Natural hazards · Corvallis

Corvallis, OR natural hazards

Most of the natural-hazard damage FEMA expects in Corvallis comes from earthquakes, and overall the risk is high for a U.S. community. Flood insurance has paid 17 claims here since 1996. 6 federal disasters brought FEMA money into town.

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

Expected damage

How exposed is Corvallis?

High

vs. U.S. communities

FEMA expects yearly storm and flood damage to homes and buildings in Corvallis to be higher than in 75% of U.S. communities, mostly from earthquakes and inland flooding.

Earthquakes77%Inland flooding20%Everything else3%

By hazard

What Corvallis faces

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

Earthquakes

77% of expected damage

Well above average · higher than 92% of U.S. places

Inland flooding

20% of expected damage

Above average · higher than 52% of U.S. places

Recorded about once a year in the area

Lower here

TornadoesHailIce stormsWinter weatherCold wavesHeat wavesWildfireLandslidesStrong windLightningDrought

Not a risk here

Coastal floodingHurricanesAvalanchesTsunamisVolcanic 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 Corvallis flood?

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

17paid claims since 1996

$204Kpaid to owners

4homes flooded more than once

19962026

Homes that flooded again and again

■ FEMA “severe repetitive loss” (2) ■ flooded 2+ times

of homes in flood zones
are insured

of all homes
are insured

🏷️ 25% off flood insurance. Corvallis is in FEMA’s Community Rating System (class 5) for its flood-proofing work.

Insurance rates: Benton County.

What’s been done with FEMA grants

1homes raised above flood level

1flood-prone properties bought out and cleared

1flood-prone homes bought out and moved

Disasters that hit Corvallis

6 federal disasters brought FEMA money here

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

Brought FEMA money into CorvallisDeclared for Benton County only

2024

Severe Winter Storms, Straight-Line Winds, Landslides, and Mudslides

$36K to the City of Corvallis for repairs

2020

Wildfires and Straight-Line Winds

1 household applied for aid

2014

Severe Winter Storm

$7K to the City of Corvallis for repairs

2012

Severe Winter Storm, Flooding, Landslides, and Mudslides

$412K to the City of Corvallis for repairs

2006

Severe Winter Storm and Flooding

$13K to the City of Corvallis for repairs

2003

Severe Winter Storms

$53K to the City of Corvallis for repairs

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. Corvallis covers 11 census tracts, combined by population.

Money that reached townFlood claims are matched to Corvallis’s own flood-insurance community; household aid to the registrant’s city; repair grants to the City of Corvallis. FEMA’s model follows property values, so a place that recently lost many homes can rate lower than it feels.

FEMA’s expected losses across Corvallis total about $37.2M a year, counting buildings, people and crops.

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.