Castro dei Volsci: what to know before buying a home
A municipality in the province of Frosinone, Lazio. Official data on earthquakes, population, services and transport.
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Search for an address in Castro dei Volsci
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: Contrada Collepece 1, Castro dei Volsci.
Castro dei Volsci, a stone village above the Sacco valley
The old centre of Castro dei Volsci sits on top of a hill at the edge of the Ausoni mountains, in the heart of the Ciociaria area south of Rome. From up there you look over the Valle Latina, the plain of the Sacco river where the roads and the railway between Rome and Cassino run. The village is a web of alleys, steps and stone houses built against one another; lower down, along the roads descending to the valley, are newer houses and farming districts.
Buyers have to choose between these two settings. In the village houses are cheaper and full of character, but they are often reachable only on foot and need work on roofs, walls and heating and wiring. In the lower districts you find detached houses and homes with land, closer to the roads towards Frosinone and the industrial areas of the valley. The data lists 35 services in the municipality.
There are 4,418 residents, down 9.9% since 2011. The average age is 48.6 against 46.8 for the province of Frosinone and over-65s make up 28.4%; foreign residents are few, 2.9%. Declared incomes are close to the provincial average, slightly below.
The Frosinone area is seismic. Castro dei Volsci is in zone 2, like 58 other municipalities, while 30 in the province are in zone 1, the highest in the classification set by the Civil Protection department. The expected ground acceleration is about 0.144 g. The stone houses in the village were built without any seismic design, so ask whether they have been strengthened and have an engineer check the work.
On the hill and along the slopes, the gradient should be checked address by address, together with the official landslide maps the report consults. The Revenue Agency's cadastral maps are published.
Key points
- Stone village on a hill above the Valle Latina, south of Rome.
- 4,418 residents, down 9.9% since 2011.
- Seismic zone 2, expected acceleration about 0.144 g.
- Village houses are cheap but often need strengthening.
Overview
Castro dei Volsci is a municipality in the province of Frosinone, in Lazio. At the end of 2023 it had 4,418 residents, ranked 26 of 91 municipalities in the province.
Earthquakes
For Italy's Civil Protection Department, Castro dei Volsci is in seismic zone 2, a zone where strong earthquakes are possible. The region uses a finer breakdown: here the classification is 2B. Most municipalities in the province (59 of 91) are in the same zone.
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 Castro dei Volsci, 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 9.9%. The estimated average age is 49 years, higher than the province average (47). 28% of residents are over 65 (the regional figure is 23%). Foreign residents make up 2.9% of the population. On average, a household has 2.2 members.
Income and climate
In tax year 2024, taxpayers in Castro dei Volsci declared an average taxable income of 21,281 euros, in line with the province (21,514 euros). The Italian average is 24,895 euros.
Castro dei Volsci is in climate zone D, with 1,831 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, Castro dei Volsci has 3 schools and 1 pharmacy. The Overture Maps data also lists 5 grocery shops and supermarkets, 2 healthcare facilities and 1 sports facility.
There are 0.2 pharmacies per 1,000 residents, fewer than the province average (0.4).
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 4.9% of the land in Castro dei Volsci, compared with 6.9% in the province and 8.2% in the region. In 2024 built-up land stayed almost the same.
Radon and contaminated sites
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.
Official databases list one contaminated site, or site still under investigation, in Castro dei Volsci. 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 Castro dei Volsci: 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 Castro dei Volsci 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 62 inhabited census areas in Castro dei Volsci. Half of the residents live in areas scoring 63 or more.
Residents by band
- modest 1.1%
- fair 61.4%
- good 29.6%
- very good 8.0%
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 060023. The text on this page is generated automatically from the data.