Natural hazards · Larkfield-Wikiup

Larkfield-Wikiup, CA natural hazards

Most of the natural-hazard damage FEMA expects in Larkfield-Wikiup comes from earthquakes, and overall the risk is very high for a U.S. community. Flood insurance has paid 3 claims here since 1995. 1 federal disaster brought FEMA money into town.

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

How exposed is Larkfield-Wikiup?

93
Very high
vs. U.S. communities

FEMA expects yearly storm and flood damage to homes and buildings in Larkfield-Wikiup to be higher than in 93% of U.S. communities, mostly from earthquakes and inland flooding.

Earthquakes51%Inland flooding40%Wildfire7%Everything else3%
By hazard

What Larkfield-Wikiup faces

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

Earthquakes

51% of expected damage
Well above average · higher than 97% of U.S. places

Inland flooding

40% of expected damage
Well above average · higher than 90% of U.S. places
Recorded about 3 times a year in the area

Wildfire

7% of expected damage
Well above average · higher than 97% of U.S. places

Lower here

TornadoesHailWinter weatherHeat wavesLandslidesStrong windLightningDroughtVolcanic activity

Not a risk here

Coastal floodingHurricanesIce stormsCold wavesAvalanchesTsunamis
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 Larkfield-Wikiup flood?

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

3paid claims since 1995
$12Kpaid to owners
0homes flooded more than once
19952026

Biggest named events

  • Pineapple Express - Southern: 1 claim, $2K
of homes in flood zones
are insured
of all homes
are insured
No community discount. Larkfield-Wikiup 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 Larkfield-Wikiup

1 federal disaster brought FEMA money here

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

Brought FEMA money into Larkfield-WikiupDeclared for Sonoma County only
2017

Wildfires

1 household applied for aid $6K aid approved
Sonoma County has had 29 natural disasters declared since 1953, most often floods and severe storms.
Around Larkfield-Wikiup

Larkfield-Wikiup and the towns around it

Windsor: Very high, mostly earthquakesSanta Rosa: Very high, mostly earthquakesSebastopol: Very high, mostly earthquakesFulton: Very high, mostly earthquakesLarkfield-Wikiup: Very high, mostly earthquakes Larkfield-WikiupWindsorSanta Rosa
Very lowLowModerateHighVery high
Santa Rosamostly earthquakesVery high
Windsormostly earthquakesVery high
Larkfield-Wikiupmostly earthquakesVery high
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. Larkfield-Wikiup covers 1 census tract, combined by population.
Money that reached townFlood claims are matched to Larkfield-Wikiup’s own flood-insurance community (here, the census tracts inside it); household aid to the registrant’s city; repair grants to Larkfield-Wikiup. 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 Larkfield-Wikiup total about $4.9M 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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Boundary source: https://tigerweb.geo.census.gov/arcgis/rest/services/TIGERweb/Places_CouSub_ConCity_SubMCD/MapServer/19 · 2025-01-01