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Wasco County, Oregon

Natural disaster risk, federal disaster history and flood insurance facts.

Relatively Low overall risk
22nd of 36highest risk in Oregon
$29Mexpected losses a year
24federal declarations
1 in 250homes with flood insurance
Photo: U.S. Geological Survey, public domain

Wasco County, Oregon has a relatively low overall risk from natural hazards in FEMA's National Risk Index. Its risk score is higher than 68% of US counties. It ranks 22nd of 36 counties in Oregon. The costliest hazards here are wildfires, inland flooding and earthquakes. FEMA estimates about $29 million a year in expected losses, or roughly $1,085 per resident. Since 1964 it has been included in 24 federal disaster or emergency declarations for natural events (10 major disasters). The most recent was in July 2026 (Grasshopper Fire). Only 45 homes here carry federal flood insurance. Since 1978, federal flood insurance has paid about $94,000 on 10 claims here.

FEMA National Risk Index December 2025; OpenFEMA declarations to Nov 6, 2026; NFIP records. Updated November 6, 2026.

Top risks in Wasco County

$14.8 million a yearExpected losses. Damaging events about once every 60 years.
  • Clear dry plants and debris within 5 feet of the house.
  • Get home insurance quotes early; availability varies by area.
$9.5 million a yearExpected losses. Damaging events about once every 9 years.
  • Check the FEMA flood map for your address, and ask the seller or landlord about past flooding.
  • Price a flood policy now. Most new federal policies take 30 days to start.
$2.4 million a yearExpected losses. Damaging events about once every 145 years.
  • Ask whether an older house is bolted to its foundation.
  • Consider separate earthquake insurance where risk is high.
HazardRatingScoreExpected loss a year
WildfireHigh98.1
$15M
Inland floodingLow59.2
$9M
EarthquakeLow83.0
$2M
Cold waveLow43.1
$799K
Ice stormHigh84.2
$609K
Heat waveLow42.6
$280K
LightningLow38.5
$163K
Strong windVery Low15.1
$135K
HailVery Low16.5
$62K
Winter weatherLow40.1
$49K
Volcanic activityLow91.2
$28K
TornadoVery Low4.7
$18K
AvalancheLow73.2
$9K
DroughtVery Low17.5
$2K
LandslideVery Low55.2
$2K

Scores are percentiles: a score of 90 means higher risk than about 90% of US counties for that hazard. Hazards FEMA does not rate here are left out. Social vulnerability is relatively low and community resilience is relatively moderate in FEMA's measures.

Federal disaster history

Recent disasters nationwide ›

Declarations by decade

Federal declarations for natural events that included Wasco County. 2020s bar runs to November 2026.

By type

Fire14
Flood4
Severe Storm4
Drought1
Coastal Storm1

Most recent

Jul 25, 2026Grasshopper FireFire management
Apr 7, 2026Severe Storms, Straight-Line Winds, Flooding, Landslides, and MudslidesMajor disaster
Jun 11, 2025Rowena FireFire management
Jan 1, 2025WildfiresMajor disaster
Jul 11, 2024Larch Creek FireFire management
Apr 13, 2024Severe Winter Storms, Straight-Line Winds, Landslides, and MudslidesMajor disaster
Aug 3, 2022Miller Road FireFire management
Sep 15, 2020Wildfires and Straight-Line WindsMajor disaster
Aug 28, 2020White River FireFire management
Aug 13, 2020Mosier Creek FireFire management
Show all 24
Aug 2, 2018South Valley FireFire management
Jul 18, 2018Substation FireFire management
Aug 6, 2014Rowena FireFire management
Aug 18, 2013Government Flats Fire ComplexFire management
Aug 28, 2009Microwave FireFire management
Feb 22, 2007Severe Winter Storm and FloodingMajor disaster
Sep 7, 2005Hurricane Katrina EvacuationEmergency
Feb 19, 2004Severe Winter StormsMajor disaster
Jul 26, 2002Or - Sheldon Ridge Fire - 07/25/02Fire management
Feb 9, 1996High Winds, Severe Storms and FloodingMajor disaster
Aug 3, 1995FloodingMajor disaster
Apr 29, 1977DroughtEmergency
Jan 25, 1974Severe Storms, Snowmelt & FloodingMajor disaster
Dec 24, 1964Heavy Rains & FloodingMajor disaster

Oregon also had 42 statewide declarations that did not name single counties.

Storm history since 1958

Tornado risk by county ›

The National Weather Service has logged 41 storm reports in Wasco County since 1958 and about $27,000 in reported damage. The strongest on record here was an F0 tornado on May 11, 1970.

1tornadoes
14hail reports, largest 1.75 inches
17damaging thunderstorm winds
3floods and flash floods

Strongest tornadoes

DateStrengthNearHurt / killed
May 11, 1970F0–0 / 0

Most damaging storms

DateTypeNearDamage
Jul 23, 2002WildfireThe Dalles$10K
May 23, 2001Thunderstorm WindAxford$5K
Aug 9, 2019Thunderstorm WindTygh Vly$5K
Aug 9, 2019Thunderstorm WindWamic$5K
Jun 4, 2009Thunderstorm WindMaupin$2K

Source: NOAA Storm Events Database, county-based reports through May 19, 2023. Tornado records start in 1950, hail and wind in 1955, and floods and other storm types in 1996, so older decades undercount. Damage is in dollars of the year it happened and is often an estimate. Winter storms, heat and hurricanes are logged by forecast zone, not county, so they are not counted here.

Flood insurance in Wasco County

Check your address flood zone ›
0.4%of homes have federal flood insurance (45 policies)
0%of homes in mapped high-risk flood zones are insured
$93,778paid on 10 flood claims since 1978
1996costliest year, with $54,260 paid

National Flood Insurance Program (NFIP) records only; private flood policies are not included. Home counts as of Aug 3, 2026. Since 2021 NFIP prices each home separately under Risk Rating 2.0, so your price depends on the building, not the county. Ask an agent for a quote.

Homes in Wasco County

$367,400median home value (Oregon $477,600, US $332,700)
1973median year homes were built (Oregon 1981, US 1980)
62%of homes built before 1980, before many modern wind, quake and flood building rules
17.8%of homes are mobile homes, which are the least safe in tornadoes and high winds

Older homes and mobile homes usually suffer more damage in storms, floods and earthquakes, and can cost more to insure. If you are buying, ask about roof age, foundation bolting and any retrofits. Source: US Census Bureau, American Community Survey 2020 to 2024 5-year estimates; 12,198 housing units.

Compare in Oregon

All 36 ›
Largest countiesOverall riskTop hazard
Multnomah CountyHighEarthquake
Washington CountyHighEarthquake
Clackamas CountyHighEarthquake
Lane CountyHighInland flooding
Marion CountyHighEarthquake
Jackson CountyModerateInland flooding
Deschutes CountyModerateInland flooding
Linn CountyModerateEarthquake

Neighboring counties

CountyOverall riskDeclarations
Clackamas CountyHigh21
Marion CountyHigh13
Jefferson CountyVery Low20
Hood River CountyVery Low15
Klickitat County, WALow27
Gilliam CountyVery Low10
Sherman CountyVery Low8
Wheeler CountyVery Low12

Common questions about Wasco County

What is the biggest natural hazard in Wasco County?

Wildfire has the highest expected yearly losses in Wasco County, about $14.8 million a year in FEMA's estimate. Inland flooding is second at $9.5 million.

How many federal disasters has Wasco County had?

Wasco County has been included in 24 federal disaster or emergency declarations for natural events since 1964, including 10 major disasters. The most recent was Grasshopper Fire in July 2026.

Is Wasco County a high-risk place to live?

Its overall rating is Relatively Low, 22nd highest of 36 in Oregon. A county rating covers the whole area. Risk at one address can be much higher or lower, so check the FEMA flood map and ask about the home's history.

Do I need flood insurance in Wasco County?

Standard home insurance does not cover flooding. About 1 in 250 homes in Wasco County has federal flood insurance. Lenders require it in mapped high-risk zones, but many flood claims come from outside those zones.

How many tornadoes has Wasco County had?

NOAA records list 1 tornadoes in Wasco County since 1950. The strongest was an F0 tornado on May 11, 1970. The weather service has also logged 14 hail reports and 3 floods here.

Sources: FEMA National Risk Index (December 2025), OpenFEMA Disaster Declarations Summaries, and NFIP policy and claims data. Hazard Compass is independent and not affiliated with FEMA. These figures describe the whole county, not a single property, and are not insurance or safety advice. Report a problem.