Natural hazards · Hannibal

Hannibal, NY natural hazards

Most of the natural-hazard damage FEMA expects in Hannibal comes from inland flooding, and overall the risk is moderate for a U.S. community. 1 federal disaster brought FEMA money into town.

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

Expected damage

How exposed is Hannibal?

Moderate

vs. U.S. communities

FEMA expects yearly storm and flood damage to homes and buildings in Hannibal to be higher than in 40% of U.S. communities, mostly from inland flooding.

Inland flooding82%Everything else18%

By hazard

What Hannibal faces

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

Inland flooding

82% of expected damage

Above average · higher than 69% 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 Hannibal flood?

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

of homes in flood zones
are insured

of all homes
are insured

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

Insurance rates: Oswego County.

Disasters that hit Hannibal

1 federal disaster brought FEMA money here

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

Brought FEMA money into HannibalDeclared for Oswego County only

2003

Ice Storm

137 households applied for aid $69K aid approved

Oswego County has had 17 natural disasters declared since 1953, most often floods and winter storms.

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. Hannibal 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 Hannibal’s own flood-insurance community; household aid to the registrant’s city; repair grants to the Village of Hannibal. 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.