San Sebastian, PR
San Sebastian County in PR has 17 FEMA disaster declarations on record covering 1970–2024, most recently Severe Storms, Flooding, Landslides, and Mudslides on Jul 23, 2024 (DR-4805). Its flood risk grade is A (Low risk), ranking #392 of 3,277 U.S. counties, with 0 NFIP flood insurance claims totaling $0 in payouts. Flood risk is relatively low compared to the national average.
FEMA Disaster Declarations in San Sebastian County
The 17 most recent federally declared disasters affecting San Sebastian County, PR (1970–2024). Total declarations on record: 17.
| Declared | Incident Type | Title | FEMA Disaster # |
|---|---|---|---|
| Jul 23, 2024 | Flood | Severe Storms, Flooding, Landslides, and Mudslides | DR-4805 |
| Sep 21, 2022 | Hurricane | Hurricane Fiona | DR-4671 |
| Sep 18, 2022 | Hurricane | Tropical Storm Fiona | DR-3583 |
| Aug 22, 2020 | Hurricane | Tropical Storm Laura | DR-3537 |
| Jul 29, 2020 | Hurricane | Potential Tropical Cyclone Nine | DR-3532 |
| Sep 20, 2017 | Hurricane | Hurricane Maria | DR-4339 |
| Sep 18, 2017 | Hurricane | Hurricane Maria | DR-3391 |
| Aug 22, 2011 | Hurricane | Hurricane Irene | DR-3326 |
| Nov 17, 1999 | Hurricane | Hurricane Lenny | DR-3151 |
| Sep 24, 1998 | Hurricane | Hurricane Georges - 18 Sep 98 | DR-1247 |
| Sep 11, 1996 | Hurricane | Hurricane Hortense | DR-1136 |
| Jul 10, 1986 | Flood | Heavy Rains, Flooding & Mudslides | DR-768 |
| Oct 10, 1985 | Flood | Severe Storms, Flooding & Mudslides | DR-746 |
| Sep 2, 1979 | Hurricane | Hurricane David | DR-597 |
| Sep 19, 1975 | Flood | Tropical Storm Elioise | DR-483 |
| Nov 30, 1974 | Flood | Flooding | DR-455 |
| Oct 12, 1970 | Flood | Heavy Rains & Flooding | DR-296 |
Score Breakdown
The composite score of 17 is calculated from four weighted factors. See our methodology for details.
Other Counties in PR
| County | Grade | Score | Claims | Disasters |
|---|---|---|---|---|
| Arroyo | A | 17 | 0 | 18 |
| Bayamon | A | 17 | 5 | 17 |
| Carolina | A | 17 | 6 | 18 |
| Catano | A | 17 | 0 | 17 |
| Ceiba | A | 17 | 0 | 18 |
| Cidra | A | 17 | 0 | 18 |
More Counties in PR
Frequently Asked Questions
How many FEMA disaster declarations does San Sebastian County, PR have?
San Sebastian County, PR has 17 federal disaster declarations on FEMA record (1970–2024). The 5 most recent are: Severe Storms, Flooding, Landslides, and Mudslides (declared Jul 23, 2024, DR-4805); Hurricane Fiona (declared Sep 21, 2022, DR-4671); Tropical Storm Fiona (declared Sep 18, 2022, DR-3583); Tropical Storm Laura (declared Aug 22, 2020, DR-3537); Potential Tropical Cyclone Nine (declared Jul 29, 2020, DR-3532). Counts include flood, severe storm, hurricane, and coastal storm declarations from the OpenFEMA DisasterDeclarationsSummaries dataset.
What is the flood risk grade for San Sebastian County, PR?
San Sebastian County is graded A (composite score 17/100, low risk). It ranks #392 of 3,277 U.S. counties for flood risk in our scoring model. The grade combines NFIP claims density (40%), disaster frequency (25%), claim severity (20%), and year-over-year trend (15%).
How many NFIP flood insurance claims have been filed in San Sebastian County?
0 NFIP flood insurance claims have been filed in San Sebastian County, PR, totaling $0 in payouts. The average claim is $0. Source: FEMA FimaNfipClaims v2 dataset.
Has San Sebastian County, PR had any recent flood disasters?
Yes. The most recent FEMA declaration affecting San Sebastian County was Severe Storms, Flooding, Landslides, and Mudslides on Jul 23, 2024 (DR-4805). The county has 17 declared disasters in the OpenFEMA record covering 1970–2024.
The this entity record above pulls directly from FEMA OpenFEMA datasets including the National Flood Hazard Layer and NFIP claims. What follows is the per-entity context — how this entity sits in the broader U.S. flood risk, NFIP claims, and disaster declarations distribution and which underlying factors drive the headline numbers.
The methodology behind every numeric value on this page is publicly documented on the FEMA OpenFEMA datasets including the National Flood Hazard Layer and NFIP claims portal and described in detail on this site’s methodology page. Refresh cadence varies by underlying series; the page surfaces the as-of date for each number so readers can trace any figure back to the source release.
For readers using this page as a decision input, the related-entity pages elsewhere on the site provide the comparison set. The most useful comparison for this entity is typically a peer within U.S. ZIPs, counties, and states with similar size, similar exposure, or similar geography — not the national-level summary alone.
Source: FEMA OpenFEMA datasets, 2026.