Buying a home in Grosseto
81,503 residents at the 2021 census, 21,206 buildings and 473.5 km² of territory, Toscana.
Grosseto is in seismic zone 4: the least hazardous zone: the probability of an earthquake is very low. According to ISPRA’s mosaic, 8.5% of the territory of Grosseto has high or very high landslide hazard (P3 and P4), with 0.6% of the residents. 35.5% of the territory of Grosseto is in the flood area of the medium-probability scenario (P2), with 4.6% of the residents.
Find your address in Grosseto
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Grosseto compared
| ISPRA indicator | Grosseto | GR | Toscana |
|---|---|---|---|
| Landslide, very high hazard (P4) | 0.4% | 5.1% | 4.6% |
| Landslide, high hazard (P3) | 8.1% | 18.6% | 16.4% |
| Landslide, areas of attention | 0% | 0% | 0.6% |
| Residents in landslide areas P3-P4 | 0.6% | 6.9% | 5% |
| Buildings in landslide areas P3-P4 | 1.2% | 11.1% | 8.1% |
| Flood, high probability (P3) | 24% | 9.5% | 6.2% |
| Flood, medium probability (P2) | 35.5% | 15.2% | 12.2% |
| Flood, low probability (P1) | 77% | 28.5% | 21.2% |
| Residents in P2 flood areas | 4.6% | 8.8% | 25.6% |
| Buildings in P2 flood areas | 7.8% | 8.8% | 22.2% |
Questions
Which seismic zone is Grosseto in?
Grosseto is in seismic zone 4: the least hazardous zone: the probability of an earthquake is very low.
How much of Grosseto is in landslide class P3/P4?
According to ISPRA’s mosaic, 8.5% of the territory of Grosseto has high or very high landslide hazard (P3 and P4), with 0.6% of the residents. By share of territory with landslide hazard P3-P4, Grosseto ranks 24th of 28 municipalities in the province of Grosseto.
How much of Grosseto is in flood scenario P2?
35.5% of the territory of Grosseto is in the flood area of the medium-probability scenario (P2), with 4.6% of the residents. By share of territory in the P2 flood area, Grosseto ranks 2nd 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 |
|---|---|---|---|
| Castiglione della Pescaia | 4 | 17% | 32.5% |
| Magliano in Toscana | 4 | 14% | 12.5% |
| Campagnatico | 3 | 13.9% | 12.4% |
| Scansano | 3 | 30.1% | 4.5% |
| Gavorrano | 4 | 9.2% | 21.8% |
| Scarlino | 4 | 2.4% | 19.1% |
Sources: ISPRA IdroGEO, Civil Protection, Istat (25 October 2026).
Updated on