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Natural hazards · Snohomish

Snohomish, WA natural hazards

Most of the natural-hazard damage FEMA expects in Snohomish comes from earthquakes, and overall the risk is very high for a U.S. community. Flood insurance has paid 46 claims here since 1978. 12 federal disasters brought FEMA money into town.

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

How exposed is Snohomish?

84
Very high
vs. U.S. communities

FEMA expects yearly storm and flood damage to homes and buildings in Snohomish to be higher than in 84% of U.S. communities, mostly from earthquakes and inland flooding.

Earthquakes76%Inland flooding20%Everything else5%
By hazard

What Snohomish faces

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

Earthquakes

76% of expected damage
Well above average · higher than 96% of U.S. places

Inland flooding

20% of expected damage
Above average · higher than 50% of U.S. places
Recorded about once every 3 years in the area

Lower here

Coastal floodingTornadoesHailIce stormsWinter weatherCold wavesHeat wavesWildfireLandslidesStrong windLightningVolcanic activity

Not a risk here

HurricanesDroughtAvalanchesTsunamis
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 Snohomish flood?

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

46paid claims since 1978
$1.1Mpaid to owners
3homes flooded more than once
19782026

Biggest named events

  • Torrential rain: 4 claims, $121K
  • 2025-12-AtmosphericRiver: 3 claims, $99K

Homes that flooded again and again

■ FEMA “severe repetitive loss” (0) ■ flooded 2+ times

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

What’s been done with FEMA grants

15homes raised above flood level
6flood-prone properties bought out and cleared
3buildings floodproofed
Disasters that hit Snohomish

12 federal disasters brought FEMA money here

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

Brought FEMA money into SnohomishDeclared for Snohomish County only
2025

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

74 households applied for aid $668K aid approved
2022

Severe Winter Storm, Straight-Line Winds, Flooding, Landslides, and Mudslides

$20K to the City of Snohomish for repairs
2015

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

$16K to the City of Snohomish for repairs
2014

Flooding and Mudslides

3 households applied for aid $3K aid approved
2012

Severe Winter Storm, Flooding, Landslides, and Mudslides

$22K to the City of Snohomish for repairs
2009

Severe Winter Storm, Landslides, Mudslides, and Flooding

119 households applied for aid $301K aid approved $597K to the City of Snohomish for repairs
2008

Severe Winter Storm and Record and Near Record Snow

$15K to the City of Snohomish for repairs
2007

Severe Storms, Flooding, Landslides, and Mudslides

20 households applied for aid $88K aid approved $10K to the City of Snohomish for repairs
2006

Severe Winter Storm, Landslides, and Mudslides

$10K to the City of Snohomish for repairs
2006

Severe Storms, Flooding, Landslides, and Mudslides

73 households applied for aid $367K aid approved $115K to the City of Snohomish for repairs
2003

Severe Storms and Flooding

2 households applied for aid $2K aid approved
2001

Earthquake

$12K to the City of Snohomish for repairs
Snohomish County has had 33 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. Snohomish covers 2 census tracts, combined by population.
Money that reached townFlood claims are matched to Snohomish’s own flood-insurance community; household aid to the registrant’s city; repair grants to the City of Snohomish. 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 Snohomish total about $7.5M 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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