Lake, SD
Lake County in South Dakota has 9 FEMA disaster declarations on record covering 1969–2024, most recently Severe Storms, Straight-Line Winds, and Flooding on Aug 15, 2024 (DR-4807). Its flood risk grade is A (Low risk), ranking #1233 of 3,277 U.S. counties, with 22 NFIP flood insurance claims totaling $989,436 in payouts. Flood risk is relatively low compared to the national average.
FEMA Disaster Declarations in Lake County
The 9 most recent federally declared disasters affecting Lake County, SD (1969–2024). Total declarations on record: 9.
| Declared | Incident Type | Title | FEMA Disaster # |
|---|---|---|---|
| Aug 15, 2024 | Flood | Severe Storms, Straight-Line Winds, and Flooding | DR-4807 |
| 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 |
| Apr 7, 1997 | Flood | Severe Flooding, Sever Winter Storms,heavy Rains High Winds | DR-1173 |
| May 26, 1995 | Flood | Flooding | DR-1052 |
| Jul 19, 1984 | Flood | Severe Storms & Flooding | DR-717 |
| Apr 18, 1969 | Flood | Flooding | DR-257 |
Score Breakdown
The composite score of 12 is calculated from four weighted factors. See our methodology for details.
Other Counties in South Dakota
| County | Grade | Score | Claims | Disasters |
|---|---|---|---|---|
| Lake Traverse Indian Reservation | A | 12 | 0 | 8 |
| Faulk | A | 12 | 0 | 9 |
| Marshall | A | 12 | 0 | 9 |
| Butte | A | 12 | 0 | 8 |
| Jerauld | A | 12 | 0 | 9 |
| Lincoln | A | 12 | 5 | 8 |
More Counties in South Dakota
Frequently Asked Questions
How many FEMA disaster declarations does Lake County, SD have?
Lake County, SD has 9 federal disaster declarations on FEMA record (1969–2024). The 5 most recent are: Severe Storms, Straight-Line Winds, and Flooding (declared Aug 15, 2024, DR-4807); 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 Lake County, SD?
Lake County is graded A (composite score 12/100, low risk). It ranks #1233 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 Lake County?
22 NFIP flood insurance claims have been filed in Lake County, SD, totaling $989,436 in payouts. The average claim is $44,974. Source: FEMA FimaNfipClaims v2 dataset.
Has Lake County, SD had any recent flood disasters?
Yes. The most recent FEMA declaration affecting Lake County was Severe Storms, Straight-Line Winds, and Flooding on Aug 15, 2024 (DR-4807). The county has 9 declared disasters in the OpenFEMA record covering 1969–2024.
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.
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.