Buying a home in Saint-Oyen
198 residents at the 2021 census, 119 buildings and 9.4 km² of territory, Valle d’Aosta/Vallée d’Aoste.
Saint-Oyen is in seismic zone 3: in this zone strong earthquakes are less likely than in zones 1 and 2. According to ISPRA’s mosaic, 89.6% of the territory of Saint-Oyen has high or very high landslide hazard (P3 and P4), with 36.9% of the residents. 13.8% of the territory of Saint-Oyen is in the flood area of the medium-probability scenario (P2), with 24% of the residents.
Find your address in Saint-Oyen
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Saint-Oyen compared
| ISPRA indicator | Saint-Oyen | AO | Valle d'Aosta/Vallée d'Aoste |
|---|---|---|---|
| Landslide, very high hazard (P4) | 60% | 48.9% | 48.9% |
| Landslide, high hazard (P3) | 29.6% | 34.8% | 34.8% |
| Landslide, areas of attention | 0% | 0% | 0% |
| Residents in landslide areas P3-P4 | 36.9% | 10.9% | 10.9% |
| Buildings in landslide areas P3-P4 | 35.3% | 22.6% | 22.6% |
| Flood, high probability (P3) | 8.3% | 5% | 5% |
| Flood, medium probability (P2) | 13.8% | 7.3% | 7.3% |
| Flood, low probability (P1) | 16.2% | 9.2% | 9.2% |
| Residents in P2 flood areas | 24% | 9.1% | 9.1% |
| Buildings in P2 flood areas | 24% | 11.1% | 11.1% |
Questions
Which seismic zone is Saint-Oyen in?
Saint-Oyen is in seismic zone 3: in this zone strong earthquakes are less likely than in zones 1 and 2.
How much of Saint-Oyen is in landslide class P3/P4?
According to ISPRA’s mosaic, 89.6% of the territory of Saint-Oyen has high or very high landslide hazard (P3 and P4), with 36.9% of the residents. By share of territory with landslide hazard P3-P4, Saint-Oyen ranks 18th of 74 municipalities in the province of Valle d’Aosta.
How much of Saint-Oyen is in flood scenario P2?
13.8% of the territory of Saint-Oyen is in the flood area of the medium-probability scenario (P2), with 24% of the residents. By share of territory in the P2 flood area, Saint-Oyen ranks 8th of 74 municipalities in the province of Valle d’Aosta.
Guides: seismic zone · landslides and floods · what to check before an offer. OMI prices: GEOPOI (how to read them).
Nearby municipalities
| Municipality | Seismic zone | Landslide P3-P4 | Flood P2 |
|---|---|---|---|
| Etroubles | 3 | 78.9% | 5% |
| Saint-Rhémy-en-Bosses | 3 | 87.8% | 8.2% |
| Allein | 3 | 49.5% | 3% |
| Gignod | 3 | 54% | 5.8% |
| Doues | 3 | 67.5% | 4.7% |
| Sarre | 3 | 72.4% | 3.1% |
Sources: ISPRA IdroGEO, Civil Protection, Istat (25 October 2026).
Updated on