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Tolfa: what to know before buying a home

A municipality in the province of Roma, Lazio. Official data on earthquakes, population, services and transport.

Liveability index free for any address

Search for an address in Tolfa

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 Annibal Caro 1, Tolfa.

Tolfa, a hilltop fortress in alum country above Civitavecchia

Above the town, on a spur of rock, stand the ruins of the fortress that overlooks Tolfa and the valley. This is the Tolfa hills, a group of volcanic heights between Civitavecchia and Lake Bracciano, covered in woods and pastures where Maremma cattle and horses are still raised, tended by the butteri, the local mounted herdsmen. From the fifteenth century alum was mined in these hills, and the town's name has ended up on the leather bag known as the Tolfa bag.

The town lies at around 480 metres, with a sloping old centre and stone houses packed together. Civitavecchia, with its port, the railway to Rome and the motorway, is about half an hour away along a winding road. Buying here means choosing hill-village life, with cool winters (climate zone D) and prices far lower than on the coast; many houses in the centre are empty or used as second homes.

The population is falling: 4,718 residents in 2023, down 8.3% on 2011. The average age is 47.8, above the metropolitan area of Rome (46.0), and over-65s are 26.7% against 22.9%. Foreign residents make up 7.8%, and declared incomes are well below the average for the Rome area.

Tolfa is in seismic zone 3, with an expected ground acceleration of about 0.076 g. In the stone houses of the centre, often on several levels, check roofs, damp and the ties between walls and floors. On the steep slopes the report also checks landslides, which for a town built on rock can vary a great deal from one street to the next.

Key points

  • In the Tolfa hills, half an hour from Civitavecchia.
  • Over-65s at 26.7% against 22.9% in the Rome area.
  • 4,718 residents, down 8.3% since 2011.
  • Seismic zone 3, expected acceleration about 0.076 g.

Overview

Tolfa is a municipality in the province of Roma, in Lazio. At the end of 2023 it had 4,718 residents, ranked 62 of 121 municipalities in the province.

Earthquakes

For Italy's Civil Protection Department, Tolfa is in seismic zone 3, a zone where strong earthquakes are possible but rare. The region uses a finer breakdown: here the classification is 3B. Only 24 of 121 municipalities in the province are in zone 3.

In the built-up area, the expected ground shaking (peak ground acceleration, PGA) is about 0.076 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 8.3%. The estimated average age is 48 years, higher than the province average (46). 27% of residents are over 65 (the regional figure is 23%). Foreign residents make up 7.8% of the population. On average, a household has 2.1 members.

Income and climate

In tax year 2024, taxpayers in Tolfa declared an average taxable income of 21,869 euros, below the provincial average (28,682 euros). The Italian average is 24,895 euros.

Tolfa is in climate zone D, with 2,070 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 484 metres above sea level.

Services

In the official Ministry of Education and Ministry of Health lists, Tolfa has 5 schools and 1 pharmacy. The Overture Maps data also lists 5 grocery shops and supermarkets, 2 healthcare facilities, 3 sports facilities and 3 parks and green areas.

There are 1.1 grocery shops and supermarkets per 1,000 residents, more 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 1.9% of the land in Tolfa, compared with 13.2% in the province and 8.2% in the region. In 2024 built-up land stayed almost the same.

Radon and contaminated sites

Official databases list 2 contaminated sites, or sites still under investigation, in Tolfa, and one more has been cleaned up or closed. 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 Tolfa: 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 Tolfa 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 28 inhabited census areas in Tolfa. Half of the residents live in areas scoring 80 or more.

Residents by band

  • modest 0.1%
  • fair 12.4%
  • good 33.2%
  • very good 54.3%

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

ISTAT code 058105. The text on this page is generated automatically from the data.