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Postua: what to know before buying a home

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

Liveability index free for any address

Search for an address in Postua

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 Monbarone 1, Postua.

Postua, a side valley of the lower Valsesia

Postua covers the valley of the Strona di Postua, a stream running down to the river Sesia in the lower Valsesia, with the village at around 460 metres and small hamlets scattered among thick woods and steep slopes. It is a mountain municipality a short way from the main valley floor, where the towns with shops, schools and services are; Vercelli, the provincial capital, is further away.

Homes are mostly stone buildings in the village and hamlets, many built on sloping ground, sometimes with narrow access. People who buy here want peace and nature, but should look carefully at damp, never in short supply in a wooded valley, at the roof and at the road in winter. The climate zone is E.

There were 533 residents in 2023, 61 fewer than the 594 of 2011, a drop of 10.3%. The average age is 51.0 against 48.4 in the province of Vercelli, and over-65s make up 32.8%, against the provincial 28.0%. Declared incomes are slightly below the provincial average.

Almost the whole province of Vercelli is in seismic zone 4, the lowest class, and Postua is one of them, along with 80 other municipalities; the expected ground acceleration in the village is about 0.044 g. Earthquakes have little bearing on the choice.

The Revenue Agency (Agenzia delle Entrate) cadastral maps cover the municipality and the report links the address to its parcel. In a narrow valley with a stream at the bottom and wooded slopes, it is wise to read the official landslide and flood maps at the exact address, as the report does.

Key points

  • Strona di Postua valley, in the lower Valsesia.
  • Stone houses on steep slopes: check damp and roofs.
  • Over-65s at 32.8%, against 28.0% in the province.
  • Seismic zone 4, the lowest class.

Overview

Postua is a municipality in the province of Vercelli, in Piemonte. At the end of 2023 it had 533 residents, ranked 47 of 82 municipalities in the province.

Earthquakes

For Italy's Civil Protection Department, Postua is in seismic zone 4, the lowest-risk zone, where strong earthquakes are very rare. Most municipalities in the province (81 of 82) are in the same zone.

In the built-up area, the expected ground shaking (peak ground acceleration, PGA) is about 0.044 g, a low value: the level with a 10% probability of being exceeded in 50 years, on rock.

In zone 4 the risk is low, but for an older building it is still worth asking about the state of the structure.

Population

Compared with the 2011 census, the resident population has fallen by 10.3%. The estimated average age is 51 years, higher than the province average (48). 33% of residents are over 65 (the regional figure is 27%). Foreign residents make up 3.6% of the population. On average, a household has 1.9 members.

Income and climate

In tax year 2024, taxpayers in Postua declared an average taxable income of 23,460 euros, below the provincial average (24,991 euros). The Italian average is 24,895 euros.

Postua is in climate zone E, with 2,867 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 459 metres above sea level.

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 1.5% of the land in Postua, compared with 5.0% in the province and 6.7% in the region. In 2024 built-up land stayed almost the same.

Radon and contaminated sites

Postua is not among the radon priority areas designated by the Regione Piemonte in 2023. 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 Postua.

Landslides and flooding

Landslide and flood hazard changes from one street to the next even within Postua: 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 Postua 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 8 inhabited census areas in Postua. Half of the residents live in areas scoring 57 or more.

Residents by band

  • fair 100.0%

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

ISTAT code 002102. The text on this page is generated automatically from the data.