All things you need to know about living in Saint-Denis
Saint-Denis, in the province of Valle d'Aosta/Vallée d'Aoste, is home to 2 French nationals: 0.55% of its 365 residents.
ISTAT counts 11 residents with a foreign citizenship in Saint-Denis, 3.01% of the population. Among the nationalities we follow most closely, the only group is French nationals (2).
These are small numbers, so we would not read much into the percentage or any change in it.
On ISTAT's well-being measures, the province of Valle d'Aosta/Vallée d'Aoste scores in the top quarter of Italian provinces for nonprofit organizations and electricity from renewable sources.
It scores in the bottom quarter for intentional homicide rate and overall Fixed Very High Capacity Network (VHCN) coverage.
These figures describe the province, not the town. A comune can sit some way from its province's average.
Summers average a high of 21.4°C (71°F) and winters a low of -8.6°C (17°F), measured over 2015 to 2024.
Saint-Denis sees about 0 days a year above 30°C (86°F).
It gets about 1,380mm of rain a year, spread across roughly 187 days.
These come from ERA5-Land reanalysis at the comune itself, not from the nearest weather station.
OMI puts residential purchase prices in Saint-Denis at about €1,275 per square meter in the second half of 2025.
At those figures, buying costs about 36.6 years of renting the same property.
That is above most Italian comuni.
Saint-Denis population over time
By nationality
| Nationality | Citizens | Share |
|---|---|---|
| Ukraine | 4 | 1.10% |
| France | 2 | 0.55% |
| Czechia | 1 | 0.27% |
| Romania | 1 | 0.27% |
| Albania | 0 | 0.00% |
| Argentina | 0 | 0.00% |
| Austria | 0 | 0.00% |
| Australia | 0 | 0.00% |
| Belgium | 0 | 0.00% |
| Bulgaria | 0 | 0.00% |
| Brazil | 0 | 0.00% |
| Canada | 0 | 0.00% |
| Switzerland | 0 | 0.00% |
| Cyprus | 0 | 0.00% |
| Germany | 0 | 0.00% |
| Denmark | 0 | 0.00% |
| Estonia | 0 | 0.00% |
| Spain | 0 | 0.00% |
| Finland | 0 | 0.00% |
| United Kingdom | 0 | 0.00% |
| Greece | 0 | 0.00% |
| Croatia | 0 | 0.00% |
| Hungary | 0 | 0.00% |
| Ireland | 0 | 0.00% |
| Japan | 0 | 0.00% |
| South Korea | 0 | 0.00% |
| Lithuania | 0 | 0.00% |
| Luxembourg | 0 | 0.00% |
| Latvia | 0 | 0.00% |
| Malta | 0 | 0.00% |
| Mexico | 0 | 0.00% |
| Netherlands | 0 | 0.00% |
| Norway | 0 | 0.00% |
| Poland | 0 | 0.00% |
| Portugal | 0 | 0.00% |
| Russia | 0 | 0.00% |
| Sweden | 0 | 0.00% |
| Slovenia | 0 | 0.00% |
| Slovakia | 0 | 0.00% |
| United States | 0 | 0.00% |
| Venezuela | 0 | 0.00% |
Country of birth
| Group | Residents | Share |
|---|---|---|
| Born in Italy | 340 | 93.15% |
| Born elsewhere in the EU | 10 | 2.74% |
| Born outside the EU | 15 | 4.11% |
French nationals over time
Quality of life in Aosta
Full BES profile for Aosta →Aosta on cost vs quality of life (province-level) →
Property prices
Buying in Saint-Denis is well below the Valle d'Aosta/Vallée d'Aoste average of €1,740/m². Based on a single OMI micro-zone, so it describes the town as one market.
36.6 years of rent here equal the purchase price — well above the national median of 22.2 years.
A ratio between two OMI prices, not a return on investment. It leaves out purchase taxes, IMU, maintenance, financing and the months a place sits empty — all of which push the real figure up. Useful for the question it does answer: whether this town looks expensive to buy relative to what renting in it costs.
Seismic zone
Saint-Denis is in seismic zone 3. Of the four zones, zone 1 is the highest hazard and zone 4 the lowest. The Department of Civil Protection describes zone 3 as a zone where strong earthquakes are less likely than in zones 1 and 2.
This is the legal classification the Region gave the comune, used for planning and for control of building works. It is not a forecast, and it says nothing about the building you are looking at: since the 2018 building code the design load of a new building comes from site-specific hazard, not from the zone. Have any specific property checked by a qualified engineer.
Not to be confused with the “seismic” routes of the 7% pensioner regime. Those turn on whether the comune was in the 2009 L’Aquila or 2016–17 central-Italy earthquake areas, not on its zone, and being in zone 1 does not make anyone eligible for that regime, or for any tax treatment.
See every comune on the map →Hospital, airport and daily-needs distance
Nearest hospital: Ospedale Regionale Umberto Parini, about 22.9 km / 25 minutes by road from Saint-Denis (the main town).
Nearest emergency department: Ospedale Regionale Umberto Parini, Aosta (DEA level II), about 22.9 km / 25 minutes by road from Saint-Denis (the main town).
Nearest airport: Turin Airport (TRN), about 103.5 km / 68 minutes by road from Saint-Denis (the main town).
Nearest supermarket (OpenStreetMap): Pellisier, about 5.7 km / 7 minutes by road from Saint-Denis (the main town).
Nearest pharmacy: Farmacia Repetto Lorenzo di Repetto Nicola e C. S.N.C., about 10.2 km / 13 minutes by road from Saint-Denis (the main town).
Nearest railway station (OpenStreetMap): Nus, about 10.3 km / 11 minutes by road from Saint-Denis (the main town).
Measured by road from the main town of the comune (its OpenStreetMap place point; the geographic center for the few comuni with none), at free-flow speeds with no traffic. It is approximate. For Saint-Denis, a trip from your own address can take longer or shorter. Drive the route before you rely on it, and ask the local health authority which hospital serves the town. Shops, pharmacies and stations are the nearest to the main town, not to your address.
Nearby comuni
← See Saint-Denis on the interactive map
This page, as data
Every figure above sits behind the page as a value with its source, its date and its coverage attached. Your assistant reads the same record, gaps included.