Brown, SD
Brown 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 #755 of 3,277 U.S. counties, with 2 NFIP flood insurance claims totaling $2,614 in payouts. Flood risk is relatively low compared to the national average.
FEMA Disaster Declarations in Brown County
The 10 most recent federally declared disasters affecting Brown 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 |
| Jun 1, 1998 | Flood | Flooding, Severe Storms, Tornadoes | DR-1218 |
| Apr 7, 1997 | Flood | Severe Flooding, Sever Winter Storms,heavy Rains High Winds | DR-1173 |
| May 26, 1995 | Flood | Flooding | DR-1052 |
| 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 |
|---|---|---|---|---|
| Clark | A | 13 | 0 | 10 |
| Codington | A | 13 | 5 | 11 |
| Day | A | 13 | 1 | 10 |
| Grant | 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 Brown County, SD have?
Brown 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 Brown County, SD?
Brown County is graded A (composite score 13/100, low risk). It ranks #755 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 Brown County?
2 NFIP flood insurance claims have been filed in Brown County, SD, totaling $2,614 in payouts. The average claim is $1,307. Source: FEMA FimaNfipClaims v2 dataset.
Has Brown County, SD had any recent flood disasters?
Yes. The most recent FEMA declaration affecting Brown County was Flooding on Jul 6, 2023 (DR-4718). The county has 10 declared disasters in the OpenFEMA record covering 1969–2023.
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.
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.
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.