Allendale, SC
Allendale County in South Carolina has 15 FEMA disaster declarations on record covering 1999–2024, most recently Hurricane Helene on Sep 29, 2024 (DR-4829). Its flood risk grade is A (Low risk), ranking #456 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 Allendale County
The 15 most recent federally declared disasters affecting Allendale County, SC (1999–2024). Total declarations on record: 15.
| Declared | Incident Type | Title | FEMA Disaster # |
|---|---|---|---|
| Sep 29, 2024 | Hurricane | Hurricane Helene | DR-4829 |
| Aug 31, 2023 | Hurricane | Hurricane Idalia | DR-3597 |
| Nov 21, 2022 | Hurricane | Hurricane Ian | DR-4677 |
| Sep 29, 2022 | Hurricane | Hurricane Ian | DR-3585 |
| Sep 30, 2019 | Hurricane | Hurricane Dorian | DR-4464 |
| Sep 1, 2019 | Hurricane | Hurricane Dorian | DR-3421 |
| Sep 10, 2018 | Hurricane | Hurricane Florence | DR-3400 |
| Oct 16, 2017 | Hurricane | Hurricane Irma | DR-4346 |
| Sep 7, 2017 | Hurricane | Hurricane Irma | DR-3386 |
| Oct 11, 2016 | Hurricane | Hurricane Matthew | DR-4286 |
| Oct 6, 2016 | Hurricane | Hurricane Matthew | DR-3378 |
| Oct 5, 2015 | Flood | Severe Storms and Flooding | DR-4241 |
| Sep 10, 2005 | Hurricane | Hurricane Katrina Evacuation | DR-3233 |
| Sep 21, 1999 | Hurricane | Hurricane Floyd Major Disaster Declarations | DR-1299 |
| Sep 15, 1999 | Hurricane | Hurricane Floyd Emergency Declarations | DR-3145 |
Score Breakdown
The composite score of 16 is calculated from four weighted factors. See our methodology for details.
Other Counties in South Carolina
| County | Grade | Score | Claims | Disasters |
|---|---|---|---|---|
| Bamberg | A | 16 | 2 | 15 |
| Chesterfield | A | 16 | 0 | 16 |
| Lancaster | A | 16 | 2 | 15 |
| Lee | A | 16 | 2 | 16 |
| Marlboro | A | 16 | 4 | 16 |
| Georgetown | A | 16 | 281 | 19 |
More Counties in South Carolina
Frequently Asked Questions
How many FEMA disaster declarations does Allendale County, SC have?
Allendale County, SC has 15 federal disaster declarations on FEMA record (1999–2024). The 5 most recent are: Hurricane Helene (declared Sep 29, 2024, DR-4829); Hurricane Idalia (declared Aug 31, 2023, DR-3597); Hurricane Ian (declared Nov 21, 2022, DR-4677); Hurricane Ian (declared Sep 29, 2022, DR-3585); Hurricane Dorian (declared Sep 30, 2019, DR-4464). Counts include flood, severe storm, hurricane, and coastal storm declarations from the OpenFEMA DisasterDeclarationsSummaries dataset.
What is the flood risk grade for Allendale County, SC?
Allendale County is graded A (composite score 16/100, low risk). It ranks #456 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 Allendale County?
0 NFIP flood insurance claims have been filed in Allendale County, SC, totaling $0 in payouts. The average claim is $0. Source: FEMA FimaNfipClaims v2 dataset.
Has Allendale County, SC had any recent flood disasters?
Yes. The most recent FEMA declaration affecting Allendale County was Hurricane Helene on Sep 29, 2024 (DR-4829). The county has 15 declared disasters in the OpenFEMA record covering 1999–2024.
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.
Every number on this page links back to FEMA OpenFEMA datasets including the National Flood Hazard Layer and NFIP claims; the methodology page describes the inputs, refresh cadence, and known limitations of the underlying data product.
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.