Highest climate-risk ZIP codes in Puerto Rico
Top 1 highest FEMA NRI climate-risk counties in Puerto Rico (one representative ZIP per county). #1 is 00601 (Adjuntas zona urbana) at score 68.2. Compare hazard exposure on US5.
FEMA’s National Risk Index is published at the county level on US5, so every ZIP in the same county shares the same composite score. This board shows one representative ZIP per county (the most populous code in that county) ranked by NRI — a relative signal of natural-hazard exposure for planning and insurance context.
Highest county scores on this board: Adjuntas Municipio (00601) at 68.2.
Open a representative ZIP for flood, wildfire, and hurricane component scores, plus a plain-language risk summary.
Open any ZIP for a full demographics, income, and housing profile, or return to the Puerto Rico state page for the complete ZIP table.
Ranked counties (representative ZIP)
FEMA NRI is county-level data. Each row shows the most populous ZIP in that county as a representative entry.
| # | ZIP | City | County | NRI risk score | Population | Income | Home value |
|---|---|---|---|---|---|---|---|
| 1 | 00601 | Adjuntas zona urbana | Adjuntas Municipio | 68.2 | 16,721 | $18,571 | $89,500 |
Frequently asked questions
Which areas in Puerto Rico have the highest climate or disaster risk?
FEMA NRI scores are county-level on US5. Adjuntas Municipio ranks near the top at 68.2 (representative ZIP 00601). Higher scores indicate greater relative natural-hazard exposure.
How does US5 rank ZIP codes in Puerto Rico?
We rank one representative ZIP per county (highest population in the county) by FEMA NRI composite score from high to low. NRI is county-level data, so all ZIPs in a county share the same score.
Where can I explore all ZIP codes in Puerto Rico?
Visit the Puerto Rico state page for the full ZIP table, demographics summary, and sortable income/housing columns.