Arroyo, PR
Arroyo County in PR has 18 FEMA disaster declarations on record covering 1970–2022, most recently Hurricane Fiona on Sep 21, 2022 (DR-4671). Its flood risk grade is A (Low risk), ranking #375 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 Arroyo County
The 18 most recent federally declared disasters affecting Arroyo County, PR (1970–2022). Total declarations on record: 18.
| Declared | Incident Type | Title | FEMA Disaster # |
|---|---|---|---|
| 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 27, 2011 | Hurricane | Hurricane Irene | DR-4017 |
| 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 |
| Jan 22, 1992 | Flood | Severe Storms & Flooding | DR-931 |
| Sep 21, 1989 | Hurricane | Hurricane Hugo | DR-842 |
| 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 |
|---|---|---|---|---|
| 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 |
| Corozal | A | 17 | 0 | 17 |
More Counties in PR
Frequently Asked Questions
How many FEMA disaster declarations does Arroyo County, PR have?
Arroyo County, PR has 18 federal disaster declarations on FEMA record (1970–2022). The 5 most recent are: 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); Hurricane Maria (declared Sep 20, 2017, DR-4339). Counts include flood, severe storm, hurricane, and coastal storm declarations from the OpenFEMA DisasterDeclarationsSummaries dataset.
What is the flood risk grade for Arroyo County, PR?
Arroyo County is graded A (composite score 17/100, low risk). It ranks #375 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 Arroyo County?
0 NFIP flood insurance claims have been filed in Arroyo County, PR, totaling $0 in payouts. The average claim is $0. Source: FEMA FimaNfipClaims v2 dataset.
Has Arroyo County, PR had any recent flood disasters?
Yes. The most recent FEMA declaration affecting Arroyo County was Hurricane Fiona on Sep 21, 2022 (DR-4671). The county has 18 declared disasters in the OpenFEMA record covering 1970–2022.
this entity is one of the data points covered by this site’s U.S. flood risk, NFIP claims, and disaster declarations dataset. The detail above comes directly from FEMA OpenFEMA datasets including the National Flood Hazard Layer and NFIP claims; the context that follows situates the headline numbers against the broader distribution across U.S. ZIPs, counties, and states.
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.