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Châtillon: 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 Châtillon

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 Emilio Chanoux 1, Châtillon.

Châtillon, the Aosta Valley crossroads on the way to Cervinia

Châtillon lies in the centre of the Aosta Valley, on the Dora Baltea river, where the Valtournenche opens up towards Cervinia and the Matterhorn. Together with Saint-Vincent, right next door, it forms the main hub of the middle valley, and the motorway exit named after the two towns makes it an obligatory stop for anyone heading to the mountains. The grounds of Castello Gamba house the region's museum of modern and contemporary art.

It is among the most populous municipalities in the region: 4,346 residents, although down 12.1% since 2011. Many people who work in Aosta, in the businesses on the valley floor or in tourism in the side valleys make their home here. The average age is 48.4 against 47.0 for the region, over-65s make up 26.7% and foreign residents 7.8%. Declared incomes are slightly below the regional average.

For buyers, the valley floor offers flats and services, while the villages on the slopes have stone and timber houses with more sun and more snow. The town hall sits at around 550 metres, yet this is climate zone F, the coldest in the Italian scale: heating and insulation matter a great deal, so ask for actual running costs. The data lists 43 services, 9 of them linked to schools.

All 74 municipalities in the Aosta Valley are in seismic zone 3; in Châtillon the expected ground acceleration is low, about 0.068 g. In the mountains, landslides, debris flows, avalanches higher up and floods from the Dora and side streams weigh more: the report reads the official maps for the address and measures slope and elevation.

The land registry is run by the Revenue Agency (Agenzia delle Entrate), with published maps, and the report traces the plot from the address.

Key points

  • Centre of the Aosta Valley, at the entrance to the Valtournenche.
  • 4,346 residents, down 12.1% since 2011.
  • Seismic zone 3, low acceleration (0.068 g).
  • Climate zone F: landslides, streams and running costs to check.

Overview

Châtillon 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 4,346 residents, among the most populous in the province (4 of 74).

Earthquakes

For Italy's Civil Protection Department, Châtillon 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 0.068 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 12.1%. The estimated average age is 48 years, in line with the province. 27% of residents are over 65 (the regional figure is 25%). Foreign residents make up 7.8% of the population. On average, a household has 2.0 members.

Income and climate

In tax year 2024, taxpayers in Châtillon declared an average taxable income of 24,433 euros, below the provincial average (26,152 euros). The Italian average is 24,895 euros.

Châtillon is in climate zone F, with 3,012 heating degree days, with no limits on when heating may be used. The same table puts the town hall at 549 metres above sea level.

Services

In the official Ministry of Education and Ministry of Health lists, Châtillon has 9 schools and 1 pharmacy. The Overture Maps data also lists 6 grocery shops and supermarkets and 1 healthcare facility.

There are 0.2 healthcare facilities per 1,000 residents, fewer than the province average (0.5).

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 4.9% of the land in Châtillon, compared with 2.2% in the province and 2.2% in the region. In 2024 built-up land grew by 2.5 hectares.

Radon and contaminated sites

Châtillon is not among the radon priority areas designated by the Regione Valle d'Aosta in 2026. Radon varies from building to building and can only be known by measuring it, especially on ground floors and in basements.

Official databases list one contaminated site, or site still under investigation, in Châtillon, and 3 more have 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 Châtillon: 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 Châtillon 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 53 inhabited census areas in Châtillon. Half of the residents live in areas scoring 78 or more.

Residents by band

  • modest 0.5%
  • fair 7.6%
  • good 54.8%
  • very good 37.2%

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 007020. The text on this page is generated automatically from the data.