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Natural hazards · Jenner

Jenner, CA natural hazards

Most of the natural-hazard damage FEMA expects in Jenner comes from landslides, and overall the risk is very high for a U.S. community. 2 federal disasters brought FEMA money into town.

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

How exposed is Jenner?

98
Very high
vs. U.S. communities

FEMA expects yearly storm and flood damage to homes and buildings in Jenner to be higher than in 98% of U.S. communities, mostly from landslides and inland flooding.

Landslides37%Inland flooding32%Earthquakes24%Everything else7%
By hazard

What Jenner faces

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

Landslides

37% of expected damage
Well above average · among the top 1% of U.S. places

Inland flooding

32% of expected damage
Well above average · higher than 96% of U.S. places
Recorded about 3 times a year in the area

Earthquakes

24% of expected damage
Well above average · higher than 94% of U.S. places

Lower here

Coastal floodingTornadoesHailWinter weatherHeat wavesWildfireStrong windLightningAvalanchesTsunamisVolcanic activity

Not a risk here

HurricanesIce stormsCold wavesDrought
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 Jenner flood?

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

of homes in flood zones
are insured
of all homes
are insured
No community discount. Jenner isn’t in FEMA’s Community Rating System, which cuts flood insurance up to 45% in towns that do extra flood-proofing.
Insurance rates: Sonoma County.
Disasters that hit Jenner

2 federal disasters brought FEMA money here

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

Brought FEMA money into JennerDeclared for Sonoma County only
2020

Wildfires

3 households applied for aid
2017

Wildfires

5 households applied for aid
Sonoma County has had 29 natural disasters declared since 1953, most often floods and severe storms.
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. Jenner 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 Jenner’s own flood-insurance community; household aid to the registrant’s city; repair grants to Jenner. 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/19 · 2025-01-01
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