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St. Lawrence, NY

Flood Risk Score: 10/100 · Rank #2023 of 3,277 counties

St. Lawrence County in New York has 5 FEMA disaster declarations on record covering 1996–2024, most recently Severe Storm, Tornadoes, and Flooding on Aug 29, 2024 (DR-4814). Its flood risk grade is A (Low risk), ranking #2023 of 3,277 U.S. counties, with 6 NFIP flood insurance claims totaling $1,114,385 in payouts. Flood risk is relatively low compared to the national average.

10
Risk Score
6
NFIP Claims
$1,114,385
Total Payouts
5
Disasters
$185,731
Avg Claim
6
Active Policies

FEMA Disaster Declarations in St. Lawrence County

The 5 most recent federally declared disasters affecting St. Lawrence County, NY (1996–2024). Total declarations on record: 5.

DeclaredIncident TypeTitleFEMA Disaster #
Aug 29, 2024FloodSevere Storm, Tornadoes, and FloodingDR-4814
Nov 14, 2017FloodFloodingDR-4348
Oct 28, 2012HurricaneHurricane SandyDR-3351
Sep 30, 2005HurricaneHurricane Katrina EvacuationDR-3262
Jan 24, 1996FloodSevere Storms and FloodingDR-1095

Score Breakdown

The composite score of 10 is calculated from four weighted factors. See our methodology for details.

Claims Density
40%
0
Disaster Frequency
25%
11
Claim Severity
20%
0
Year-over-Year Trend
15%
50

Other Counties in New York

CountyGradeScoreClaimsDisasters
SenecaA1034
JeffersonA10135
OrleansA1024
WayneA10135
HamiltonA1025
SaratogaA1015
View All Counties in New York

Frequently Asked Questions

How many FEMA disaster declarations does St. Lawrence County, NY have?

St. Lawrence County, NY has 5 federal disaster declarations on FEMA record (1996–2024). The 5 most recent are: Severe Storm, Tornadoes, and Flooding (declared Aug 29, 2024, DR-4814); Flooding (declared Nov 14, 2017, DR-4348); Hurricane Sandy (declared Oct 28, 2012, DR-3351); Hurricane Katrina Evacuation (declared Sep 30, 2005, DR-3262); Severe Storms and Flooding (declared Jan 24, 1996, DR-1095). Counts include flood, severe storm, hurricane, and coastal storm declarations from the OpenFEMA DisasterDeclarationsSummaries dataset.

What is the flood risk grade for St. Lawrence County, NY?

St. Lawrence County is graded A (composite score 10/100, low risk). It ranks #2023 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. Lawrence County?

6 NFIP flood insurance claims have been filed in St. Lawrence County, NY, totaling $1,114,385 in payouts. The average claim is $185,731. Source: FEMA FimaNfipClaims v2 dataset.

Has St. Lawrence County, NY had any recent flood disasters?

Yes. The most recent FEMA declaration affecting St. Lawrence County was Severe Storm, Tornadoes, and Flooding on Aug 29, 2024 (DR-4814). The county has 5 declared disasters in the OpenFEMA record covering 1996–2024.

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.

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.