Grant, SD
Grant County in South Dakota has 10 FEMA disaster declarations on record covering 1969–2023, most recently Flooding on Jul 6, 2023 (DR-4718). Its flood risk grade is A (Low risk), ranking #759 of 3,277 U.S. counties, with 1 NFIP flood insurance claims totaling $15,878 in payouts. Flood risk is relatively low compared to the national average.
FEMA Disaster Declarations in Grant County
The 10 most recent federally declared disasters affecting Grant County, SD (1969–2023). Total declarations on record: 10.
| Declared | Incident Type | Title | FEMA Disaster # |
|---|---|---|---|
| Jul 6, 2023 | Flood | Flooding | DR-4718 |
| 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
| County | Grade | Score | Claims | Disasters |
|---|---|---|---|---|
| Brown | A | 13 | 2 | 10 |
| Clark | A | 13 | 0 | 10 |
| Codington | A | 13 | 5 | 11 |
| Day | A | 13 | 1 | 10 |
| Hand | A | 13 | 1 | 10 |
| Roberts | A | 13 | 3 | 10 |
More Counties in South Dakota
Frequently Asked Questions
How many FEMA disaster declarations does Grant County, SD have?
Grant County, SD has 10 federal disaster declarations on FEMA record (1969–2023). The 5 most recent are: Flooding (declared Jul 6, 2023, DR-4718); 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 Grant County, SD?
Grant County is graded A (composite score 13/100, low risk). It ranks #759 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 Grant County?
1 NFIP flood insurance claims have been filed in Grant County, SD, totaling $15,878 in payouts. The average claim is $15,878. Source: FEMA FimaNfipClaims v2 dataset.
Has Grant County, SD had any recent flood disasters?
Yes. The most recent FEMA declaration affecting Grant County was Flooding on Jul 6, 2023 (DR-4718). The county has 10 declared disasters in the OpenFEMA record covering 1969–2023.
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.
Practical use of this page is in combination with the comparison and ranking pages elsewhere on the site, which surface the same data for this entity’s peers within U.S. ZIPs, counties, and states. A single-entity reading without peer context can be misleading when an entity is an outlier on one axis but typical on another.
Source: FEMA OpenFEMA datasets, 2026.