Buying a home in Castano Primo
10,862 residents at the 2021 census, 2,444 buildings and 19.2 km² of territory, Lombardia.
Castano Primo is in seismic zone 4: the least hazardous zone: the probability of an earthquake is very low. According to ISPRA’s mosaic, 0% of the territory of Castano Primo has high or very high landslide hazard (P3 and P4), with 0% of the residents. 12.2% of the territory of Castano Primo is in the flood area of the medium-probability scenario (P2), with 0.1% of the residents.
Find your address in Castano Primo
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Castano Primo compared
| ISPRA indicator | Castano Primo | MI | Lombardia |
|---|---|---|---|
| Landslide, very high hazard (P4) | 0% | 0% | 3.7% |
| Landslide, high hazard (P3) | 0% | 0% | 2.9% |
| Landslide, areas of attention | 0% | 0% | 0% |
| Residents in landslide areas P3-P4 | 0% | 0% | 0.4% |
| Buildings in landslide areas P3-P4 | 0% | 0% | 1.1% |
| Flood, high probability (P3) | 12.2% | 4% | 7.9% |
| Flood, medium probability (P2) | 12.2% | 6.7% | 10.2% |
| Flood, low probability (P1) | 25.2% | 10.9% | 20.3% |
| Residents in P2 flood areas | 0.1% | 3.8% | 4.4% |
| Buildings in P2 flood areas | 0.1% | 3.8% | 4.7% |
Questions
Which seismic zone is Castano Primo in?
Castano Primo is in seismic zone 4: the least hazardous zone: the probability of an earthquake is very low.
How much of Castano Primo is in landslide class P3/P4?
According to ISPRA’s mosaic, 0% of the territory of Castano Primo has high or very high landslide hazard (P3 and P4), with 0% of the residents. In the Metropolitan City of Milano, 132 of 133 municipalities have no territory with landslide hazard P3-P4.
How much of Castano Primo is in flood scenario P2?
12.2% of the territory of Castano Primo is in the flood area of the medium-probability scenario (P2), with 0.1% of the residents. By share of territory in the P2 flood area, Castano Primo ranks 22nd of 133 municipalities in the Metropolitan City of Milano.
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 |
|---|---|---|---|
| Nosate | 4 | 0% | 39.8% |
| Robecchetto con Induno | 4 | 0% | 13.9% |
| Turbigo | 4 | 0% | 19.6% |
| Vanzaghello | 4 | 0% | 2.2% |
| Buscate | 4 | 0% | 0% |
| Lonate Pozzolo | 4 | 0% | 14.2% |
Sources: ISPRA IdroGEO, Civil Protection, Istat (25 October 2026).
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