Hamlin, SD
Hamlin County in South Dakota has 10 FEMA disaster declarations on record covering 1969–2019, most recently Severe Storms and Flooding on Sep 23, 2019 (DR-4463). Its flood risk grade is A (Low risk), ranking #923 of 3,277 U.S. counties, with 11 NFIP flood insurance claims totaling $104,482 in payouts. Flood risk is relatively low compared to the national average.
FEMA Disaster Declarations in Hamlin County
The 10 most recent federally declared disasters affecting Hamlin County, SD (1969–2019). Total declarations on record: 10.
| Declared | Incident Type | Title | FEMA Disaster # |
|---|---|---|---|
| Sep 23, 2019 | Flood | Severe Storms and Flooding | DR-4463 |
| Jun 7, 2019 | Flood | Severe Winter Storm, Snowstorm, and Flooding | DR-4440 |
| May 13, 2011 | Flood | Flooding | DR-1984 |
| May 13, 2010 | Flood | Flooding | DR-1915 |
| Sep 10, 2005 | Coastal Storm | Hurricane Katrina Evacuation | DR-3234 |
| May 17, 2001 | Flood | Severe Winter Storms, Flooding, and Ice Jams | DR-1375 |
| Apr 7, 1997 | Flood | Severe Flooding, Sever Winter Storms,heavy Rains High Winds | DR-1173 |
| May 26, 1995 | Flood | Flooding | DR-1052 |
| May 3, 1986 | Flood | Severe Storms & Flooding | DR-764 |
| Apr 18, 1969 | Flood | Flooding | DR-257 |
Score Breakdown
The composite score of 13 is calculated from four weighted factors. See our methodology for details.
Other Counties in South Dakota
Frequently Asked Questions
How many FEMA disaster declarations does Hamlin County, SD have?
Hamlin County, SD has 10 federal disaster declarations on FEMA record (1969–2019). The 5 most recent are: Severe Storms and Flooding (declared Sep 23, 2019, DR-4463); Severe Winter Storm, Snowstorm, and Flooding (declared Jun 7, 2019, DR-4440); Flooding (declared May 13, 2011, DR-1984); Flooding (declared May 13, 2010, DR-1915); Hurricane Katrina Evacuation (declared Sep 10, 2005, DR-3234). Counts include flood, severe storm, hurricane, and coastal storm declarations from the OpenFEMA DisasterDeclarationsSummaries dataset.
What is the flood risk grade for Hamlin County, SD?
Hamlin County is graded A (composite score 13/100, low risk). It ranks #923 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 Hamlin County?
11 NFIP flood insurance claims have been filed in Hamlin County, SD, totaling $104,482 in payouts. The average claim is $9,498. Source: FEMA FimaNfipClaims v2 dataset.
Has Hamlin County, SD had any recent flood disasters?
Yes. The most recent FEMA declaration affecting Hamlin County was Severe Storms and Flooding on Sep 23, 2019 (DR-4463). The county has 10 declared disasters in the OpenFEMA record covering 1969–2019.
For this entity, the underlying data on this page comes from FEMA OpenFEMA datasets including the National Flood Hazard Layer and NFIP claims. The breakdown above is the federal record; the paragraphs below add the per-entity context that makes the headline numbers usable for a real decision rather than just a data lookup.
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.