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Natural hazards · Boscawen

Boscawen, NH natural hazards

Most of the natural-hazard damage FEMA expects in Boscawen comes from inland flooding, and overall the risk is moderate for a U.S. community. Flood insurance has paid 2 claims here since 2004. 2 federal disasters brought FEMA money into town.

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

How exposed is Boscawen?

56
Moderate
vs. U.S. communities

FEMA expects yearly storm and flood damage to homes and buildings in Boscawen to be higher than in 56% of U.S. communities, mostly from inland flooding.

Inland flooding72%Hurricanes8%Everything else21%
By hazard

What Boscawen faces

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

Inland flooding

72% of expected damage
Well above average · higher than 76% of U.S. places
Recorded about 3 times a year in the area

Hurricanes

8% of expected damage
Well above average · higher than 79% of U.S. places
Recorded about once every 16 years in the area

Lower here

TornadoesHailIce stormsWinter weatherCold wavesHeat wavesWildfireEarthquakesLandslidesStrong 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 Boscawen flood?

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

2paid claims since 2004
$4Kpaid to owners
0homes flooded more than once
20042026
of homes in flood zones
are insured
of all homes
are insured
No community discount. Boscawen isn’t in FEMA’s Community Rating System, which cuts flood insurance up to 45% in towns that do extra flood-proofing.
Insurance rates: Merrimack County.
Disasters that hit Boscawen

2 federal disasters brought FEMA money here

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

Brought FEMA money into BoscawenDeclared for Merrimack County only
2007

Severe Storms and Flooding

5 households applied for aid $3K aid approved
2006

Severe Storms and Flooding

19 households applied for aid $22K aid approved
Merrimack County has had 24 natural disasters declared since 1953, most often severe storms and floods.
Around Boscawen

Boscawen and the towns around it

Webster: High, mostly inland floodingCanterbury: Moderate, mostly inland floodingNorthfield: High, mostly inland floodingConcord: Moderate, mostly inland floodingSalisbury: High, mostly inland floodingFranklin: High, mostly inland floodingWarner: High, mostly inland floodingHopkinton: High, mostly inland floodingLoudon: High, mostly inland floodingTilton: Moderate, mostly inland floodingBelmont: High, mostly inland floodingPembroke: High, mostly inland floodingBow: Low, mostly inland floodingAndover: High, mostly inland floodingSanbornton: Moderate, mostly inland floodingBoscawen: Moderate, mostly inland flooding BoscawenWebsterCanterburyNorthfieldConcordSalisburyFranklin
Very lowLowModerateHighVery high
Northfieldmostly inland floodingHigh
Webstermostly inland floodingHigh
Salisburymostly inland floodingHigh
Franklinmostly inland floodingHigh
Boscawenmostly inland floodingModerate
Canterburymostly inland floodingModerate
Concordmostly inland floodingModerate
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. Boscawen covers 1 census tract, combined by population.
Money that reached townFlood claims are matched to Boscawen’s own flood-insurance community; household aid to the registrant’s city; repair grants to the Town of Boscawen. 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 Boscawen total about $1.2M 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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