Natural hazards · Grand Isle

Grand Isle, VT natural hazards

Most of the natural-hazard damage FEMA expects in Grand Isle comes from inland flooding, and overall the risk is moderate for a U.S. community. Flood insurance has paid 3 claims here since 1986. 2 federal disasters brought FEMA money into town.

FEMA National Risk Index, December 2025 · OpenFEMA claims, aid & declarations

Expected damage

How exposed is Grand Isle?

Moderate

vs. U.S. communities

FEMA expects yearly storm and flood damage to homes and buildings in Grand Isle to be higher than in 42% of U.S. communities, mostly from inland flooding.

Inland flooding78%Strong wind5%Everything else17%

By hazard

What Grand Isle faces

Each hazard’s share of the damage FEMA expects here, and how that compares with the rest of the country.

Inland flooding

78% of expected damage

Above average · higher than 67% of U.S. places

Recorded about once every 2 years in the area

Strong wind

5% of expected damage

Above average · higher than 74% of U.S. places

Recorded about once a year in the area

Lower here

HurricanesTornadoesHailIce stormsWinter weatherCold wavesHeat wavesWildfireEarthquakesLandslidesLightning

Not a risk here

Coastal floodingDroughtAvalanchesTsunamisVolcanic activity

Flood risk changes street by street. Check a specific address on FEMA’s flood map, and ask about flood insurance before you buy.

Flood insurance claims

Does Grand Isle flood?

Every paid claim on a federal flood insurance policy in Grand Isle, from FEMA’s records.

3paid claims since 1986

$6Kpaid to owners

0homes flooded more than once

19862026

of all homes
are insured

No community discount. Grand Isle isn’t in FEMA’s Community Rating System, which cuts flood insurance up to 45% in towns that do extra flood-proofing.

Insurance rates: Grand Isle County.

Disasters that hit Grand Isle

2 federal disasters brought FEMA money here

Disasters the President declared that paid out in Grand Isle itself: aid to households, or repair grants to the Town of Grand Isle.

Brought FEMA money into Grand IsleDeclared for Grand Isle County only

2011

Severe Storms and Flooding

28 households applied for aid $4K aid approved $105K to the Town of Grand Isle for repairs

2001

Snow

$4K to the Town of Grand Isle for repairs

Grand Isle County has had 16 natural disasters declared since 1953, most often severe storms and hurricanes.

Around Grand Isle

Grand Isle and the towns around it

Very lowLowModerateHighVery high

North Heromostly inland floodingHigh

Plattsburghmostly inland floodingModerate

Grand Islemostly inland floodingModerate

South Heromostly inland floodingModerate

Miltonmostly inland floodingLow

Georgiamostly inland floodingLow

St. Albansmostly inland floodingVery low

About these numbers

How to read this page

An average, not a forecastFEMA’s National Risk Index estimates the damage 18 kinds of natural hazards cause in a typical year, from decades of records and models. A quiet decade can follow a bad year.

Compared by rate“Higher than N%” compares yearly damage as a share of what’s here, so a big city isn’t rated riskier just for having more buildings. Grand Isle is smaller than a census tract, so it shares the figures of the tract around its center.

Money that reached townFlood claims are matched to Grand Isle’s own flood-insurance community; household aid to the registrant’s city; repair grants to the Town of Grand Isle. FEMA’s model follows property values, so a place that recently lost many homes can rate lower than it feels.

Sources: FEMA National Risk Index (December 2025); OpenFEMA: NFIP redacted claims, multiple-loss properties, community status book and residential penetration rates, housing assistance (owners and renters), public assistance funded projects, hazard mitigation properties and disaster declarations. Census tracts: U.S. Census Bureau.