St. Tammany, LA
St. Tammany County in Louisiana has 40 FEMA disaster declarations on record covering 2005–2024, most recently Hurricane Francine on Sep 16, 2024 (DR-4817). Its flood risk grade is B (Moderate risk), ranking #59 of 3,277 U.S. counties, with 714 NFIP flood insurance claims totaling $24,905,184 in payouts. Flood risk is relatively low compared to the national average.
FEMA Disaster Declarations in St. Tammany County
The 25 most recent federally declared disasters affecting St. Tammany County, LA (2005–2024). Total declarations on record: 40.
| Declared | Incident Type | Title | FEMA Disaster # |
|---|---|---|---|
| Sep 16, 2024 | Hurricane | Hurricane Francine | DR-4817 |
| Sep 10, 2024 | Hurricane | Tropical Storm Francine | DR-3614 |
| Sep 13, 2021 | Coastal Storm | Tropical Storm Nicholas | DR-3574 |
| Aug 29, 2021 | Hurricane | Hurricane Ida | DR-4611 |
| Aug 27, 2021 | Hurricane | Tropical Storm Ida | DR-3568 |
| Jan 12, 2021 | Hurricane | Hurricane Zeta | DR-4577 |
| Oct 27, 2020 | Hurricane | Tropical Storm Zeta | DR-3549 |
| Oct 16, 2020 | Hurricane | Hurricane Delta | DR-4570 |
| Oct 7, 2020 | Hurricane | Hurricane Delta | DR-3547 |
| Sep 14, 2020 | Hurricane | Hurricane Sally | DR-3543 |
| Aug 28, 2020 | Hurricane | Hurricane Laura | DR-4559 |
| Aug 23, 2020 | Hurricane | Tropical Storms Laura and Marco | DR-3538 |
| Jun 7, 2020 | Coastal Storm | Tropical Storm Cristobal | DR-3527 |
| Jul 11, 2019 | Coastal Storm | Tropical Storm Barry | DR-3416 |
| Oct 6, 2017 | Hurricane | Tropical Storm Nate | DR-3392 |
| Aug 14, 2016 | Flood | Severe Storms and Flooding | DR-4277 |
| Mar 13, 2016 | Flood | Severe Storms and Flooding | DR-4263 |
| Aug 29, 2012 | Hurricane | Hurricane Isaac | DR-4080 |
| Aug 27, 2012 | Hurricane | Tropical Storm Isaac | DR-3347 |
| Sep 13, 2008 | Hurricane | Hurricane Ike | DR-1792 |
| Sep 2, 2008 | Hurricane | Hurricane Gustav | DR-1786 |
| Aug 29, 2008 | Hurricane | Hurricane Gustav | DR-3289 |
| Sep 24, 2005 | Hurricane | Hurricane Rita | DR-1607 |
| Sep 21, 2005 | Hurricane | Hurricane Rita | DR-3260 |
| Aug 29, 2005 | Hurricane | Hurricane Katrina | DR-1603 |
Score Breakdown
The composite score of 25 is calculated from four weighted factors. See our methodology for details.
Other Counties in Louisiana
| County | Grade | Score | Claims | Disasters |
|---|---|---|---|---|
| Rapides | B | 25 | 137 | 36 |
| East Feliciana | B | 25 | 13 | 33 |
| Iberville | B | 25 | 33 | 39 |
| Tangipahoa | B | 25 | 458 | 39 |
| Cameron | B | 26 | 120 | 33 |
| West Baton Rouge | B | 26 | 26 | 30 |
More Counties in Louisiana
Frequently Asked Questions
How many FEMA disaster declarations does St. Tammany County, LA have?
St. Tammany County, LA has 40 federal disaster declarations on FEMA record (2005–2024). The 5 most recent are: Hurricane Francine (declared Sep 16, 2024, DR-4817); Tropical Storm Francine (declared Sep 10, 2024, DR-3614); Tropical Storm Nicholas (declared Sep 13, 2021, DR-3574); Hurricane Ida (declared Aug 29, 2021, DR-4611); Tropical Storm Ida (declared Aug 27, 2021, DR-3568). Counts include flood, severe storm, hurricane, and coastal storm declarations from the OpenFEMA DisasterDeclarationsSummaries dataset.
What is the flood risk grade for St. Tammany County, LA?
St. Tammany County is graded B (composite score 25/100, moderate risk). It ranks #59 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 St. Tammany County?
714 NFIP flood insurance claims have been filed in St. Tammany County, LA, totaling $24,905,184 in payouts. The average claim is $34,881. Source: FEMA FimaNfipClaims v2 dataset.
Has St. Tammany County, LA had any recent flood disasters?
Yes. The most recent FEMA declaration affecting St. Tammany County was Hurricane Francine on Sep 16, 2024 (DR-4817). The county has 40 declared disasters in the OpenFEMA record covering 2005–2024.
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.
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.