Natural hazards · Alsea

Alsea, OR natural hazards

Most of the natural-hazard damage FEMA expects in Alsea comes from inland flooding, and overall the risk is very high for a U.S. community.

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

Expected damage

How exposed is Alsea?

Very high

vs. U.S. communities

FEMA expects yearly storm and flood damage to homes and buildings in Alsea to be higher than in 88% of U.S. communities, mostly from inland flooding and earthquakes.

Inland flooding61%Earthquakes29%Landslides7%Everything else3%

By hazard

What Alsea faces

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

Inland flooding

61% of expected damage

Well above average · higher than 95% of U.S. places

Recorded about once a year in the area

Earthquakes

29% of expected damage

Well above average · higher than 88% of U.S. places

Landslides

7% of expected damage

Well above average · higher than 98% of U.S. places

Lower here

TornadoesHailIce stormsWinter weatherCold wavesHeat wavesWildfireStrong windLightningDroughtAvalanchesVolcanic activity

Not a risk here

Coastal floodingHurricanesTsunamis

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 Alsea flood?

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

of homes in flood zones
are insured

of all homes
are insured

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

Insurance rates: Benton County.

Disasters that hit Alsea

Federal disasters declared here

None of the disasters declared for Benton County shows FEMA aid or repair money reaching Alsea itself in FEMA’s records.

Brought FEMA money into AlseaDeclared for Benton County only

Benton County has had 13 natural disasters declared since 1953, most often severe storms and floods.

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