Buying a home in Isola del Giglio
1,344 residents at the 2021 census, 2,023 buildings and 23.9 km² of territory, Toscana.
Isola del Giglio is in seismic zone 4: the least hazardous zone: the probability of an earthquake is very low. According to ISPRA’s mosaic, 26.8% of the territory of Isola del Giglio has high or very high landslide hazard (P3 and P4), with 10.8% of the residents. 5.4% of the territory of Isola del Giglio is in the flood area of the medium-probability scenario (P2), with 9% of the residents.
Find your address in Isola del Giglio
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Isola del Giglio compared
| ISPRA indicator | Isola del Giglio | GR | Toscana |
|---|---|---|---|
| Landslide, very high hazard (P4) | 1.8% | 5.1% | 4.6% |
| Landslide, high hazard (P3) | 25% | 18.6% | 16.4% |
| Landslide, areas of attention | 0% | 0% | 0.6% |
| Residents in landslide areas P3-P4 | 10.8% | 6.9% | 5% |
| Buildings in landslide areas P3-P4 | 7.7% | 11.1% | 8.1% |
| Flood, high probability (P3) | 5.2% | 9.5% | 6.2% |
| Flood, medium probability (P2) | 5.4% | 15.2% | 12.2% |
| Flood, low probability (P1) | 5.4% | 28.5% | 21.2% |
| Residents in P2 flood areas | 9% | 8.8% | 25.6% |
| Buildings in P2 flood areas | 12% | 8.8% | 22.2% |
Questions
Which seismic zone is Isola del Giglio in?
Isola del Giglio is in seismic zone 4: the least hazardous zone: the probability of an earthquake is very low.
How much of Isola del Giglio is in landslide class P3/P4?
According to ISPRA’s mosaic, 26.8% of the territory of Isola del Giglio has high or very high landslide hazard (P3 and P4), with 10.8% of the residents. By share of territory with landslide hazard P3-P4, Isola del Giglio ranks 14th of 28 municipalities in the province of Grosseto.
How much of Isola del Giglio is in flood scenario P2?
5.4% of the territory of Isola del Giglio is in the flood area of the medium-probability scenario (P2), with 9% of the residents. By share of territory in the P2 flood area, Isola del Giglio ranks 17th of 28 municipalities in the province of Grosseto.
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 |
|---|---|---|---|
| Monte Argentario | 4 | 35.7% | 2.6% |
| Orbetello | 4 | 2.7% | 40.1% |
| Capalbio | 4 | 28.4% | 21.1% |
| Magliano in Toscana | 4 | 14% | 12.5% |
| Manciano | 3 | 45.4% | 22.5% |
| Grosseto | 4 | 8.5% | 35.5% |
Sources: ISPRA IdroGEO, Civil Protection, Istat (25 October 2026).
Updated on