Buying a home in Guidonia Montecelio
88,642 residents at the 2021 census, 11,607 buildings and 79.8 km² of territory, Lazio.
Guidonia Montecelio is in seismic zone 2 (the region uses the sub-zones 2B): in this zone strong earthquakes are possible. According to ISPRA’s mosaic, 0.7% of the territory of Guidonia Montecelio has high or very high landslide hazard (P3 and P4), with 0% of the residents. 1.7% of the territory of Guidonia Montecelio is in the flood area of the medium-probability scenario (P2), with 0.2% of the residents.
Find your address in Guidonia Montecelio
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Guidonia Montecelio compared
| ISPRA indicator | Guidonia Montecelio | RM | Lazio |
|---|---|---|---|
| Landslide, very high hazard (P4) | 0% | 2.1% | 4.3% |
| Landslide, high hazard (P3) | 0.7% | 0.6% | 1.2% |
| Landslide, areas of attention | 0% | 6.5% | 8.3% |
| Residents in landslide areas P3-P4 | 0% | 0.6% | 1.5% |
| Buildings in landslide areas P3-P4 | 0.1% | 1.2% | 3.2% |
| Flood, high probability (P3) | 1.5% | 3.4% | 2.6% |
| Flood, medium probability (P2) | 1.7% | 4.7% | 3.5% |
| Flood, low probability (P1) | 37.3% | 7% | 5.7% |
| Residents in P2 flood areas | 0.2% | 3.6% | 3.2% |
| Buildings in P2 flood areas | 0.2% | 4.5% | 3.4% |
Questions
Which seismic zone is Guidonia Montecelio in?
Guidonia Montecelio is in seismic zone 2 (the region uses the sub-zones 2B): in this zone strong earthquakes are possible.
How much of Guidonia Montecelio is in landslide class P3/P4?
According to ISPRA’s mosaic, 0.7% of the territory of Guidonia Montecelio has high or very high landslide hazard (P3 and P4), with 0% of the residents. By share of territory with landslide hazard P3-P4, Guidonia Montecelio ranks 81st of 121 municipalities in the Metropolitan City of Roma.
How much of Guidonia Montecelio is in flood scenario P2?
1.7% of the territory of Guidonia Montecelio is in the flood area of the medium-probability scenario (P2), with 0.2% of the residents. By share of territory in the P2 flood area, Guidonia Montecelio ranks 28th of 121 municipalities in the Metropolitan City of Roma.
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 |
|---|---|---|---|
| Sant’Angelo Romano | 2B | 2.1% | 0% |
| Fonte Nuova | 2B | 2.5% | 0% |
| Mentana | 2B | 0.7% | 0% |
| Tivoli | 2B | 0.2% | 7.2% |
| Marcellina | 2B | 0.1% | 0% |
| Palombara Sabina | 2B | 1.2% | 0% |
Sources: ISPRA IdroGEO, Civil Protection, Istat (25 October 2026).
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