Natural hazards · Langdon

Langdon, NH natural hazards

Most of the natural-hazard damage FEMA expects in Langdon comes from inland flooding, and overall the risk is high for a U.S. community. 2 federal disasters brought FEMA money into town.

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

Expected damage

How exposed is Langdon?

High

vs. U.S. communities

FEMA expects yearly storm and flood damage to homes and buildings in Langdon to be higher than in 61% of U.S. communities, mostly from inland flooding.

Inland flooding77%Everything else23%

By hazard

What Langdon faces

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

Inland flooding

77% of expected damage

Well above average · higher than 81% of U.S. places

Recorded about once a year in the area

Lower here

HurricanesTornadoesHailIce 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 Langdon flood?

FEMA's records show no paid flood insurance claims in Langdon.

of homes in flood zones
are insured

of all homes
are insured

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

Insurance rates: Sullivan County.

Disasters that hit Langdon

2 federal disasters brought FEMA money here

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

Brought FEMA money into LangdonDeclared for Sullivan County only

2021

Severe Storm and Flooding

$87K to the Town of Langdon for repairs

2005

Severe Storms and Flooding

2 households applied for aid $4K aid approved $27K to the Town of Langdon for repairs

Sullivan County has had 27 natural disasters declared since 1953, most often severe storms and floods.

Around Langdon

Langdon and the towns around it

Very lowLowModerateHighVery high

Alsteadmostly inland floodingHigh

Langdonmostly inland floodingHigh

Walpolemostly inland floodingModerate

Charlestownmostly 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. Langdon 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 Langdon’s own flood-insurance community; household aid to the registrant’s city; repair grants to the Town of Langdon. 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.