Carbognano: what to know before buying a home
A municipality in the province of Viterbo, Lazio. Official data on earthquakes, population, services and transport.
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Search for an address in Carbognano
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 Fontanavecchia 1, Carbognano.
Carbognano, among the hazel groves of the Cimini hills
Hazel groves run right up to the houses. Carbognano lies in the Cimini hills, in the Tuscia area around Viterbo north of Rome, where hazelnuts shape the landscape and part of the local economy. The village lies at around 400 metres, with its old centre gathered round the castle and newer housing on the flat ground around it. Viterbo is roughly half an hour away; Rome is further, but workable for people who go into the city a few days a week.
In the old core you find stone village houses, often on several levels and with cellars, and outside the centre there are detached houses with gardens. In older houses, check the walls and any damp in rooms set against the ground. Country houses among the hazel groves appeal to people who want space, but access roads and utility connections need checking.
At the end of 2023 there were 1,947 residents, down 4.7% on 2011, according to Istat, the national statistics office. The population is slightly younger than the province of Viterbo: average age 46.3 against 47.5, over-65s at 23.5% against 25.9%. Foreign residents make up 10.8%. Declared incomes are below the provincial average.
Carbognano is in seismic zone 3, with an expected ground acceleration of 0.095 g, a moderate level. In a stone house, have an engineer or surveyor look at any cracks and at how the roof is tied to the walls.
Revenue Agency (Agenzia delle Entrate) cadastral maps are published, and the report links the address to its land parcel, including scattered houses in the countryside.
Key points
- Village in the Cimini hills, among hazel groves.
- Stone centre, villas and farmhouses outside.
- Average age 46.3, below the provincial figure.
- Seismic zone 3, expected acceleration 0.095 g.
Overview
Carbognano is a municipality in the province of Viterbo, in Lazio. At the end of 2023 it had 1,947 residents, ranked 42 of 60 municipalities in the province.
Earthquakes
For Italy's Civil Protection Department, Carbognano is in seismic zone 3, a zone where strong earthquakes are possible but rare. The region uses a finer breakdown: here the classification is 3A. Only 20 of 60 municipalities in the province are in zone 3.
In the built-up area, the expected ground shaking (peak ground acceleration, PGA) is about 0.095 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 4.7%. The estimated average age is 46 years, in line with the province. 24% of residents are over 65 (the regional figure is 23%). Foreign residents make up 10.8% of the population. On average, a household has 2.2 members.
Income and climate
In tax year 2024, taxpayers in Carbognano declared an average taxable income of 19,570 euros, below the provincial average (22,031 euros). The Italian average is 24,895 euros.
Carbognano is in climate zone E, with 2,120 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 394 metres above sea level.
Services
In the official Ministry of Education and Ministry of Health lists, Carbognano has 3 schools and 1 pharmacy. The Overture Maps data also lists 1 grocery shop.
The data shows no healthcare facilities within the municipality, against a provincial average of 0.5 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 5.2% of the land in Carbognano, compared with 4.7% 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 high. 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 Carbognano.
Landslides and flooding
Landslide and flood hazard changes from one street to the next even within Carbognano: 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 Carbognano 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 14 inhabited census areas in Carbognano. Half of the residents live in areas scoring 60 or more.
Residents by band
- fair 83.4%
- good 16.6%
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 056016. The text on this page is generated automatically from the data.