Natural disaster risk in Puerto Rico, by county
All 78 municipios in Puerto Rico, ranked by FEMA's National Risk Index composite risk score, with each one's highest-rated hazard. Other states
At a glance
0
Very high risk
0
Relatively high risk
0
Relatively moderate risk
0
Relatively low risk
0
Very low risk
Highest overall risk: Adjuntas Municipio (insufficient data, score 0.0).
All municipios, highest risk first
| # | Municipio | Overall risk | Highest-rated hazard |
|---|---|---|---|
| — | Adjuntas Municipio | Insufficient data | — |
| — | Aguada Municipio | Insufficient data | — |
| — | Aguadilla Municipio | Insufficient data | — |
| — | Aguas Buenas Municipio | Insufficient data | — |
| — | Aibonito Municipio | Insufficient data | — |
| — | Añasco Municipio | Insufficient data | — |
| — | Arecibo Municipio | Insufficient data | — |
| — | Arroyo Municipio | Insufficient data | — |
| — | Barceloneta Municipio | Insufficient data | — |
| — | Barranquitas Municipio | Insufficient data | — |
| — | Bayamón Municipio | Insufficient data | — |
| — | Cabo Rojo Municipio | Insufficient data | — |
| — | Caguas Municipio | Insufficient data | — |
| — | Camuy Municipio | Insufficient data | — |
| — | Canóvanas Municipio | Insufficient data | — |
| — | Carolina Municipio | Insufficient data | — |
| — | Cataño Municipio | Insufficient data | — |
| — | Cayey Municipio | Insufficient data | — |
| — | Ceiba Municipio | Insufficient data | — |
| — | Ciales Municipio | Insufficient data | — |
| — | Cidra Municipio | Insufficient data | — |
| — | Coamo Municipio | Insufficient data | — |
| — | Comerío Municipio | Insufficient data | — |
| — | Corozal Municipio | Insufficient data | — |
| — | Culebra Municipio | Insufficient data | — |
| — | Dorado Municipio | Insufficient data | — |
| — | Fajardo Municipio | Insufficient data | — |
| — | Florida Municipio | Insufficient data | — |
| — | Guánica Municipio | Insufficient data | — |
| — | Guayama Municipio | Insufficient data | — |
| — | Guayanilla Municipio | Insufficient data | — |
| — | Guaynabo Municipio | Insufficient data | — |
| — | Gurabo Municipio | Insufficient data | — |
| — | Hatillo Municipio | Insufficient data | — |
| — | Hormigueros Municipio | Insufficient data | — |
| — | Humacao Municipio | Insufficient data | — |
| — | Isabela Municipio | Insufficient data | — |
| — | Jayuya Municipio | Insufficient data | — |
| — | Juana Díaz Municipio | Insufficient data | — |
| — | Juncos Municipio | Insufficient data | — |
| — | Lajas Municipio | Insufficient data | — |
| — | Lares Municipio | Insufficient data | — |
| — | Las Marías Municipio | Insufficient data | — |
| — | Las Piedras Municipio | Insufficient data | — |
| — | Loíza Municipio | Insufficient data | — |
| — | Luquillo Municipio | Insufficient data | — |
| — | Manatí Municipio | Insufficient data | — |
| — | Maricao Municipio | Insufficient data | — |
| — | Maunabo Municipio | Insufficient data | — |
| — | Mayagüez Municipio | Insufficient data | — |
| — | Moca Municipio | Insufficient data | — |
| — | Morovis Municipio | Insufficient data | — |
| — | Naguabo Municipio | Insufficient data | — |
| — | Naranjito Municipio | Insufficient data | — |
| — | Orocovis Municipio | Insufficient data | — |
| — | Patillas Municipio | Insufficient data | — |
| — | Peñuelas Municipio | Insufficient data | — |
| — | Ponce Municipio | Insufficient data | — |
| — | Quebradillas Municipio | Insufficient data | — |
| — | Rincón Municipio | Insufficient data | — |
| — | Río Grande Municipio | Insufficient data | — |
| — | Sabana Grande Municipio | Insufficient data | — |
| — | Salinas Municipio | Insufficient data | — |
| — | San Germán Municipio | Insufficient data | — |
| — | San Juan Municipio | Insufficient data | — |
| — | San Lorenzo Municipio | Insufficient data | — |
| — | San Sebastián Municipio | Insufficient data | — |
| — | Santa Isabel Municipio | Insufficient data | — |
| — | Toa Alta Municipio | Insufficient data | — |
| — | Toa Baja Municipio | Insufficient data | — |
| — | Trujillo Alto Municipio | Insufficient data | — |
| — | Utuado Municipio | Insufficient data | — |
| — | Vega Alta Municipio | Insufficient data | — |
| — | Vega Baja Municipio | Insufficient data | — |
| — | Vieques Municipio | Insufficient data | — |
| — | Villalba Municipio | Insufficient data | — |
| — | Yabucoa Municipio | Insufficient data | — |
| — | Yauco Municipio | Insufficient data | — |
How to read these ratings
- Ratings run in five steps: very low, relatively low, relatively moderate, relatively high and very high. They compare a county with every other US county; they are not a measure of danger on their own.
- Scores run from 0 to 100 and are national percentiles. The bar shows the score: a score of 80 means a higher value than 80% of US counties.
- Overall risk combines the expected annual loss with social vulnerability and community resilience.
- Expected annual loss is the average yearly loss to buildings, people and agriculture the model expects from all 18 hazards.
- Social vulnerability describes how hard it may be for people to prepare for and recover from a disaster. Higher is worse.
- Community resilience describes a community's ability to prepare, adapt and recover. Higher is better.
- "Not applicable" means FEMA does not model that hazard there (for example, hurricanes far inland).
About this data
Source: FEMA National Risk Index, version 1.20, released December 2025, published by the Federal Emergency Management Agency (US public domain). About the National Risk Index. The index is a model of relative risk built from historical hazard records, what is exposed and community factors. It is not a forecast, it does not describe any single property, and it is not insurance or financial advice. For decisions about a specific address, check FEMA's flood maps and your local emergency management office.
Questions
Which municipio in Puerto Rico has the highest natural disaster risk?
Adjuntas Municipio has the highest composite risk score in Puerto Rico in FEMA's National Risk Index: 0.0, rated insufficient data.
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