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Piglio: what to know before buying a home

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

Liveability index free for any address

Search for an address in Piglio

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 delle Piagge 1, Piglio.

Piglio, Cesanese wine country above the Sacco valley

Anyone who knows the wines of Lazio links Piglio with Cesanese del Piglio, the red that has its top-tier DOCG designation here. The town sits high up, at around six hundred metres, on the slopes of the hills that close the Sacco valley to the north, in the Anagni and Fiuggi area, with vineyards running down towards the valley floor.

The historic centre is compact, with stone houses and uphill streets; lower down, along the roads to the valley, there are newer buildings and scattered houses among vineyards and olive groves. For buyers, the gradient matters: the report measures elevation and slope at the address and checks the official landslide maps. Winters are cold (climate zone E), and a poorly insulated stone house is expensive to heat.

Istat, the national statistics office, counts 4,331 residents in 2023, down 7.0% on 2011. The population is older than in the province of Frosinone as a whole: average age 48.3 against 46.8, with over-65s at 26.9%. Foreign residents make up 4.1%. Declared incomes are in line with the provincial average.

The province of Frosinone is one of the most earthquake-prone parts of Lazio: 30 municipalities are in zone 1 and 59 in zone 2. Piglio is in seismic zone 2, with an expected ground acceleration of around 0.156 g. Many houses in the old centre are built of stone, long before modern seismic rules: before buying, have an engineer check how walls and floors are tied together, the state of the roof and any work already carried out.

Key points

  • Home of Cesanese del Piglio wine, at about six hundred metres.
  • 4,331 residents, down 7.0% since 2011.
  • Seismic zone 2, expected acceleration about 0.156 g.
  • Slopes and landslides to check plot by plot.

Overview

Piglio is a municipality in the province of Frosinone, in Lazio. At the end of 2023 it had 4,331 residents, ranked 27 of 91 municipalities in the province.

Earthquakes

For Italy's Civil Protection Department, Piglio 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 0.156 g, a medium-high value: the level with a 10% probability of being exceeded in 50 years, on rock.

For anyone buying in Piglio, 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 7.0%. The estimated average age is 48 years, in line with the province. 27% of residents are over 65 (the regional figure is 23%). Foreign residents make up 4.1% of the population. On average, a household has 2.2 members.

Income and climate

In tax year 2024, taxpayers in Piglio declared an average taxable income of 21,688 euros, in line with the province (21,514 euros). The Italian average is 24,895 euros.

Piglio is in climate zone E, with 2,330 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 620 metres above sea level.

Services

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

The data shows no healthcare facilities within the municipality, against a provincial average of 0.6 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 4.2% of the land in Piglio, compared with 6.9% in the province and 8.2% in the region. In 2024 built-up land grew by 0.6 hectares.

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 2 contaminated sites, or sites still under investigation, in Piglio. 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 Piglio: 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 Piglio 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 35 inhabited census areas in Piglio. Half of the residents live in areas scoring 63 or more.

Residents by band

  • fair 54.4%
  • good 45.6%

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

ISTAT code 060053. The text on this page is generated automatically from the data.