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Monterosi: what to know before buying a home

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

Liveability index free for any address

Search for an address in Monterosi

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 degli Uccelletti 3, Monterosi.

Monterosi, the small lake and the Cassia road to Rome

Monterosi is the municipality in the province of Viterbo closest to Rome along the Via Cassia, and for some fifteen years it has been drawing new families. The village stands on a rise of tuff, the local volcanic stone, in the countryside between Nepi and Sutri; just outside lies Lake Monterosi, a small lake of volcanic origin surrounded by meadows and reed beds.

The road explains the growth. The Cassia bis, a fast dual carriageway, links Monterosi to the northern edge of Rome, and many residents commute to the capital every day. Buyers here are often looking for a bigger house at a lower price than in Rome. At rush hour, however, the Cassia slows down, so try the journey on a weekday before deciding.

The numbers show the pace: 4,759 residents in 2023, 891 more than in 2011, growth of 23.0%. The average age is 44.6, below the provincial figure of 47.5, over-65s are 20.0% against 25.9% provincially, and foreign residents make up 16.7%. Average declared incomes are slightly above those of the province.

The municipality is in seismic zone 3, with an expected ground acceleration of about 0.078 g. In the newer neighbourhoods, build quality and energy rating matter most; in the old village on the tuff, check cellars, damp and the condition of the walls. The report adds the price band for the area and distances to schools and services measured from the address.

Key points

  • On the Cassia bis, the Viterbo municipality closest to Rome.
  • 4,759 residents, up 23.0% since 2011.
  • Average age 44.6, over-65s at 20.0%.
  • Seismic zone 3, expected acceleration about 0.078 g.

Overview

Monterosi is a municipality in the province of Viterbo, in Lazio. At the end of 2023 it had 4,759 residents, ranked 19 of 60 municipalities in the province.

Earthquakes

For Italy's Civil Protection Department, Monterosi 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 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 0.078 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 grown by 23.0%. The estimated average age is 45 years, lower than the province average (48). 20% of residents are over 65 (the regional figure is 23%). Foreign residents make up 16.7% of the population. On average, a household has 2.2 members.

Income and climate

In tax year 2024, taxpayers in Monterosi declared an average taxable income of 23,032 euros, in line with the province (22,031 euros). The Italian average is 24,895 euros.

Monterosi is in climate zone D, with 1,911 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 276 metres above sea level.

Services

In the official Ministry of Education and Ministry of Health lists, Monterosi has 3 schools and 1 pharmacy. The Overture Maps data also lists 4 grocery shops and supermarkets and 1 green area.

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 12.4% of the land in Monterosi, 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 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 no contaminated sites in Monterosi.

Landslides and flooding

Landslide and flood hazard changes from one street to the next even within Monterosi: 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 Monterosi 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 25 inhabited census areas in Monterosi. Half of the residents live in areas scoring 62 or more.

Residents by band

  • fair 51.6%
  • good 48.4%

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 056038. The text on this page is generated automatically from the data.