FloodZoneMap.org

St. Lawrence County, New York Flood Zones

Check an Address in St. Lawrence County

Enter any address in St. Lawrence County, New York to see its FEMA flood zone

St. Lawrence County Disaster History

Disaster Declarations
19
Flood/Coastal Disasters
3
Hurricane Disasters
2
Latest Disaster
REMNANTS OF TROPICAL STORM DEBBY (2024-08-08)

Source: OpenFEMA Disaster Declarations Summaries.

Recent Disaster Declarations in St. Lawrence County

DeclarationTypeDate
REMNANTS OF TROPICAL STORM DEBBYTropical Storm2024-08-08
SEVERE STORM, TORNADOES, AND FLOODINGFlood2024-07-10
SEVERE WINTER STORM AND SNOWSTORMSnowstorm2022-12-23
SEVERE WINTER STORM AND SNOWSTORMWinter Storm2022-11-18
COVID-19 Biological2020-01-20
COVID-19 PANDEMICBiological2020-01-20
FLOODINGFlood2017-05-02
SEVERE WINTER STORM, SNOWSTORM, AND FLOODINGSnowstorm2014-11-17
HURRICANE SANDYHurricane2012-10-27
HURRICANE KATRINA EVACUATIONHurricane2005-08-29

Flood Zone Types in St. Lawrence County

FEMA assigns flood zone designations to areas in St. Lawrence County, New York:

AE High Risk — 1% annual chance of flooding. Insurance required.

VE Very High Risk — Coastal flooding with wave action.

X (Shaded) Moderate Risk — 500-year floodplain.

X Low Risk — Outside major floodplains.

View all flood zone types →

Flood Insurance in St. Lawrence County

Properties in St. Lawrence County, New York that are in FEMA-designated Special Flood Hazard Areas (zones A and V) with federally backed mortgages are required to carry flood insurance.

Even outside high-risk zones, flood insurance is recommended. Over 20% of NFIP claims come from low and moderate-risk areas.

Visit FloodSmart.gov to find an agent and get a quote.