St. Mary, LA
St. Mary County in Louisiana has 41 FEMA disaster declarations on record covering 2008–2024, most recently Hurricane Francine on Sep 16, 2024 (DR-4817). Its flood risk grade is B (Moderate risk), ranking #45 of 3,277 U.S. counties, with 57 NFIP flood insurance claims totaling $1,215,563 in payouts. Flood risk is relatively low compared to the national average.
FEMA Disaster Declarations in St. Mary County
The 25 most recent federally declared disasters affecting St. Mary County, LA (2008–2024). Total declarations on record: 41.
| 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 |
| Sep 19, 2019 | Flood | Flooding | DR-4462 |
| Aug 27, 2019 | Hurricane | Hurricane Barry | DR-4458 |
| Jul 11, 2019 | Coastal Storm | Tropical Storm Barry | DR-3416 |
| May 29, 2019 | Flood | Flooding | DR-3413 |
| Oct 16, 2017 | Hurricane | Tropical Storm Harvey | DR-4345 |
| Oct 6, 2017 | Hurricane | Tropical Storm Nate | DR-3392 |
| Feb 5, 2016 | Flood | Flooding | DR-3376 |
| Aug 29, 2012 | Hurricane | Hurricane Isaac | DR-4080 |
| Aug 27, 2012 | Hurricane | Tropical Storm Isaac | DR-3347 |
| Aug 18, 2011 | Flood | Flooding | DR-4015 |
| May 6, 2011 | Flood | Flooding | DR-3322 |
| Sep 13, 2008 | Hurricane | Hurricane Ike | DR-1792 |
Score Breakdown
The composite score of 27 is calculated from four weighted factors. See our methodology for details.
Other Counties in Louisiana
| County | Grade | Score | Claims | Disasters |
|---|---|---|---|---|
| St. Martin | B | 27 | 88 | 45 |
| West Feliciana | B | 27 | 8 | 36 |
| Cameron | B | 26 | 120 | 33 |
| West Baton Rouge | B | 26 | 26 | 30 |
| La Salle | B | 29 | 10 | 28 |
| Ascension | B | 29 | 717 | 47 |
More Counties in Louisiana
Frequently Asked Questions
How many FEMA disaster declarations does St. Mary County, LA have?
St. Mary County, LA has 41 federal disaster declarations on FEMA record (2008–2024). 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. Mary County, LA?
St. Mary County is graded B (composite score 27/100, moderate risk). It ranks #45 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. Mary County?
57 NFIP flood insurance claims have been filed in St. Mary County, LA, totaling $1,215,563 in payouts. The average claim is $21,326. Source: FEMA FimaNfipClaims v2 dataset.
Has St. Mary County, LA had any recent flood disasters?
Yes. The most recent FEMA declaration affecting St. Mary County was Hurricane Francine on Sep 16, 2024 (DR-4817). The county has 41 declared disasters in the OpenFEMA record covering 2008–2024.
this entity is one of the data points covered by this site’s U.S. flood risk, NFIP claims, and disaster declarations dataset. The detail above comes directly from FEMA OpenFEMA datasets including the National Flood Hazard Layer and NFIP claims; the context that follows situates the headline numbers against the broader distribution across U.S. ZIPs, counties, and states.
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.