houses in the centre, masonry buildings over several floors, stand empty or are for sale at very low prices, sometimes owned by heirs living far away. Buyers should budget for major renovation and check that the ownership is clear and that there are no unauthorised works to regularise. Agrigento and Palermo can only be reached by car, and it takes a while.
The figures are stark. At the end of 2023 there were 7,217 residents, 14.3% fewer than in 2011, a loss of 1,205, according to Istat, the national statistics office. The estimated average age is 48.3, against 45.6 in the province, and over-65s make up 27.8%, against 24.0%. Foreign residents are only 1.6%.
Casteltermini is in seismic zone 2 on the Civil Protection scale, like 27 of the 43 municipalities in the province, but expected ground acceleration in the built-up area is moderate, about 0.069 g. The practical issue is the condition of old houses: roofs, timber floors and walls exposed to damp after years of neglect need a surveyor's inspection.
The clay slopes of inland Sicily are often prone to landslides and subsidence, and the report checks the hazard maps at the exact address. The Revenue Agency (Agenzia delle Entrate) publishes the cadastral maps, which lead to the land parcel.
Key points
- Inland Agrigento above the Platani valley, former sulphur-mining area.
- Population down 14.3% since 2011.
- Over-65s at 27.8%, against 24.0% in the province.
- Seismic zone 2, expected acceleration about 0.069 g.
Overview
Casteltermini is a municipality in the province of Agrigento, in Sicilia. At the end of 2023 it had 7,217 residents, ranked 16 of 43 municipalities in the province.
Earthquakes
For Italy's Civil Protection Department, Casteltermini is in seismic zone 2, a zone where strong earthquakes are possible. Most municipalities in the province (27 of 43) are in the same zone.
In the built-up area, the expected ground shaking (peak ground acceleration, PGA) is about 0.069 g, a moderate value: the level with a 10% probability of being exceeded in 50 years, on rock.
For anyone buying in Casteltermini, 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 14.3%. The estimated average age is 48 years, higher than the province average (46). 28% of residents are over 65 (the regional figure is 23%). Foreign residents make up 1.6% of the population. On average, a household has 2.2 members.
Income and climate
In tax year 2024, taxpayers in Casteltermini declared an average taxable income of 17,611 euros, in line with the province (18,027 euros). The Italian average is 24,895 euros.
Casteltermini is in climate zone C, with 1,384 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 554 metres above sea level.
Services
In the official Ministry of Education and Ministry of Health lists, Casteltermini has 7 schools and 3 pharmacies. The Overture Maps data also lists 5 grocery shops and supermarkets, 3 healthcare facilities and 1 sports facility.
There are 0.4 healthcare facilities per 1,000 residents, fewer than the province average (0.6).
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 3.6% of the land in Casteltermini, compared with 5.8% in the province and 6.6% in the region. In 2024 built-up land grew by 0.9 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 one contaminated site, or site still under investigation, in Casteltermini. The report tells you whether one is close to the address.
Landslides and flooding
Landslide and flood hazard changes from one street to the next even within Casteltermini: 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 Casteltermini 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 33 inhabited census areas in Casteltermini. Half of the residents live in areas scoring 80 or more.
Residents by band
- fair 16.0%
- good 25.3%
- very good 58.8%
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.
- 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 084012. The text on this page is generated automatically from the data.