Natural hazards · Oak Grove

Oak Grove, OR natural hazards

Most of the natural-hazard damage FEMA expects in Oak Grove comes from earthquakes, and overall the risk is high for a U.S. community. Flood insurance has paid 49 claims here since 1980. 1 federal disaster brought FEMA money into town.

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

How exposed is Oak Grove?

66
High
vs. U.S. communities

FEMA expects yearly storm and flood damage to homes and buildings in Oak Grove to be higher than in 66% of U.S. communities, mostly from earthquakes and inland flooding.

Earthquakes58%Inland flooding26%Cold waves8%Everything else8%
By hazard

What Oak Grove faces

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

Earthquakes

58% of expected damage
Well above average · higher than 90% of U.S. places

Inland flooding

26% of expected damage
Below average · higher than 38% of U.S. places
Recorded about once a year in the area

Cold waves

8% of expected damage
Below average · higher than 26% of U.S. places
Recorded about once every 4 years in the area

Lower here

TornadoesHailIce stormsWinter weatherHeat wavesWildfireLandslidesStrong windLightningVolcanic activity

Not a risk here

Coastal floodingHurricanesDroughtAvalanchesTsunamis
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 Oak Grove flood?

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

49paid claims since 1980
$1.6Mpaid to owners
0homes flooded more than once
19802026

Biggest named events

  • Winter storm: 1 claim, $6K
of homes in flood zones
are insured
of all homes
are insured
No community discount. Oak Grove isn’t in FEMA’s Community Rating System, which cuts flood insurance up to 45% in towns that do extra flood-proofing.
Insurance rates: Clackamas County.
Disasters that hit Oak Grove

1 federal disaster brought FEMA money here

Disasters the President declared that paid out in Oak Grove itself: aid to households, or repair grants to Oak Grove.

Brought FEMA money into Oak GroveDeclared for Clackamas County only
2020

Wildfires and Straight-Line Winds

1 household applied for aid $500 aid approved
Clackamas County has had 18 natural disasters declared since 1953, most often severe storms and floods.
Around Oak Grove

Oak Grove and the towns around it

Milwaukie: High, mostly earthquakesLake Oswego: High, mostly earthquakesOatfield: Low, mostly inland floodingWest Linn: Moderate, mostly earthquakesJennings Lodge: High, mostly earthquakesDunthorpe: High, mostly earthquakesPortland: High, mostly earthquakesStafford: Moderate, mostly inland floodingTualatin: Moderate, mostly earthquakesRivergrove: High, mostly inland floodingGladstone: High, mostly inland floodingOregon City: Moderate, mostly earthquakesOak Grove: High, mostly earthquakes Oak GroveMilwaukieLake OswegoOatfieldWest LinnJennings LodgeDunthorpe
Very lowLowModerateHighVery high
Milwaukiemostly earthquakesHigh
Dunthorpemostly earthquakesHigh
Jennings Lodgemostly earthquakesHigh
Oak Grovemostly earthquakesHigh
Lake Oswegomostly earthquakesHigh
West Linnmostly earthquakesModerate
Oatfieldmostly inland floodingLow
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. Oak Grove covers 3 census tracts, combined by population.
Money that reached townFlood claims are matched to Oak Grove’s own flood-insurance community (here, the census tracts inside it); household aid to the registrant’s city; repair grants to Oak Grove. 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 Oak Grove total about $7.0M 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.

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Oak Grove

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Boundary source: https://tigerweb.geo.census.gov/arcgis/rest/services/TIGERweb/Places_CouSub_ConCity_SubMCD/MapServer/19 · 2025-01-01