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Natural hazards · Maple Valley

Maple Valley, WA natural hazards

Most of the natural-hazard damage FEMA expects in Maple Valley comes from inland flooding, and overall the risk is high for a U.S. community. 7 federal disasters brought FEMA money into town.

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

How exposed is Maple Valley?

70
High
vs. U.S. communities

FEMA expects yearly storm and flood damage to homes and buildings in Maple Valley to be higher than in 70% of U.S. communities, mostly from inland flooding and earthquakes.

Inland flooding53%Earthquakes44%Everything else4%
By hazard

What Maple Valley faces

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

Inland flooding

53% of expected damage
Above average · higher than 68% of U.S. places
Recorded about once every 4 years in the area

Earthquakes

44% of expected damage
Well above average · higher than 88% of U.S. places

Lower here

TornadoesHailIce stormsWinter weatherCold wavesHeat 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 Maple Valley flood?

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

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

What’s been done with FEMA grants

18flood-prone properties bought out and cleared
Disasters that hit Maple Valley

7 federal disasters brought FEMA money here

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

Brought FEMA money into Maple ValleyDeclared for King County only
2025

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

35 households applied for aid $451K aid approved
2012

Severe Winter Storm, Flooding, Landslides, and Mudslides

$106K to the City of Maple Valley for repairs
2009

Severe Winter Storm, Landslides, Mudslides, and Flooding

61 households applied for aid $159K aid approved
2007

Severe Storms, Flooding, Landslides, and Mudslides

1 household applied for aid
2006

Severe Storms, Flooding, Landslides, and Mudslides

1 household applied for aid
2003

Severe Storms and Flooding

2 households applied for aid $222 aid approved
2001

Earthquake

$34K to the City of Maple Valley for repairs
King County has had 30 natural disasters declared since 1953, most often floods and severe storms.
Around Maple Valley

Maple Valley and the towns around it

Hobart: Very high, mostly inland floodingLake Morton-Berrydale: High, mostly earthquakesCovington: High, mostly earthquakesKent: Very high, mostly earthquakesMirrormont: Very high, mostly avalanchesEast Renton Highlands: Very high, mostly earthquakesLake Holm: Very high, mostly inland floodingAuburn: Very high, mostly earthquakesBlack Diamond: High, mostly avalanchesShadow Lake: High, mostly earthquakesTukwila: Very high, mostly earthquakesDes Moines: High, mostly earthquakesSeaTac: Very high, mostly earthquakesRenton: Very high, mostly earthquakesMaple Valley: High, mostly inland flooding Maple ValleyHobartLake Morton-BerrydaleCovingtonKent
Very lowLowModerateHighVery high
Hobartmostly inland floodingVery high
Kentmostly earthquakesVery high
Covingtonmostly earthquakesHigh
Maple Valleymostly inland floodingHigh
Lake Morton-Berrydalemostly earthquakesHigh
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. Maple Valley covers 4 census tracts, combined by population.
Money that reached townFlood claims are matched to Maple Valley’s own flood-insurance community; household aid to the registrant’s city; repair grants to the City of Maple Valley. 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 Maple Valley total about $8.1M 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/18 · 2025-01-01
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