Buying a home in Castel Sant’Angelo
1,195 residents at the 2021 census, 1,013 buildings and 31.3 km² of territory, Lazio.
Castel Sant’Angelo is in seismic zone 1: the most hazardous zone: the probability of a strong earthquake is high. According to ISPRA’s mosaic, 3% of the territory of Castel Sant’Angelo has high or very high landslide hazard (P3 and P4), with 11.6% of the residents. 9.5% of the territory of Castel Sant’Angelo is in the flood area of the medium-probability scenario (P2), with 30.6% of the residents.
Find your address in Castel Sant’Angelo
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Castel Sant’Angelo compared
| ISPRA indicator | Castel Sant'Angelo | RI | Lazio |
|---|---|---|---|
| Landslide, very high hazard (P4) | 1.8% | 0.4% | 4.3% |
| Landslide, high hazard (P3) | 1.2% | 2.2% | 1.2% |
| Landslide, areas of attention | 0% | 0% | 8.3% |
| Residents in landslide areas P3-P4 | 11.6% | 2.4% | 1.5% |
| Buildings in landslide areas P3-P4 | 8.7% | 3.6% | 3.2% |
| Flood, high probability (P3) | 9.2% | 3.3% | 2.6% |
| Flood, medium probability (P2) | 9.5% | 3.6% | 3.5% |
| Flood, low probability (P1) | 9.6% | 3.6% | 5.7% |
| Residents in P2 flood areas | 30.6% | 5.4% | 3.2% |
| Buildings in P2 flood areas | 18.1% | 3.3% | 3.4% |
Questions
Which seismic zone is Castel Sant’Angelo in?
Castel Sant’Angelo is in seismic zone 1: the most hazardous zone: the probability of a strong earthquake is high.
How much of Castel Sant’Angelo is in landslide class P3/P4?
According to ISPRA’s mosaic, 3% of the territory of Castel Sant’Angelo has high or very high landslide hazard (P3 and P4), with 11.6% of the residents. By share of territory with landslide hazard P3-P4, Castel Sant’Angelo ranks 26th of 73 municipalities in the province of Rieti.
How much of Castel Sant’Angelo is in flood scenario P2?
9.5% of the territory of Castel Sant’Angelo is in the flood area of the medium-probability scenario (P2), with 30.6% of the residents. By share of territory in the P2 flood area, Castel Sant’Angelo ranks 9th of 73 municipalities in the province of Rieti.
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 |
|---|---|---|---|
| Borgo Velino | 1 | 2.6% | 0.9% |
| Cittaducale | 2A | 1.4% | 6.2% |
| Micigliano | 1 | 1.8% | 0% |
| Antrodoco | 1 | 3.1% | 0.2% |
| Concerviano | 2B | 0.4% | 0% |
| Cantalice | 2A | 0.7% | 0% |
Sources: ISPRA IdroGEO, Civil Protection, Istat (25 October 2026).
Updated on