Buying a home in Grondona
476 residents at the 2021 census, 977 buildings and 25.9 km² of territory, Piemonte.
Grondona is in seismic zone 3: in this zone strong earthquakes are less likely than in zones 1 and 2. According to ISPRA’s mosaic, 11.1% of the territory of Grondona has high or very high landslide hazard (P3 and P4), with 2.7% of the residents. 4.1% of the territory of Grondona is in the flood area of the medium-probability scenario (P2), with 16% of the residents.
Find your address in Grondona
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Grondona compared
| ISPRA indicator | Grondona | AL | Piemonte |
|---|---|---|---|
| Landslide, very high hazard (P4) | 4.9% | 2.7% | 3.1% |
| Landslide, high hazard (P3) | 6.2% | 3.9% | 3.7% |
| Landslide, areas of attention | 0% | 0% | 0% |
| Residents in landslide areas P3-P4 | 2.7% | 1.1% | 1.8% |
| Buildings in landslide areas P3-P4 | 5.9% | 3.8% | 4.4% |
| Flood, high probability (P3) | 4.1% | 9.2% | 5.1% |
| Flood, medium probability (P2) | 4.1% | 11.9% | 8.3% |
| Flood, low probability (P1) | 4.1% | 19.5% | 13% |
| Residents in P2 flood areas | 16% | 3.2% | 4.9% |
| Buildings in P2 flood areas | 15.8% | 4% | 5.8% |
Questions
Which seismic zone is Grondona in?
Grondona is in seismic zone 3: in this zone strong earthquakes are less likely than in zones 1 and 2.
How much of Grondona is in landslide class P3/P4?
According to ISPRA’s mosaic, 11.1% of the territory of Grondona has high or very high landslide hazard (P3 and P4), with 2.7% of the residents. By share of territory with landslide hazard P3-P4, Grondona ranks 39th of 187 municipalities in the province of Alessandria.
How much of Grondona is in flood scenario P2?
4.1% of the territory of Grondona is in the flood area of the medium-probability scenario (P2), with 16% of the residents. By share of territory in the P2 flood area, Grondona ranks 117th of 187 municipalities in the province of Alessandria.
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 |
|---|---|---|---|
| Roccaforte Ligure | 3 | 23.2% | 1.5% |
| Isola del Cantone | 3 | 9.4% | 1.2% |
| Borghetto di Borbera | 3 | 3.6% | 7.9% |
| Vignole Borbera | 3 | 1.1% | 14.8% |
| Arquata Scrivia | 3 | 1.6% | 7.6% |
| Rocchetta Ligure | 3 | 27.1% | 12.4% |
Sources: ISPRA IdroGEO, Civil Protection, Istat (25 October 2026).
Updated on