Buying a home in Sezze
23,726 residents at the 2021 census, 7,141 buildings and 100.5 km² of territory, Lazio.
Sezze is in seismic zone 3 (the region uses the sub-zones 3B): in this zone strong earthquakes are less likely than in zones 1 and 2. According to ISPRA’s mosaic, 8.3% of the territory of Sezze has high or very high landslide hazard (P3 and P4), with 5.2% of the residents. 2.1% of the territory of Sezze is in the flood area of the medium-probability scenario (P2), with 1.7% of the residents.
Find your address in Sezze
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Sezze compared
| ISPRA indicator | Sezze | LT | Lazio |
|---|---|---|---|
| Landslide, very high hazard (P4) | 8.1% | 5% | 4.3% |
| Landslide, high hazard (P3) | 0.2% | 0.2% | 1.2% |
| Landslide, areas of attention | 0.6% | 4.7% | 8.3% |
| Residents in landslide areas P3-P4 | 5.2% | 1.8% | 1.5% |
| Buildings in landslide areas P3-P4 | 4.8% | 2.8% | 3.2% |
| Flood, high probability (P3) | 0.7% | 1.4% | 2.6% |
| Flood, medium probability (P2) | 2.1% | 2.9% | 3.5% |
| Flood, low probability (P1) | 51.6% | 12.4% | 5.7% |
| Residents in P2 flood areas | 1.7% | 1.6% | 3.2% |
| Buildings in P2 flood areas | 1.4% | 2.1% | 3.4% |
Questions
Which seismic zone is Sezze in?
Sezze is in seismic zone 3 (the region uses the sub-zones 3B): in this zone strong earthquakes are less likely than in zones 1 and 2.
How much of Sezze is in landslide class P3/P4?
According to ISPRA’s mosaic, 8.3% of the territory of Sezze has high or very high landslide hazard (P3 and P4), with 5.2% of the residents. By share of territory with landslide hazard P3-P4, Sezze ranks 14th of 33 municipalities in the province of Latina.
How much of Sezze is in flood scenario P2?
2.1% of the territory of Sezze is in the flood area of the medium-probability scenario (P2), with 1.7% of the residents. By share of territory in the P2 flood area, Sezze ranks 13th of 33 municipalities in the province of Latina.
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 |
|---|---|---|---|
| Bassiano | 3A | 3.5% | 0.5% |
| Roccagorga | 3A | 0.9% | 0.7% |
| Sermoneta | 3A | 5.7% | 2.7% |
| Priverno | 3A | 1.1% | 7.1% |
| Pontinia | 3B | 0.1% | 6% |
| Maenza | 3A | 1.7% | 0.2% |
Sources: ISPRA IdroGEO, Civil Protection, Istat (25 October 2026).
Updated on