Province of Como
Natural hazards and seismic zone municipality by municipality, for home buyers.
According to ISPRA’s mosaic, 8.1% of the territory of the province of Como has high or very high landslide hazard (P3 and P4), with 0.9% of the residents. 10.1% of the territory of the province of Como is in the flood area of the medium-probability scenario (P2), with 1.7% of the residents. Among Italy’s 107 provinces it ranks 42nd for landslide hazard P3-P4 and 38th for flood area (P2).
Municipalities by seismic zone: 147 in zone 4.
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Municipalities by share of territory in landslide class P3/P4
| San Nazzaro Val Cavargna | 49.8% |
|---|---|
| Cavargna | 42% |
| San Bartolomeo Val Cavargna | 41.9% |
| Garzeno | 30.5% |
| Corrido | 27.4% |
| Livo | 25.7% |
| Dongo | 24.4% |
| Lasnigo | 21.8% |
| Pigra | 20.1% |
| Valsolda | 20% |
Municipalities by share of territory in flood scenario P2
| Gera Lario | 79.6% |
|---|---|
| Campione d’Italia | 67.6% |
| Griante | 64.6% |
| Domaso | 61.1% |
| Argegno | 54.2% |
| Menaggio | 51.6% |
| San Siro | 42.6% |
| Pusiano | 41.8% |
| Claino con Osteno | 35.6% |
| Laglio | 34.3% |
All 147 municipalities
Landslides and floods in the province
| ISPRA indicator | CO | Lombardia |
|---|---|---|
| Landslide, very high hazard (P4) | 3.2% | 3.7% |
| Landslide, high hazard (P3) | 4.9% | 2.9% |
| Landslide, areas of attention | 0% | 0% |
| Residents in landslide areas P3-P4 | 0.9% | 0.4% |
| Buildings in landslide areas P3-P4 | 2.2% | 1.1% |
| Flood, high probability (P3) | 9.2% | 7.9% |
| Flood, medium probability (P2) | 10.1% | 10.2% |
| Flood, low probability (P1) | 11.4% | 20.3% |
| Residents in P2 flood areas | 1.7% | 4.4% |
| Buildings in P2 flood areas | 2.1% | 4.7% |
Sources: ISPRA IdroGEO, Civil Protection, Istat (25 October 2026).
Updated on