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Natural hazards · Altona

Altona, NY natural hazards

Most of the natural-hazard damage FEMA expects in Altona comes from inland flooding, and overall the risk is high for a U.S. community. Flood insurance has paid 4 claims here since 1996. 5 federal disasters brought FEMA money into town.

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

How exposed is Altona?

64
High
vs. U.S. communities

FEMA expects yearly storm and flood damage to homes and buildings in Altona to be higher than in 64% of U.S. communities, mostly from inland flooding.

Inland flooding79%Earthquakes6%Everything else15%
By hazard

What Altona 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 84% of U.S. places
Recorded about 2 times a year in the area

Earthquakes

6% of expected damage
Above average · higher than 74% of U.S. places

Lower here

HurricanesTornadoesHailIce stormsWinter weatherCold wavesHeat wavesWildfireLandslidesStrong 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 Altona flood?

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

4paid claims since 1996
$61Kpaid to owners
0homes flooded more than once
19962026
of homes in flood zones
are insured
of all homes
are insured
No community discount. Altona isn’t in FEMA’s Community Rating System, which cuts flood insurance up to 45% in towns that do extra flood-proofing.
Insurance rates: Clinton County.
Disasters that hit Altona

5 federal disasters brought FEMA money here

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

Brought FEMA money into AltonaDeclared for Clinton County only
2023

Severe Storms and Flooding

$298K to the Town of Altona for repairs
2017

Severe Winter Storm and Snowstorm

$6K to the Town of Altona for repairs
2013

Severe Storms and Flooding

$5K to the Town of Altona for repairs
2011

Hurricane Irene

18 households applied for aid $51K aid approved $74K to the Town of Altona for repairs
2011

Severe Storms, Flooding, Tornadoes, and Straight-Line Winds

$8K to the Town of Altona for repairs
Clinton County has had 14 natural disasters declared since 1953, most often severe storms and floods.
Around Altona

Altona and the towns around it

Mooers: High, mostly inland floodingChazy: High, mostly inland floodingEllenburg: Moderate, mostly inland floodingBeekmantown: High, mostly inland floodingDannemora: Moderate, mostly inland floodingChamplain: High, mostly inland floodingClinton: Moderate, mostly inland floodingIsle La Motte: High, mostly inland floodingBellmont: High, mostly inland floodingNorth Hero: High, mostly inland floodingPlattsburgh: Moderate, mostly inland floodingSaranac: High, mostly inland floodingAltona: High, mostly inland flooding AltonaMooersChazyEllenburgBeekmantownDannemora
Very lowLowModerateHighVery high
Beekmantownmostly inland floodingHigh
Chazymostly inland floodingHigh
Altonamostly inland floodingHigh
Mooersmostly inland floodingHigh
Ellenburgmostly inland floodingModerate
Dannemoramostly 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. Altona 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 Altona’s own flood-insurance community; household aid to the registrant’s city; repair grants to the Town of Altona. 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.

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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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