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Issime: what to know before buying a home

A municipality in the province of Valle d'Aosta/Vallée d'Aoste, Valle d'Aosta/Vallée d'Aoste. Official data on earthquakes, population, services and transport.

Liveability index free for any address

Search for an address in Issime

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: Localita' Capoluogo 1, Issime.

Issime, the Walser community of the Lys valley

Heading up the Lys valley from Pont-Saint-Martin towards Gressoney, Issime is the first Walser village you reach. The Walser are a community of Germanic origin who settled in the valleys around Monte Rosa in the Middle Ages, and in Issime a distinct variety of their language is still spoken. The village lies at around 960 metres, on the valley floor and slopes, with stone and timber houses and scattered hamlets.

Two things matter for a buyer: distances and climate. Pont-Saint-Martin, at the mouth of the valley, has the railway station, the motorway and the main services; Aosta and Ivrea are further away. It is climate zone F, with long, snowy winters, so the roof, insulation and heating need a careful look. Alongside homes lived in all year there are holiday properties.

Istat, the national statistics office, counted 381 residents in 2023, 9.7% fewer than the 422 of 2011. The estimated average age is 46.3, close to the 47.0 of the Aosta Valley as a whole, and over-65s make up 24.4%. Foreign residents are 8.1%. Declared incomes are in line with the regional average, slightly above.

For earthquakes the whole Aosta Valley sits in one zone: Issime is in seismic zone 3 on the Civil Protection Department's scale, like all 74 municipalities in the region, with expected ground acceleration of about 0.053 g. In an Alpine valley, slopes and torrents matter more: landslides, avalanches and debris flows are on the official maps, spot by spot.

Revenue Agency (Agenzia delle Entrate) cadastral maps are published and the report links the address to its land parcel.

Key points

  • Walser village in the Lys valley, above Pont-Saint-Martin.
  • 381 residents in 2023, average age 46.3.
  • Seismic zone 3, like all 74 municipalities in the region.
  • Climate zone F: assess snow load, roof and insulation.

Overview

Issime is a municipality in the province of Valle d'Aosta/Vallée d'Aoste, in Valle d'Aosta/Vallée d'Aoste. At the end of 2023 it had 381 residents, ranked 54 of 74 municipalities in the province.

Earthquakes

For Italy's Civil Protection Department, Issime is in seismic zone 3, a zone where strong earthquakes are possible but rare. All 74 municipalities in the province are in the same zone.

In the built-up area, the expected ground shaking (peak ground acceleration, PGA) is about 0.053 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 9.7%. The estimated average age is 46 years, in line with the province. 24% of residents are over 65 (the regional figure is 25%). Foreign residents make up 8.1% of the population. On average, a household has 1.9 members.

Income and climate

In tax year 2024, taxpayers in Issime declared an average taxable income of 27,237 euros, in line with the province (26,152 euros). The Italian average is 24,895 euros.

Issime is in climate zone F, with 3,672 heating degree days, with no limits on when heating may be used. The same table puts the town hall at 960 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 1.0% of the land in Issime, compared with 2.2% in the province and 2.2% in the region. In 2024 built-up land stayed almost the same.

Radon and contaminated sites

Issime is not among the radon priority areas designated by the Regione Valle d'Aosta in 2026. 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 Issime.

Landslides and flooding

Landslide and flood hazard changes from one street to the next even within Issime: 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 Issime 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 11 inhabited census areas in Issime. Half of the residents live in areas scoring 62 or more.

Residents by band

  • fair 61.1%
  • good 38.9%

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 007036. The text on this page is generated automatically from the data.