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Natural hazards · Sandown

Sandown, NH natural hazards

Most of the natural-hazard damage FEMA expects in Sandown comes from inland flooding, and overall the risk is low for a U.S. community. Flood insurance has paid 1 claim here since 2006. 10 federal disasters brought FEMA money into town.

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

How exposed is Sandown?

39
Low
vs. U.S. communities

FEMA expects yearly storm and flood damage to homes and buildings in Sandown to be higher than in 39% of U.S. communities, mostly from inland flooding.

Inland flooding65%Tornadoes9%Hurricanes6%Earthquakes5%Everything else16%
By hazard

What Sandown faces

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

Inland flooding

65% of expected damage
Above average · higher than 61% of U.S. places
Recorded about once a year in the area

Tornadoes

9% of expected damage
Well below average · higher than 24% of U.S. places

Hurricanes

6% of expected damage
Above average · higher than 72% of U.S. places
Recorded about once every 8 years in the area

Earthquakes

5% of expected damage
Above average · higher than 65% of U.S. places

Lower here

HailIce stormsWinter weatherCold wavesHeat wavesWildfireLandslidesStrong windLightningDrought

Not a risk here

Coastal floodingAvalanchesTsunamisVolcanic 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 Sandown flood?

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

1paid claims since 2006
$7Kpaid to owners
0homes flooded more than once
20062026
of homes in flood zones
are insured
of all homes
are insured
No community discount. Sandown isn’t in FEMA’s Community Rating System, which cuts flood insurance up to 45% in towns that do extra flood-proofing.
Insurance rates: Rockingham County.
Disasters that hit Sandown

10 federal disasters brought FEMA money here

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

Brought FEMA money into SandownDeclared for Rockingham County only
2015

Severe Winter Storm and Snowstorm

$43K to the Town of Sandown for repairs
2013

Severe Winter Storm and Snowstorm

$33K to the Town of Sandown for repairs
2012

Hurricane Sandy

$3K to the Town of Sandown for repairs
2010

Severe Winter Storm

$16K to the Town of Sandown for repairs
2008

Severe Winter Storm

$61K to the Town of Sandown for repairs
2007

Severe Storms and Flooding

7 households applied for aid $3K aid approved $15K to the Town of Sandown for repairs
2006

Severe Storms and Flooding

34 households applied for aid $49K aid approved $8K to the Town of Sandown for repairs
2005

Record And/Or Near Record Snow

$13K to the Town of Sandown for repairs
2003

Snow

$11K to the Town of Sandown for repairs
2001

Snow

$17K to the Town of Sandown for repairs
Rockingham County has had 30 natural disasters declared since 1953, most often severe storms and floods.
Around Sandown

Sandown and the towns around it

Chester: Moderate, mostly inland floodingDerry: Moderate, mostly inland floodingHampstead: Very low, mostly inland floodingDanville: Low, mostly inland floodingRaymond: High, mostly inland floodingAuburn: Low, mostly inland floodingCandia: Low, mostly inland floodingLondonderry: Low, mostly inland floodingAtkinson: Low, mostly inland floodingWindham: Low, mostly inland floodingSalem: Moderate, mostly inland floodingPlaistow: Low, mostly inland floodingKingston: Low, mostly inland floodingFremont: Moderate, mostly inland floodingSandown: Low, mostly inland flooding SandownChesterDerryHampsteadDanville
Very lowLowModerateHighVery high
Chestermostly inland floodingModerate
Derrymostly inland floodingModerate
Sandownmostly inland floodingLow
Danvillemostly inland floodingLow
Hampsteadmostly 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. Sandown covers 1 census tract, combined by population.
Money that reached townFlood claims are matched to Sandown’s own flood-insurance community; household aid to the registrant’s city; repair grants to the Town of Sandown. FEMA’s model follows property values, so a place that recently lost many homes can rate lower than it feels.

FEMA’s expected losses across Sandown total about $1.1M a year, counting buildings, people and crops.

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.

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Boundary source: https://tigerweb.geo.census.gov/arcgis/rest/services/TIGERweb/Places_CouSub_ConCity_SubMCD/MapServer/15 · 2025-01-01
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