Buying a home in Custonaci
5,306 residents at the 2021 census, 2,530 buildings and 69.9 km² of territory, Sicilia.
Custonaci is in seismic zone 2: in this zone strong earthquakes are possible. According to ISPRA’s mosaic, 21% of the territory of Custonaci has high or very high landslide hazard (P3 and P4), with 2% of the residents. 0% of the territory of Custonaci is in the flood area of the medium-probability scenario (P2), with 0% of the residents.
Find your address in Custonaci
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Custonaci compared
| ISPRA indicator | Custonaci | TP | Sicilia |
|---|---|---|---|
| Landslide, very high hazard (P4) | 21% | 3.5% | 2.2% |
| Landslide, high hazard (P3) | 0% | 0.2% | 0.8% |
| Landslide, areas of attention | 2.5% | 0.7% | 1.4% |
| Residents in landslide areas P3-P4 | 2% | 1.6% | 1.9% |
| Buildings in landslide areas P3-P4 | 7.9% | 2.4% | 2.4% |
| Flood, high probability (P3) | 0% | 0.9% | 1.6% |
| Flood, medium probability (P2) | 0% | 0.9% | 1.9% |
| Flood, low probability (P1) | 0% | 1% | 2.2% |
| Residents in P2 flood areas | 0% | 0.6% | 2.6% |
| Buildings in P2 flood areas | 0% | 0.7% | 2.3% |
Questions
Which seismic zone is Custonaci in?
Custonaci is in seismic zone 2: in this zone strong earthquakes are possible.
How much of Custonaci is in landslide class P3/P4?
According to ISPRA’s mosaic, 21% of the territory of Custonaci has high or very high landslide hazard (P3 and P4), with 2% of the residents. By share of territory with landslide hazard P3-P4, Custonaci ranks 3rd of 25 municipalities in the free municipal consortium of Trapani.
How much of Custonaci is in flood scenario P2?
0% of the territory of Custonaci is in the flood area of the medium-probability scenario (P2), with 0% of the residents. In the free municipal consortium of Trapani, 11 of 25 municipalities have no territory in the P2 flood area.
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 |
|---|---|---|---|
| San Vito Lo Capo | 2 | 24.8% | 0% |
| Buseto Palizzolo | 2 | 0.4% | 0% |
| Valderice | 2 | 2.8% | 0% |
| Castellammare del Golfo | 2 | 14.7% | 0.7% |
| Erice | 2 | 13.5% | 0.3% |
| Trapani | 2 | 0% | 0% |
Sources: ISPRA IdroGEO, Civil Protection, Istat (25 October 2026).
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