FloodZoneMap.org

Granite County, Montana Flood Zones

Check an Address in Granite County

Enter any address in Granite County, Montana to see its FEMA flood zone

Granite County Disaster History

Disaster Declarations
8
Flood/Coastal Disasters
2
Hurricane Disasters
1
Latest Disaster
COVID-19 PANDEMIC (2020-01-20)

Source: OpenFEMA Disaster Declarations Summaries.

Recent Disaster Declarations in Granite County

DeclarationTypeDate
COVID-19 PANDEMICBiological2020-01-20
COVID-19 Biological2020-01-20
SEVERE STORMS AND FLOODINGSevere Storm2011-04-04
HURRICANE KATRINA EVACUATIONHurricane2005-08-29
MT-SOUTHWESTERN ZONE TWO FIRE COMPLEXFire2000-08-05
WILDFIRESFire2000-07-13
HEAVY RAINS, LANDSLIDES & FLOODINGFlood1986-02-24
SEVERE STORMS & FLOODINGFlood1981-05-27

Flood Zone Types in Granite County

FEMA assigns flood zone designations to areas in Granite County, Montana:

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 Granite County

Properties in Granite County, Montana 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.