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DHazard risk
Natural hazards in Lochsloy · FEMA

On FEMA’s figures, Lochsloy faces more hazard damage per building than 89% of U.S. towns, mostly from river and rain flooding

On FEMA’s National Risk Index, Lochsloy gets a D for hazard risk: higher expected damage per building than 89% of U.S. towns, #233 of 285 in Washington. Most of that expected damage is river and rain flooding (73%), then earthquakes (26%). FEMA’s files show no paid flood insurance claims here.

Graded on FEMA’s expected yearly building damage per dollar of building value (NRI v1.20, December 2025), weighted by where residents live; flood claims are shown, not graded. How hazard risk is graded

more than 89%of U.S. townsLess damageMoreExpected yearly damage per dollar of building, vs. the 21,298 U.S. towns we grade#233 of 285 in Washington
By hazard

What Lochsloy faces

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

River and rain flooding

73%of expected building damage
Well above average · in the top 9% of U.S. census tracts
Recorded about once every 3 years in the area

Earthquakes

26%of expected building damage
Well above average · higher than 87% of U.S. census tracts
Smaller shares here
 Tornadoes Ice storms Landslides top 3% Hail Strong wind Wildfire Winter storms Cold waves Heat waves Lightning Volcanic activity top 3%
FEMA models no building damage here
Coastal floodingHurricanesAvalanchesTsunamis

Shares are of FEMA’s expected building damage, the measure the grade uses; ranks compare each hazard’s building-damage rate with all 85,154 U.S. census tracts. In FEMA’s terms, river and rain flooding is FEMA’s “Inland Flooding” (rivers and streams overflowing their banks, or rain overwhelming drainage). FEMA defines coastal flooding as high or rising tides and storm surge, so surge damage is counted there. Drought isn’t listed: FEMA counts its losses in crops only.

Flood risk changes street by street. Check a specific address on FEMA’s flood map, and ask about flood insurance before you buy.
Hazard risk grade

What’s behind Lochsloy’s grade

River and rain flooding is 73% of the building damage FEMA expects in Lochsloy, and Lochsloy’s rate of river and rain flooding damage is in the top 9% of U.S. census tracts. Next is earthquakes at 26% (higher than 87% of U.S. census tracts).

Where Lochsloy sits
Lochsloy
Least damageMiddleMost damage

D #233 of 285 in Washington; higher expected damage per building than 89% of U.S. towns (21,298).

Lochsloy’s residents live in 2 census tracts; FEMA’s figures are combined by where they live.

What drives the damage to buildings
River and rain flooding73%Earthquakes26%

The typical Washington town has higher expected damage than 76% of U.S. towns; within the state, Lochsloy has more expected damage per building than 82% of Washington towns.

In dollars, FEMA expects about $1.6M a year in losses across Lochsloy: $1.3M to buildings, the rest to people and crops.

A small-area figure. Lochsloy covers 2 census tracts, combined by where residents live. FEMA’s model is an average year for today’s buildings, not a record: the claims and disasters below are the record.

How TownRatings grades hazard risk →

Flood insurance claims

Does Lochsloy flood? No paid flood claims on record

FEMA’s records show no paid flood insurance claims in Lochsloy. That’s not a promise: most homes don’t carry flood insurance, so small floods go unrecorded.

of homes in flood zones are insured
of all homes are insured
No community discount

Lochsloy 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.
Disasters

The storms Lochsloy remembers

None of the 31 disasters declared for Snohomish County shows FEMA aid or repair money reaching Lochsloy itself in FEMA’s records, so these are its biggest flood-claim years.

Disasters declared, by decade
Paid out in LochsloySnohomish County only

Snohomish County has had 31 natural disasters declared by the President since 1953, most often severe storms, then floods. Not counted: the 2005 Hurricane Katrina evacuee emergency, which covered counties that took in evacuees.

Also 1 FEMA wildfire suppression grant (Fire Management Assistance, not a disaster declaration) for fires in Snohomish County, 2022–2022.

Next door

Lochsloy and its neighbors

Lochsloy is 2nd of the 2 graded towns here, from least expected damage per building to most. Tap a town to see its hazards.

Lake Cassidy: hazard risk B−Lake CassidyLochsloy
Lowest fifthSecondMiddleFourthHighest fifth
TownHazard riskMostly (buildings)Flood claims
Lake CassidyB−less damage than 54%river and rain flooding—
LochsloyDmore damage than 89%river and rain flooding0

Hazard risk = FEMA’s expected yearly building damage per dollar of building value, vs. the 21,298 U.S. towns we grade; the map is shaded by fifths of the same scale. Flood claims = paid federal flood insurance claims on record.

Be ready

Get ready for what Lochsloy faces

A short kit for the hazards that drive the building damage here, what to check before you buy, and where neighbors get alerts.

When the river rises
  • Turn around at flooded roads: a foot of moving water can carry off a car.
  • Flood insurance usually takes 30 days to start, so buy it before the forecast.
  • Keep papers and medicines up high, in a grab-and-go bag.
More from Ready.gov ↗
Earthquakes
  • Drop, cover and hold on.
  • Strap tall furniture and the water heater to the wall.
  • Know how to shut off the gas.
More from Ready.gov ↗
Before you buy or rent
  • Look up the address on FEMA’s flood map.
  • Ask the seller or landlord whether it has ever flooded, and what flood insurance costs there.
  • Get a flood insurance quote early: policies usually start 30 days after you buy.
When a storm is coming
Forecast and alertsWeather →911, the nearest ERSafety →

Know where neighbors sign up for alerts? Add it to the Handbook so everyone has it.

Questions about natural hazards in Lochsloy

Is Lochsloy at risk for natural disasters?

On FEMA’s National Risk Index, Lochsloy has higher expected damage per building than 89% of U.S. towns: D for hazard risk, #233 of 285 in Washington. Most of the expected damage is river and rain flooding (73%) and earthquakes (26%). This is FEMA’s model of an average year for today’s buildings, not a forecast.

Is Lochsloy in a flood zone?

Flood zones are drawn street by street, so the answer depends on the address: look it up on FEMA’s flood map. In Snohomish County, 27% of homes in mapped flood zones carry federal flood insurance, and 0.7% of all homes do.

How much is flood insurance in Lochsloy?

FEMA’s Community Rating System list shows no discount for Lochsloy’s flood program. Premiums depend on the building; policies usually start 30 days after you buy, so get a quote early.

Is Lochsloy at risk from river and rain flooding?

It is the largest share of the building damage FEMA expects here (73%), and Lochsloy’s rate for it is in the top 9% of U.S. census tracts.

Storm stories

Memories, warnings and help from neighbors in Lochsloy.

Town Square →
Start the conversation

Sources: FEMA National Risk Index v1.20 (December 2025), census-tract table, combined by where Lochsloy’s residents lived in the 2020 census; 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. Homes: Census ACS 2020–24. Preparedness tips: Ready.gov. FEMA’s model is an average of expected damage, not a forecast. How hazard risk is graded.