Natural hazards · Rivergrove

Rivergrove, OR natural hazards

Most of the natural-hazard damage FEMA expects in Rivergrove comes from inland flooding, and overall the risk is high for a U.S. community. Flood insurance has paid 24 claims here since 1996.

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

Expected damage

How exposed is Rivergrove?

High

vs. U.S. communities

FEMA expects yearly storm and flood damage to homes and buildings in Rivergrove to be higher than in 78% of U.S. communities, mostly from inland flooding and earthquakes.

Inland flooding48%Earthquakes42%Cold waves5%Everything else5%

By hazard

What Rivergrove faces

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

Inland flooding

48% of expected damage

Well above average · higher than 81% of U.S. places

Recorded about once a year in the area

Earthquakes

42% of expected damage

Well above average · higher than 89% of U.S. places

Cold waves

5% 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 Rivergrove flood?

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

24paid claims since 1996

$647Kpaid 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

No community discount. Rivergrove 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 Rivergrove

Federal disasters declared here

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

Brought FEMA money into RivergroveDeclared for Clackamas County only

Clackamas County has had 18 natural disasters declared since 1953, most often severe storms and floods.

Around Rivergrove

Rivergrove and the towns around it

Very lowLowModerateHighVery high

Rivergrovemostly inland floodingHigh

Lake Oswegomostly earthquakesHigh

Tualatinmostly earthquakesModerate

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