Natural hazards · Andover

Andover, NH natural hazards

Most of the natural-hazard damage FEMA expects in Andover comes from inland flooding, and overall the risk is high for a U.S. community. Flood insurance has paid 3 claims 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 Andover?

67
High
vs. U.S. communities

FEMA expects yearly storm and flood damage to homes and buildings in Andover to be higher than in 67% of U.S. communities, mostly from inland flooding.

Inland flooding79%Hurricanes6%Everything else16%
By hazard

What Andover faces

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

Inland flooding

79% of expected damage
Well above average · higher than 85% of U.S. places
Recorded about 3 times a year in the area

Hurricanes

6% 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 windLightning

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 Andover flood?

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

3paid claims since 2006
$58Kpaid to owners
0homes flooded more than once
20062026
of homes in flood zones
are insured
of all homes
are insured
No community discount. Andover 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 Andover

10 federal disasters brought FEMA money here

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

Brought FEMA money into AndoverDeclared for Merrimack County only
2017

Severe Storm and Flooding

$129K to the Town of Andover for repairs
2013

Severe Winter Storm and Snowstorm

$13K to the Town of Andover for repairs
2011

Tropical Storm Irene

$13K to the Town of Andover for repairs
2008

Severe Winter Storm

$15K to the Town of Andover for repairs
2007

Severe Storms and Flooding

5 households applied for aid $1K aid approved $197K to the Town of Andover for repairs
2006

Severe Storms and Flooding

12 households applied for aid $18K aid approved $162K to the Town of Andover for repairs
2005

Severe Storms and Flooding

1 household applied for aid $9K to the Town of Andover for repairs
2005

Record And/Or Near Record Snow

$7K to the Town of Andover for repairs
2003

Snow

$13K to the Town of Andover for repairs
2001

Snow

$7K to the Town of Andover for repairs
Merrimack County has had 24 natural disasters declared since 1953, most often severe storms and floods.
Around Andover

Andover and the towns around it

Salisbury: High, mostly inland floodingFranklin: High, mostly inland floodingWilmot: Very high, mostly inland floodingWarner: High, mostly inland floodingBoscawen: Moderate, mostly inland floodingWebster: High, mostly inland floodingNorthfield: High, mostly inland floodingSanbornton: Moderate, mostly inland floodingTilton: Moderate, mostly inland floodingNew London: Very low, mostly inland floodingDanbury: Very high, mostly inland floodingSpringfield: High, mostly inland floodingSutton: Moderate, mostly inland floodingAndover: High, mostly inland flooding AndoverSalisburyFranklinWilmot
Very lowLowModerateHighVery high
Wilmotmostly inland floodingVery high
Andovermostly inland floodingHigh
Salisburymostly inland floodingHigh
Franklinmostly inland floodingHigh
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. Andover 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 Andover’s own flood-insurance community; household aid to the registrant’s city; repair grants to the Town of Andover. 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.

We left the porch light on

Where to, neighbor?

You’re in Andover, NHMerrimack CountyView boundary

Nearby

All towns & citiesExplore the map
Loading boundary…

Andover is your selected town. The feed includes posts assigned to this town, not a distance radius or ZIP code.

Neighborhoods narrow the feed further, while townwide announcements, events, and issues remain visible.

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